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• Brass plating on stainless steel surgical instruments (December 1)

• Hard Chrome Plating vs. Flame Spray (November 15)

• Stainless or zinc plated screws better for aluminum solar collectors? (October 26)

• Need gold plating directly on titanium (October 12)

• Need high resistivity biocompatible plating on nichrome (October 10)

• Convert anodizing line to another process (September 29)

• Acid resistant coating for aluminum (September 9)

• Powder Coating tiny blades for fishing lures (August 25)

• Chrome vs. Powder Coating of Motorcycle rims (July 24)

• Need scratch resistant, conductive, black coating on copper strip (July 5)

• Superfinishing Stainless Steel (December 2)

• Formula for polishing and buffing compounds (November 22)

• Vibratory burnishing compound formulation open Q. (November 11)

• Rz to Ra conversion (October 22) open Q.

• Polishing Intricate Stainless Steel Spheres and Concave Mirrors (September 28) open Q.

• Need mirror finish on Socket & Philips screws (August 29)

• Polishing copper and brass (August 25)

• What media will allow tumble finishing in 30 minutes? (August 15)

• Sand blasting standards: Swedish SA 1, SA 2, SA 2.5, SA 3 vs. NACE & SSPC (August 1)

• RMS vs Ra (July 9) open Q.

• Maximum groove depth in nickel plating with diamond cutting (July 5)

• How to make 3-in-1 Phosphating Chemical? open Q. (November 30)

• How to clean aluminium hollow rivets (November 30)

• Loss of weight in acid pickling (October 27)

• Black stripe on cleaned and annealed cold rolled coils (October 12)

• How to make phosphating solution (September 27)

• Problems and solutions in zinc phosphating (September 27)

• Black Oxide vs Phosphate (September 18)

• Powdered metal parts rusting after pickling process (September 16)

• Chemical & Electropolishing of Brass RFQ Thane India (September 15)

• Electroplating without acid pickling (September 14)

• Degreasing copper cylinders for chrome plating (August 21)

• Protecting mother of pearl during gold plating open Q. (November 19)

• Masking instruction and training open Q. (November 15)

• Need masking help for anodizing (September 25)

• Anodizing of titanium: Type II alkaline has blue splotches (December 2)

• Passivating stainless steel before gold plating (December 2)

• AMS2488 Type II on Titanium: maximum touch-up area? (November 20)

• Stains after Stainless Steel Passivation, Rinsing Requirements (November 9)

• Passivation of Titanium Medical Implants (November 9)

• Cloudiness on Type III Anodized Titanium Med Screws (October 24)

• Problems & Solutions in Passivation of Titanium (October 22)

• Stainless steel etching -- How To (October 15)

• Electrochemical Weld Cleaning on 316L Stainless Steel (September 24)

• Anodizing titanium with trisodium phosphate (TSP) (September 24)

• Passivation of 303SS with Nitric Acid Q&A, Problems & Solutions (September 20)

• Problems electropolishing stainless castings (August 30)

• Electropolishing small 4xx / 400 series stainless steel parts (August 15) open Q.

• Electropolishing of stainless steel -- Q&A, Problems & solutions (August 13)

• Stainless steel laser etch and passivating (August 9)

• Electropolish, Passivate, or Chemical Polish 4140 & 4340 Steel? (July 30)

• Stainless steel passivation color inconsistent (July 30)

• Anodizing is splotchy grey, not black (November 30)

• Two-color anodizing (November 30)

• Switching to Aluminum Gravure Cylinders (November 28)

• Type 2-1/2 & Room Temperature Hardcoat Anodizing (November 27)

• Need Gold Color Hard Anodize (November 24)

• Anodizing A380 vs. A360 (November 22)

• Nickel free cold sealing process for anodized aluminum open Q. (November 21)

• Lines appear in aluminium extrusions open Q. (November 21)

• Aluminium gate manufacturer wants to pretreat before powder coating

• White spots in black anodizing (November 12)

• Re-anodizing Aluminum without enlarging holes (November 5)

• Excess Sludge Buildup in Acid Etching of Aluminum (October 29) open Q.

• Wrong finished color for MIL-A-8625 Type III anodize on 7075-T6 (October 21)

• Aluminum corrosion after stripping the anodizing (October 15) Inquirer often helps others, so especially deserves our help

• Anodizing a Weldment of Different Aluminum Alloys (October 15)

• Temperature limit for chromate conversion coating on aluminum (October 11) open Q.

