• Coloring Nickel Plating, like red or blue open Q. - January 26

• Better corrosion resistance: zinc plating or zinc phosphating? - December 19

• Matte black finish for mild steel rivets - December 11

• Galvanic Corrosion between nickel & aluminum open Q. - November 26

• Want black bolts with no oil on them - November 21

• Black finishes for bolts and hardware Q&A - November 17

• Copper weathervane staining aluminum church steeple open Q. - October 26

• SPCC vs. SGCC vs. SECC steel for computer cases open Q. - October 20

• Galvanic Corrosion between Galvanized Steel and Aluminum - October 19

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• Polishing chromoly chandelier - October 30

• Grinding HVOF coatings open Q. - August 14

• Formula for polishing and buffing compounds - July 16

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• Pickling & passivating of welded carbon steel pipe open Q. - January 19

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• Manganese Phosphate coating is uneven, non uniform open Q. - November 26

• Remove rust with muriatic acid (HCl / hydrochloric acid) open Q. - November 23

• Manganese phosphate coating: issues and answers open Q. - November 8

• History of Parco-lubrite, zinc phosphate, and manganese phosphate coatings open Q. - November 1

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• Masking material / method for electroless nickel plating open Q. - July 25

• Etching problems with PCB tin resist open Q. - July 18

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• Removal of Heat Treat Scale from Stainless Steel open Q. - December 13

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• Electrochemical De-burring/Grinding of Micro Surgical Knife - November 21

• Electropolishing defect in small area open Q. - November 17

• Anodizing titanium to green color -- electrolytic pre-etch open Q. - November 14

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• Aluminum anodizing: Constant current vs. controlling the voltage - January 11

• Thickness of Alodine/Iridite/Chemfilm on Aluminum - January 3

• MIL-DTL-5541 Chem film fails humidity test - January 2

• Burning problem in Hard Anodizing of Aluminum open Q. - January 1

• Anodising thickness not being achieved - December 31

• Aluminum Anodizing Color Match Problems - December 22

• Anodizing Discolorization "Leopard Spots" - December 21

• MIL-C5541-Class 3 Question - December 20

• Chromic Acid Anodizing: Parts are too dark open Q. - December 17

• Stains in Electrocolouring of aluminum - December 6

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• What is the Corrosion Life of Nickel Plated Components? - February 3

• Nickel plated stainless steel batteries getting pinholes open Q. - January 30

• Tin plating: how to improve Salt Spray hours? - January 29

• Gold plating rubs right off! - January 28

• Very large black rack marks in Zinc-Nickel Plating - January 26

• Alkaline Zinc Plating Q&A's, Problems & Solutions - January 26

• Plating time too long (acid zinc) - January 16

• Heavy parts chrome plate well; light ones don't open Q. - January 16

• Nickel plating Inconel Q&A: Bumps in low-stress nickel - January 14

• Silver plating delaminates from copper parts but not brass parts - January 10

• Relationship of Plating Thickness to Current/Amperage - January 10

• ISO a Metal Plater with loooooooooong tanks! 2nd Rqst, open to all RFQ South Florida - January 7

• Why is chromium failing? - December 25

• DI water stains Nickel plated surface open Q. - December 23

• Nickel and Gold Plating onto Bronze Workpiece 2nd Rqst - December 19

• Nickel Electroplating is peeling off Stainless Steel - December 19

• RoHS Zinc Plating of Machine fasteners and Bolts - December 14

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• Zinc Plating / Electrogalvanizing Mild Steel Wire - December 12

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• Spray chroming with silver nitrate - January 3

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• Electroless gold plating (autocatalytic) open Q. - September 18

• Composite electroless nickel-PTFE plating open Q. - September 13

• Electroless Nickel Plating of Aluminum without Zincate - September 9

• Barrel plating on plastics/ABS - September 5

• A method for electroless brass plating? - September 3

• Need help with electroless/immersion tin plating open Q. - August 21

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• PVD coatings: color control open Q. - December 7

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• How to get Black PVD finish open Q. - September 2

• Masking in PVD process open Q. - March 25

• Need to patch up the leakage in vacuum chamber open Q. - March 22

• Diamond Like Carbon (DLC) Coating Coming Off After Steam Autoclave - March 16

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• Hot dip galvanizing flux Q & A's - February 4

• Hand re-tinning of copper cooking utensils? open Q. - January 31

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• Want pre-galvanized sheet with 720 hours salt spray resistance - January 19