• Where to get glass coated abrasive paper?RFQ Denmark (October 11) Inquirer often helps others, so especially deserves our help

• Big pits on big panels in boric-sulfuric acid anodizing open Q. (October 8)

• Anodizing problem on AA 5052 Alloy (October 7) open Q.

• Plating onto Aluminium without zincate or stannate (October 4)

• White corrosion spots/pits on chromated aluminum after 1-2 months (September 29)

• Plating or Anodizing of Aluminum Gears (September 28) open Q.

• Hard Anodize Type 6061 Aluminum: stains (September 27)

• Film on anodized parts: is black dye tank contaminated? (September 27)

• Chemical conversion coating on top of anodizing (September 27)

• Nitric acid drag-in to dye/seal tank (September 27)

• Dyed Anodizing Color Matching Q&A, Problems & Solutions (September 27)

• Alodine, Iridite, Chem-film not sticking / rubbing off (September 27)

• Silver Plating on Aluminum: Blister / Bubble Problems (September 25) open Q.

• Only one of the parts on the rack Hard Anodizes (September 24) open Q.

• Crazing/Cracking problem in anodizing (September 22) open Q.

• What hardness/abrasion resistance from anodizing? (September 16) open Q.

• Most practical method to use PTFE to coat hard anodized aluminum parts? (September 15)

• Mixing two different part sizes in the anodizing bath (September 13)

• Sulfuric Acid Anodize: Cl, F, Sulfide Limits (September 9)

• White powder on anodized finish (September 7)

• Zincating on Aluminum: Problems with 6000 series (September 6) open Q.

• Anodizing 0.003" 5052 aluminum? RFQ Palmdale CA (September 6)

• How to Chromate Conversion Coat ADC12 Aluminum (September 5) open Q.

• White dots on an anodised finish (August 23) open Q.

• Thermal conductivity of conversion coatings on aluminum (August 20)

• Anodising rectifier and power requirements (August 10) open Q.

• Can RoHS Yellow Chromate Survive 168 Hour Salt Spray? (August 9)

• Problems with Color of Hardcoat Anodize (August 7)

• How to anodize 6061 T6 aluminum and what do I need? (August 7) open Q.

• Iridite 17P and RoHS compliant alternates? (August 5) open Q.

• How to eliminate anodizing appearance variations (August 5)

• Anodizing on 7000/7XXX aluminum is chipping at edges (August 5)

• Burning problem in Hard Anodizing of Aluminum (August 4)

• Electrical resistance of Class 3 chromate conversion coating (August 4)

• Can't get proper black color on hardcoat anodizing (August 3)

• Nickel Plating on Aluminum Adhesion Problem (July 30) open Q.

• Metallic Contaminants in Sulfuric Acid Anodizing Bath (July 26)

• Special light & glasses to reveal whether aluminum is anodized (July 24) open Q.

• Alodine is not properly coating some aluminum alloys (July 22) open Q.

• De-smutting/De-Oxidizing of aluminum (July 21)

• Acid vs. Alkaline Etch before Chromic Acid Anodizing Inquirer often helps others, so especially deserves our help (July 19)

• Anodized aluminum is inadvertently scrubbing N2O gas (July 13) open Q.

• Minimum anodizing thickness for good dark black? (July 13) open Q.

• Horizontal anodizing of aluminum sheets (July 10)

• Aluminum Anodizing flakes off when heated to 125 °C (July 7) open Q.

• Black spots in anodized aluminum profile (July 2) open Q.

• Anodized surface is powdery (July 2)   

• Plating glass-to-metal seals open Q. (December 2)

• Does Boric acid affect hardness of Nickel Plating (December 2)

• Reducing iron contamination in a hard chrome plating bath (December 2)

• Remove sodium metabisulfite from Nickel Plating bath open Q. (December 2)

• Acid Zinc / Potassium Zinc Chloride Plating: Problems & Solutions open Q. (December 1)

• Problem of white spots after Zinc Plating (November 28)

• Need to do Zinc Plating on Stainless Steel (November 23)

• Need zinc plating service RFQ Texas (November 23)

• Activating carbon steel for chrome plating (November 22)

• Design of anodes for hard chrome plating (November 20)

• Zinc plating blisters on brazed and oil-quenched component open Q. (November 16)

• Maclee brighteners for tin plating open Q. (November 16)

• Non-cyanide copper strike/plating process (November 16)

• Needed: Plating Company to Chrome Plate to QQ-302B TY I CLASS I RFQ Scottsdale, AZ (November 14)

• Can Magnetic Jigs/Racks be used for Hard Chrome Plating? open Q. (November 14)

• Nickel Sulfamate Plating is Peeling from Copper (November 10)

• Anode fabrication for hard chrome plating open Q. (November 9)

• Zinc Plating with Blue Chromate is turning pink & yellow (November 3)

• HCl causes parts to blister open Q. (September 24)

• Pulse Plating Settings for PCB/PWB? open Q. (October 26)

• Alkaline non-cyanide gold flash bath contamination (October 26) open Q.

• Unplated area inside blind holes is rusting (October 22)

• Granules form when acid copper plating? (October 22)

• Hexavalent chromate is okay, trivalent gets white rust and black spots in 96 hours (October 19)

• Can we improve our tin plating Salt Spray results? (October 19) open Q.

• Nickel plating anticipated salt spray test hours (October 18) open Q.

• What should be exact distance from hard chrome anode to cathode? (October 12) open Q.

• Maximum allowable thickness of nickel plate under silver plating (October 11) open Q.

• Zinc plating defects (Quality of metal finishing) (October 10)

• Pitting & Bubbles in Hard Chrome Plating (October 9) open Q.

• Problems with tin plating over copper or brass (October 9) open Q.

• Need Decorative Nickel Plating for Microphone Bodies RFQ Nashville TN (October 8)

• Metal plating of babbitting (October 5) open Q.

• Our copper plating anodes are turning black (September 30) open Q.

• Conductivity of the zinc plating with chromate conversion coating (September 29) open Q.

• Want more brightness & hardness, and better LCD coverage, in HEEF-25 Chrome Plating (September 29) open Q.

• Rose gold plating is rusting (September 27) open Q. 2nd Rqst

• Acid Copper Plating Problems (September 25)

• Differences between chloride (acid) and alkaline zinc plating (September 25)

• Nickel plating plus rhodium as substitute for silver plating (September 23) open Q.

• Very early rusting of zinc-nickel plated screws (September 23) open Q.

• Need tin plating on 100 aluminum chain saw pistonsRFQ WA Australia (September 21)

• Cyanide copper solutions temperature and anodes (September 19)

• Hard chrome plating troubleshooting (September 18) open Q.

• Hard Chrome Plating on Hydraulic Cylinders Scratched by Seals (September 18) open Q.

• Need Plating onto Tungsten Powder RFQ Cohasset MA (September 15)

• Need brass plating on aluminum frames RFQ Overland Park KS (September 14)

• Nickel striking of stainless steel (September 9) open Q.

• Black spots on brass and copper plating (September 6) open Q.

• Soft chrome under hard chrome plating for salt spray resistance (August 30)

• Zinc plating problem (August 29)

• Silver plating over aluminum for PIM (Passive Intermodulation) avoidance (August 19)

• Vermeil jewelry is tarnishing (August 12)

• Tin Plating Problem (August 12)

• How to plate copper wire with lead (August 7) open Q.

• Electroforming onto silicone forms RFQ Woodland CA (August 6)

• Hard Chrome plating of zinc die castings (August 5) open Q.

• Chrome Plating Problems on Gravure Printing Cylinders/Rolls (August 5)

• How to "Distress" Chrome Plating RFQ Cambridge UK (August 2)

• Reducing chloride concentration in acid copper bath (July 30) open Q.

• Titanium-Cadmium Plating Q&As (July 27)

• Alkaline Zinc Plating Q&A's, Problem: White Patches After Chromating (July 19) open Q.

• Cadmium Plating Is Peeling from Nickel Plating (July 18) open Q.

• Potassium Chloride Shortage for Zinc Plating Is there an alternative? (July 18) open Q.

• Tin plating anode problems (July 16) open Q.

• Tin plating discolors (turns yellow) (July 16) open Q.

• Zinc-Iron Plating with Trivalent Chromate fails 240-hour salt spray (July 15) open Q.