• Can stainless steel be hot dip galvanized? open Q. - January 9

• Galvanizing flux bath has iron contamination - January 8

• Required Frequency of Zinc Dross Removal - December 30

• Sink roll in hot dip galvanized strip problems - December 20

• Hot-Dip Galvanizing Kettle: how to build or where to buy one RFQ - December 9

• Black/Gray Staining on Batch HDG - November 15

• Temporarily weld/repair Galvanizing Kettle - September 21

• How to detect whether powder coating is on GI vs CRCA? - September 20

• Galvanizing flux bath has low pH & high iron - August 31

• Zinc consumption control in hot dip galvanizing - August 31

• How to reduce bottom dross in hot dip galvanizing line? open Q. - August 31

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• Blackening formulas for steel and cast iron - January 2

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• Which oil BLACK OXIDE finish? open Q. - October 2

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• Cold blackening on SS turns blue over time open Q. - September 6

• Mid temperature blackening smut issue open Q. - June 13

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• Steam Homo Treatment vs Black Oxide Treatment - April 6

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• Need CED coating service in Chennai RFQ Chennai India - June 16

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• Powder Coating Galvanized Steel open Q. - May 17

• Necessity for primer with powder coatings? open Q. - April 19

• How to prevent corrosion of dully powder coated CRCA panels from acid fumes? - March 29

• Clear coating silicon bronze open Q. - September 27

• How to make long lasting Dye Gold Plating on Imitation Jewelry open Q. - September 5

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• Solar Heat Reflective Paint Consultant RFQ London U.K. - December 6

• Q&A on MIL-P-23377 primer - December 6

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• Can You Paint a Car with House Paint? - September 16

• PVC Insulation Coating Blackens Copper Wire & Cable open Q. - August 21

• Help, paint adhesion problem on HDPE open Q. - August 20

• Repairing damaged PVDF Coating open Q. - July 29

• How to make wrinkle paint open Q. - July 20

• Sublimation coating formula for ceramic mugs - July 16

• Need custom tins for liquor company RFQ Jacksonville FL - July 2

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• Post-dip to improve color of imitation gold plating? - December 20

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• Answer to why Black Chromate turns green - July 15

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• Chromate conversion on cadmium not adhering open Q. - March 23

• Generic solution for chromating brass - March 22

• Bright Dipping of Brass: some shop problems open Q. - March 20

• Matte tin turns into bright with reflow open Q. - January 12

• Are tiny solid blobs of tin detrimental to PCB? open Q. - January 4

• Hydrogen Embrittlement and the Lawrence Gauge - November 16

• Chrome plating and Hydrogen Embrittlement Relief - September 9

• How to improve the solderability of tin electroplating? open Q. - July 16

• Stripping Tin / tinplate from Steel open Q. - November 18

• Can sulfuric acid be used to remove nickel plating from aluminum? open Q. - October 26

• What to use as anodize remover/stripper open Q. - October 14

• How to strip chromate from silver plated finish - October 14

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• Analysis of Nitric Acid in the presence of Hydrofluoric Acid open Q. - December 13

• ASTM B117 Salt Fog Test Chamber Operational Q&As, Problems: Salt Spray Woes - December 7

• MIL-DTL-5541 Chromate Conductivity Testing - November 27

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• Test if Alodine 1200 clear was actually done - October 17

• Determine % Nitric Acid. Titration? - September 29

• How to Analyze Resin Impregnation of Aluminum open Q. - August 14

• Distilled water good enough for analysis? - August 14

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• Recovery of copper from electroplating & etching solutions open Q. - January 19

• Recycling of Chrome Stripping solution (HCl) - December 30

• DM System Problem: Poor OBR, short SBA life open Q. - November 20

• TDS vs PPM vs. µS? - October 14

• Trivalent Chromium vs. Hexavalent -- what are the differences? - August 31

• Recycling of chrome sludge open Q. - August 14

• Ferrous Chloride vs. Ferric Chloride for reducing H2S levels open Q. - August 6

• Defects on test panel left in the water - June 2

• Can Trivalent Chromium degrade into Hexavalent Chromium? - May 3

• Dangers of drinking deionized water open Q. - April 19

• Methods for pH measurement in D.I. water - April 15

• Is worn silverware a Health Hazard open Q. - February 2

• Does my silver plated flatware contain lead? open Q. - January 16

• Sick from welding galvanized steel - January 16

• Danger in Cast aluminum cookware? open Q. - December 5

• Yellow zinc hex nuts in arts and crafts projects - November 28

• Safety of hibachi barbecue with yellow zinc screws and damper open Q. - September 22