• Zinc plating failing 48-hour salt spray? (July 12)

• Bleed-out from seams after zinc plating (July 9) open Q.

• Zinc-plating appearance problems (July 5)

• Conductivity of Zinc-Nickel Plating & Chromating (July 5) open Q.

• Troubles with rose gold plating (July 4) open Q.

• Etching of ABS for Electroplating with chromic-sulphuric acid open Q. (November 9)

• Electroless Nickel Plating on Leaded Steel Alloys open Q. (November 8)

• Electroless nickel plating testing with UAN solution (October 14)

• Electrical conduction properties of electroless nickel plating (October 14) open Q.

• Sodium Hypophosphite alternate chemical? (October 5) open Q.

• Screen printing onto Electroless nickel Plating (September 27)

• Electroless nickel to prevent high temperature oxidation of copper (September 18) open Q.

• Factors affecting Electroless Nickel deposit rate (September 6)

• How to determine plating defect vs. plastic substrate defect (August 28)

• Palladium activation for EN Problems & Solutions RFQ Mumbai India (August 17)

• Can Electroless Nickel Plating be Machined? (July 18) open Q.

• Formula for electroless nickel plating solution (July 2) open Q.

• DC Charge lost during PVD TiAIN Coating. Effect? open Q. (November 20)

• How to get Aurora Borealis effect on crystal beads? (October 27) open Q.

• Aluminum PVD on PC Temperature Endurance (October 2) open Q.

• PVD coatings: color control Q&A's (September 18) open Q.

• Coating & Finishing of Titanium for Biomedical (August 21) open Q.

• PVD gold color control and matching Q&A's, Problems & Solutions (August 14)

• Vacuum Cad plating adhesion problem on 13-8 stainless (July 17) open Q.

• Aluminum sticking to zinc coated plates stored in warehouse (December 1)

• Galvanizing flux bath has iron contamination open Q. (November 21)

• Want to know reasons for PIT MARKS on galvanized sheet open Q. (November 13)

• How to calculate/measure the thickness of zinc coatings (November 5)

• Spotting, Staining, Blackening of Hot Dip Galvanized Finish (November 5)

• Minimize/maximize spangle in hot dip galvanizing open Q. (November 4)

• Zinc coating on GI wire cracks when we making gabion box (October 25) open Q.

• Rough & lumpy low quality galvanizing (October 15) open Q.

• Aluminium addition to Galvanising Kettle (October 10) open Q.

• GP concertina wire rusts only when sent to some cities (October 10) open Q.

• Risk to galvanizing kettle from low zinc level? (September 28)

• White patches on new hot dip galvanized poles (September 23)

• Hot-Dip Tinning Problem: Crystals in molten tin tank (September 13) open Q.

• Chrome-free galvanized pipe gets black spots (August 23)

• Galvanizing kettle furnace and burner design (August 21)

• Black spot problem on hot dip galvanized mesh (August 18)

• Chemical to Remove slag/dross of zinc from hot dip galvanizing (August 10)

• Excessive generation of dross in zinc kettle startup (August 10)

• Is yellowish/green dichromate appearance on galvanizing a process defect? (August 10)

• Get zinc out of 5000 lb mold after cooling (August 10)

• Finish on zinc coated steel coil for prefabricated housing (July 2) open Q.

• Pimples on hot dip galvanizing (July 2)

• Black Oxide process problems open Q. (November 13)

• Black oxidation layer went off after shooting test (August 5) open Q.

• Testing the quality of blackening coating (July 16)

• Porcelain enamel surface prep (November 30)

• Need moly-coat (MoS2) dri-film coating RFQ Somerset Kentucky (November 24)

• Dacromet coating questions (July 23) open Q.

• Misc. problems in CED (cathodic electrodeposition) coating (September 26) open Q.

• Foaming in phosphate tank causes CED defects (August 10)

• Emissivity of e-coating vs. powder coating (August 8)

• Pin holes in CED e-coating (July 4) open Q.

• Need to reduce Power bill for infrared oven (December 1)

• "Flame" Powder Coating Systems open Q. (November 15)

• Powder coating on zinc die-castings (November 12)

• Powder coated steel is blistering (November 7)

• Powder coating without baking (November 5)

• Is Conductive Filler Needed before Powder Coating (October 31)

• Powdercoating stainless steel Q&A's, Problems and Solutions (October 12) open Q.