• Permit requirements for powdercoating - September 13

• PTFE/Teflon Environmental Concerns - September 6

• Boric Acid as Eye Wash open Q. - August 31

• Mixed bleach with acid and inhaled it - August 14

• Safety of Galvanized Steel in home-made DIY smokehouse - July 16

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• Titanium anode baskets get copper buildup in Rochelle Copper Plating - February 3

• Need design assistance on French process zinc oxide furnace So. Africa - January 16

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• 2% Sulphuric Acid in 316SS tank is turning green & smutty during Aluminium pickling - November 15

• Best way to remove lining from Chrome tank - October 14

• Need Anode Baskets for Silver Plating RFQ Watertown TN - September 7

• Materials of construction for pump for zinc phosphate - July 18

• Looking for small custom titanium anode baskets RFQ Guatamala - June 7

• Sludge buildup in phosphating piping - June 3

• Heating/cooling coil material for chrome plating - May 20

• Sodium hypochlorite (bleach) piping problems - May 19

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• International standards for phosphating processes open Q. - February 4

• BAC 5709 and Opening Oven Door to Load More Parts open Q. - December 12

• MIL-DTL-5541 Class 1A vs. Class 3 - October 8

• Phosphatizing standards -- MIL-DTL-16232 - August 9

• Is MIL-PRF-23377 equivalent to BMS10-11? open Q. - August 4

• Meaning of plating spec abbreviation MFzn8S open Q. - June 12

• How to Make Artificial Sweat and Conduct Testing? open Q. - June 2

• Swedish Standard St2 / St3 open Q. - May 2

• MIL-C-5541: Will It Work On Copper - April 13

• Cadmium Plating spec QQ-P-416 and clear chromate - March 23

• Is there such thing as sterling silver plating? open Q. - August 30

• How Did Kitchen Zinc become Sink? open Q. - June 26

• Definition of "passivated" in regards to metal finishing, plating, and stainless steel - March 13

• Problems in Annealing of Copper Wire open Q. - January 26

• Is 6063 aluminum a precipitation hardening alloy? open Q. - January 11

• 316L Stainless is too spring-y - January 3

• How to decarbonize the surface of high carbon steel - December 22

• Does forging create mill scale? open Q. - September 8

• Hardening EN8 / EN9 parts open Q. - August 10

• Hardening EN8 / EN9 parts. Q&A's, Problems & Solutions open Q. - April 1

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• Is this ore/rock Platinum, Palladium & Rhodium? open Q. - December 11

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• Refining of Palladium and making its salt open Q. - July 16

• How to precipitate gold from HAuCl4 solution open Q. - July 12

• Best and Easiest way to refine gold dust open Q. - April 21

• Extracting Silver From Photographic Fixer open Q. - April 18

• Recovery from AP waste solution open Q. - March 8

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• Clear coating to protect rust patina finish - February 2

• Carburetor re-plating / re-coloring open Q. - January 30

• Magnetic, silver-color, 1998 penny open Q. - January 30

• Removing Teflon non-stick coating from Glass Cookware open Q. - January 26

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• Restoring the yellow dichromate finish on automobile carburetors open Q. - January 20

• D-I-Y Yellow gold engagement ring to white gold? open Q. - January 20

• Solving an electrolysis problem in home plumbing open Q. - January 18

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• Chrome redipping for wheel open Q. - January 16

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• Chemical removal/stripping of chrome from bicycle parts open Q. - January 11

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• How To Rust Metal like Jingle Bells & Safety Pins - January 6

• Sealing lightly corroded aluminum engine parts with crude oil open Q. - January 4

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• Electroplating on 3D Printed & Stereolithography (SLA) models open Q. - June 6

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• Why can't we store electricity in water? - June 14

• How many mL of water must be added to 10 grams of NaOH to make a 0.50 molar solution? Thanks! Resolved :-) - May 23

• Can print maker prevent ink discoloration on etching plates? open Q. - December 6

• Long ridges on copper electroform - October 17

• How to clean/repair C. Curtis metal sculpture open Q. - September 7

• Can't restore bright finish to bare aluminum piece - September 1

• Painting cast iron fountains / restoring rusty fountains - August 9

• Archival painting on brass and copper open Q. - July 29

• Dark Reddish Spots when Bronze Casting - June 7

• What do black spots on aluminum sculpture tell art student? - May 25

• Strange reaction of copper BB on a bronze sculpture - May 2

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• Theda Sterling Silver Medals, Crosses, Jewelry Q&A - January 11

• Sedgwick Residential Elevators Parts and Maintenance open Q. - January 10

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• About sweet spirits of nitre - December 31

• National Cash Registers: How to Restore & Refinish - December 20

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• Copper Sulphate as Swimming Pool Algae Remedy? open Q. - October 14

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