• Touching up powder coating (August 10)

• Mixing powder coating colors to get a new color (August 10)

• Alternatives to powder coating (July 27) open Q.

• Clear coats for brass plating on stainless steel (November 4)

• Coatings for metal spectacle frames (August 30)

• Paint Viscosity Chart / Cross-reference of Ford cups to Zahn cups (November 22)

• Poor adhesion between epoxy primer and urethane top coat (October 6) open Q.

• Fire and vandal-resistant coatings for rolling stock (September 20) open Q.

• Seeking Rainbow Coating on Fish Hooks (September 15) open Q.

• Candy apple coating for brushed steel (August 26) open Q.

• Training on plastisol chemistry and application? open Q. (July 7)

• Are yellow chromate and yellow passivate the same? (November 5)

• Conductivity of olive drab chromate on cadmium (September 22) open Q.

• White colored spots on chromated zinc plating (July 23)

• Cleaning gold burned in soldering (November 11)

• What if we bake for hydrogen embrittlement relief at 300 °C? (October 2)

• Standards for Hydrogen Embrittlement Relief after Zinc-Nickel Plating (September 6) open Q.

• Soldering issue when using a Silver-bearing Soldering Alloy (July 9) open Q.

• Need titanium nitride PVD coating stripped from my watch RFQ Vancouver, BC (November 23)

• How to remove teflon coating from aluminum molds open Q. (November 19)

• Stripping Cadmium plating and choosing a method (November 12)

• What chemicals or processes are used to Strip gold plating? (November 9)

• Avoiding Powder Coating Buildup on Hooks, Racks, Carts & Fixtures? (October 24) open Q.

• Stripping Silver Plating from brass (musical instruments, etc.) (September 25)

• Stripping aluminum with caustic soda (July 27) open Q.

• Removal of tin plating from copper (July 14) open Q.

• Titration for Sulphuric Acid in Anodizing Bath open Q. (November 30)

• Measure nickel plating thickness under silver plating (November 11)

• Determining Sulfuric Acid Percentage in Anodizing Tank open Q. (November 9)

• Is Ferroxyl testing for porosity applicable for chrome on nickel alloys? open Q. (November 3)

• Analysis of soft gold plating bath, removing contaminants (October 26) open Q.

• How to make 0.1N sulfuric acid (October 14)

• Cyanide Brass/Copper plating Solution Analysis (October 11)

• Q-Panel Envelopes...Where to buy them? (October 10) open Q.

• Determine % Nitric Acid. Titration? Conversion factor? (October 8)

• Salt Spray Test -- ASTM B117 Operational Problems (October 4)

• Titrimetric/spectrographic method for iron & copper in chrome bath (September 29) open Q.

• How to measure amount of Gold used and left in the plating bath? open Q. (September 28)

• Procedure for chromic acid and sulphate determination (September 24) open Q.

• Converting Baumé to Concentration (September 9)

• Soak Cleaner / Degreaser: Alkalinity test & oil content (September 2) open Q.

• Gravimetric analysis of gold plating bath (August 29)

• Electrical Resistance Testing of MIL DTL-5541 Chromate (August 26) open Q.

• How to Analyze/Titrate a Hardcoat Anodizing Tank (August 20) open Q.

• Caustic Etch Analysis -- aluminium anodizing (August 14)

• Converting percent by volume to oz/gal (August 9)

• How to test hard chrome without copper sulphate (July 19) open Q.

• Guidelines & best practices for purchasing a salt spray chamber (July 13) open Q.

• Dubpernell test method for chromium plating (July 10) open Q.

• Determination of sulfuric acid in chromium bath (July 5) open Q.

• Correlation between accelerated weathering & natural weathering (July 1) open Q.

• Recover/recycle aluminum from etching & anodizing open Q. (November 21)

• Separating coconut oil from saponified liquid open Q. (November 12)

• Recovery of tin from waste plating solutions (September 30) open Q.

• Wastewater Treatment: Sulphate Removal from Anodizing Wastewater (September 24) open Q.

• Floating Sludge Problem in Wastewater Treatment (September 24) open Q.

• Wastewater Flow Meter Needed (August 2) open Q.

• Chromium in my Anodizing Waste? (July 18)

• Ion Exchange / DM plant calculations (July 13) open Q.

• Copper Sulphate as Swimming Pool Algae Remedy? open Q. (December 2)

• Respirator recommendation for acid copper plating (November 19)

• How poisonous is Potassium gold cyanide? (October 2)

• Danger from galvanized planting boxes? (September 18) open Q.

• What happens when one inhales sulfamic acid dust? (September 13) open Q.

• Stainless pot left on the burner; are the fumes dangerous? (September 7)

• Does drinking milk really help with metal fume fever? (August 29) open Q.

• How toxic is chrome plating on my faucet (August 2)

• Calculating cooling needed for aluminum anodizing open Q. (December 3)

• Starting an auto body acid dip company open Q. (November 30)

• Aluminum corrosion by DI water (November 15)

• Q&A on corrosion-resistant Pump Shaft materials open Q. (November 12)

• Cleaning dummy cathode plates for re-use open Q. (November 4)

• How to sell a Plating company in these environmental times (October 29)

• Buffer pads for McClary Easy Polisher Scrubber RFQ Ontario (October 19)

• Hard chrome plating: Amperage increases although Voltage is constant (October 18) open Q.

• Linear Positioning Systems for Programmed Hoists (October 11)

• Separate nitric acid from mixture of nitric & sulphuric acid (October 10) open Q.

• Is filtration required for acid zinc plating? (October 10) open Q.

• Acid etch (ammonium bifluoride) solids handling RFQ Toronto (October 9)

• Copper Plating Issue: Uneven distribution (September 29) open Q.

• M.O.C. for nitric-sulfuric tank for stripping silver (August 19) open Q.

• Chrome plating mist /fume control (August 12) open Q.

• Hard anodizing chiller sizing for 5-gallon tank (July 30)

• Nickel Sulfamate Plating ventilation & safety issues (July 23)

• Tank material for hard chrome plating (July 9)

• RoHS compliance when electrocleaning after chrome plating (November 20)

• Q&A's about MIL-STD-171 (November 15)

• REACH Regulations Affecting the Plating and Metal Finishing Industry (October 21)

• Can I do MIL-DTL-16232 phosphatizing on galvanized items? (October 15) open Q.

• Penetrant inspection per ASTM E-1417 (October 6) open Q. 2nd Request

• Good Reference Books for Electroplating (September 21)

• Meanings of plating spec abbreviation: MFZnIII (August 31) open Q.

• Is touching up anodized with Alodine/Iridite/Chem-film/Chromate allowed? (August 18)

• Industry specs for powder coating thickness (July 29) open Q.

• Silver Plating is Blistering. Interpreting AMS 2411 Requirements (July 21)

• NADCAP & NADCAP Audits (July 20) open Q.

• "Eurado" metal finish on 1937 radio (November 16)

• What is Continuous Gold Plating (July 2) open Q.

• Titanium vs. steel Samurai Swords (October 27) open Q.

• How to reach very high hardness for 410SS? (October 27)

• Must copper wire be annealed for drawing? (October 14) open Q.

• Need copper masking & carburizing RFQ Chennai India (October 4)

• How to anneal mild steel (September 18) open Q.

• Cast Aluminum Cookware: What Alloy is Best? (August 26) open Q.

• Post treatment of steel after quenching process (August 14) open Q.

• Inconel 718 turns black during pickling only if heat treated (August 5) open Q.

• How to separate copper from silver (July 13) open Q.

• Is this ore/rock Platinum, Palladium & Rhodium? (November 30) open Q.

• Finding the purity of silver in silver alloys (October 16) open Q.

• Want to sell a 4-pound chunk of 20% iridium (September 22) open Q.

• Cleaning gold that has been burned (August 29)

• Recycler asks about extracting silver with steel nails and salt? (August 29)

• Best and Easiest way to refine gold dust to get 99.9% purity (August 29)

• Problems in recovering gold from soil (August 28)

• Separation of Gold metal from Immersion Gold Solution (August 23) open Q.

• How much gold in a pound of computer memory sticks (August 12) open Q.

• Need Teflon re-coating services for pots & pans (November 30)

• How to paint or restore chrome table legs open Q. (November 27)

• Problems & solutions in copper electroforming (November 24)

• Restoring an old National Cash Register open Q. (November 23)

• Electroforming on black kyanite isn't adhering (November 22)

• Coatings for paper maché coffee cups? (November 22)

• Restoring gold trim, changing chrome to gold on motorcycle (November 19)

• Silver Plating of Coin Rings (November 16)

• Damaged the finish on zinc table -- HELP! (November 16)

• Suitable finish for polished forged mild steel sculpture? (November 14)

• Aluminum as 'art' painting surface open Q. (November 14)

• Do It Yourself Nickel Plating (November 10)

• Required Pretreatment before Nickel plating (November 9)

• Need to make a silver ring look gold without using gold (November 9)

• Making aluminum look like copper, gold, or brass open Q. (November 9)

• Solving an electrolysis problem in home plumbing (November 9)

• Old tin plated meat grinder is black (November 9)

• Colorful wall-hanging bowls with tie-dye foil look open Q. (November 8)

• Preparing sea shells for crafts or display open Q. (November 7)

• How to remove lacquer from silver open Q. (November 7)

• Why must Copper Bus Bar be Tin Plated? (November 3)

• Zinc plating & chromating of Carburetors RFQ Winston GA (November 1)

• Why can't I plate thick gold from a low gold content solution? (October 31) open Q.

• How can I make copper turn matte black? (October 31)

• Copper sink turned black RFQ Underwood ND (October 31)

• How to Remove Varnish from Brass (October 31)

• Scratched and Dull Surface on Stainless Steel Refrigerator Door (October 31)

• Polishing Old Brass Fire Extinguishers (October 31)

• Can't plate copper onto nickel (October 29) open Q.

• Black Anodized Aluminum Harley Parts Fading (October 29)

• Protecting bare brass edge on chrome plated brass (October 29)

• Outdoor wood furnaces : Stainless vs mild steel boilers (October 22)

• Stumbled onto good metallizing method for electroforming (October 20) open Q.

• Must I remove glued-on plastic from sill plates before anodizing? (October 18)

• How to make wood finish wrinkle paint (October 15) open Q.

• Cleaning the interior of an air compressor tank (October 12) open Q.

• Replace zinc plating on motorcycle fasteners with nickel plating (October 12)

• Finish for a copper radiator/heatsink. Cleaning copper & solder (October 12) open Q.

• Antiquing Paint / Faux Wood Finishes (October 5) open Q.

• Can Cast Aluminum be Anodized? (October 5)

• Need old, tubular chrome furniture steel wooled and chrome polished RFQ San Francisco CA (October 5)

• Can citric acid clean a catalytic converter? open Q. (October 4)

• Nickel plating before acid copper? (October 2)

• Designing a plating setup to plate 2" diameter plastic coins (September 30) open Q.

• Protective coating for brass elevator doors (September 30)

• Anodizing titanium to blue color (September 30)

• Chroming carbon fiber/plastic (September 28) open Q.

• Chromating carburetors/diecastings (September 21)

• Painting cast iron fountains / restoring rusty fountains (September 20) open Q.

• Anodizing of Aluminum Screws and Threads (September 19)

• RIT dye for dyeing? (September 16) open Q.

• Rusted sheet metal HVAC ducting (September 15) open Q.

• Painting copper gutters (September 15) open Q.

• How to darken aluminum (September 14)

• How to remove stove polish so wood stove can be painted? (September 14) open Q.

• Electroforming a complex shape in thick copper (September 9)

• Why Noxon Brass and Silver Polish Disappeared (September 8)

• Copper remains on welding clamps despite muriatic acid bath (September 6) open Q.

• Nickel plating musical instrument valves (September 5) open Q.

• How to strip Powder Coating from steel? (September 4)

• Help, my yellow brass turned pink (September 3)

• Desperately Need Gillespie Antique Restorer (September 2)

• Looking to refinish my 1950s Chambers cooktop RFQ Louisville MS (September 1)

• Strip newer paint on Geneva Metal Kitchen Cabinets to reveal original (August 31) open Q.

• New silver plated euphonium changed color almost immediately open Q. (August 30)

• Stainless steel flatware with mirror finish scratches too easily (August 30) open Q.

• Thai mid-century bronze flatware (August 26) open Q.

• Home anodizing-Truths from the experts? (August 26) open Q.

• Ruined my brass cabinet handles with vinegar (August 25) open Q.

• Melting old gold to make new jewelry (August 25) open Q.

• Paint not sticking to Ospho (August 23)

• Dark brown or dark copper patina for Nickel/Iron weld (August 20) open Q.

• Recipe for red patina on brass & copper (August 15) open Q.

• Determine & control copper concentration in acid copper plating (August 14) open Q.

• Restoring the yellow dichromate finish on automobile carburetors (August 13)

• Help with unwanted rainbow hues in clearcoat (August 12)

• Fastener systems for aluminum pool cages (August 9) open Q.

• Want to remove the paint from my new refrigerator (August 8) open Q.

• Help with a knife blade turned black (August 8) open Q.

• How to paint this metal mailbox? (August 7) open Q.

• Protecting metal tools from corrosion (August 7)

• Aluminum motorcycle polishing -- rims, wheels, swingarm, frame (July 29)

• Need springs for Antique baby carriage (July 29)

• Is 0.05µ gold plating "good quality"? open Q. (July 29)

• Repair discolored copper awnings RFQ Chicago IL (July 27)

• Restore gold plate/wash on sterling silver cup (July 26)

• What to to paint burners on propane stove with? (July 26)

• How to identify if old lamp is brass, copper, bronze, or cast iron? (July 21) open Q.

• Why black line on face from gold jewelry? (July 18) open Q.

• Require Iridescent Passivation Solution RFQ Perth Australia (July 18)

• Want "Battleworn Nickel" on AR-15 parts RFQ Hagerstown MD (July 13)

• Bronze plating of a 1920's funeral fan RFQ Folsom CA (July 9)

• Need shotgun barrel blued RFQ Wooster OH (July 9)

• Restoring old copper washing basin (July 8) open Q.

• Want silver plating instructions (July 7) open Q.

• Q&As about Gold Plated Flatware (July 5) open Q.

• Seeking finishing suggestions on vintage receiver restoration (July 2) open Q.

• Leaching Lead from Brass with MSA open Q. (November 24)

• Replacing tin chloride with zinc chloride for spray chroming open Q. (November 23)

• User re-engineer wants rust-free steel (November 9)

• Plating a [Electrodeposition of a] Nickel-Chromium Alloy (November 4)

• Titanium plating (Electrodeposition OF titanium) (October 31)

• Was cyanide ever used in hard chrome plating? (September 22) open Q.

• How to electrodeposit PbO2 (lead dioxide) (September 10)

• Anodized aluminum has microscopic black dots on its surface (August 30) open Q.

• Manganese electroplating (Electrodeposition of Manganese) (August 14) open Q.

• Plating onto Carbon Fiber: applications, methods, Q&As (July 30) open Q.

• Producing hardened concrete nails (July 30) open Q.

• Teflon coating of stainless steel (July 29)

• History of iron electroplating (July 19)

• When to replace magnesium electropolishing solution, or how to analyze? open Q. (July 7)

• Why does sodium hydroxide heat up when mixed with water (October 28)

• What part does voltage play in electroplating? (October 16)

• Zinc Electroplating with vinegar and salt (October 15)

• Sodium Hydroxide: How to make to 0.5 M strength (October 11)

• What chemical heats up when mixed with water and is safe to drink? (July 30)

• Building a really cheap electric arc furnace (July 12) open Q.

• County trying to make me get gas insurance open Q. (December 1)

• Cleaning Dirilyte Gold-tone Flatware open Q. (November 29)

• Need alternate to poly vinyl alcohol fiber for concrete open Q. (November 28)

• Identifying rings: Marking system for rings (November 12) open Q.

• Repair of barber chairs (October 13) open Q.

• Cost and availability of iridium (October 21)

• Hanson Van-Winkle Munning (H-VW-M) memories & memorabilia (October 16)

• Coating tables and bar tops with thick clear pourable plastic (October 9) open Q.

• Best pipe for natural gas lines: Copper vs. steel, plastic, CSST, etc. (October 5) open Q.

• Strong welding fumes in bathroom (September 27) open Q.

• Sedgwick Residential Elevators Parts and Maintenance RFQ Granite City Illinois (August 19)

• Accidentally Swallowing Sodium Hypochlorite during root canal (July 30)

• Hazmat transportation requirements & exclusions (July 21)

• Drawn platinum wire as a hinge pin on bracelets & earrings (July 15) open Q.

• Markings indicating real gold on jewelry (July 12) open Q.