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   Click/tap anywhere in this box --
 0. Choosing a Finish (corrosion, compatibility)
  1. Preparing the part (mech. prepchem. pretreatmasking & racking)
    2. Metallic Finishing (stainless & titaniumanodizing & light metalselectroplatingelectroless platingPVD & vacuum processesgalvanizingbluingother inorganic processes)
      3. Organic Finishing (CED, electrocoatpowder coatinglacquers, clearcoatspainting, printing, adhesives)
        4. Post-treatments (chemical post-treatsbaking, soldering, dryingstripping & reworks)
          5. Supporting Issues (analysis, lab, QA/QCwater & wastesafety, emissionsplant/process engrg.specs, books, statslingometallurgyprecious metal recovery)

            6. NON-industrial (hobbyists, DIY, around homeresearch, thesisK-12 scienceArtists' Corner)
              7. NOT Metal Finishing (off topic but interesting)

0. CORROSION, COMPATIBILITY, CHOOSING A FINISH . . .

• Galvanize vs. Galvanneal vs. E-coat vs. Powder open Q. - September 30

• Powder Coating vs. Liquid Paint for Outdoor Plater - September 22

• Coating or Finish for ADC12 for Sliding Wear Resistance open Q. - September 20

• 202 SS or 304 SS rooftop HVAC equipment - September 6

• Copper vs Stainless steel tubing for vacuum equipment open Q. - August 20

• Max. Temp for plated silver Thanks! Resolved :-) - July 22

• Powder Coating vs. Liquid Paint - July 21

• Chemical resistance of nickel plating - July 18

• Which stainless steels are Magnetic - July 2

• Need Chicago screws in 3 colors RFQ Krakow, Poland - June 17

61464-2i Coating for Spillway Gate Chains open Q. - June 16

• Anti-corrosion coatings for Railway Track open Q. - June 13

49101-1 Galvanic Compatibility of Aluminum & Stainless Steel - June 13

27752-1i Why don't air conditioner condensers suffer galvanic corrosion from aluminum fins on copper tubing? - June 6

• Galvanic compatibility of aluminum guards on copper gutters open Q. - June 3

See more threads about "Corrosion, Compatibility, Choosing a Finish"



1. PREPARATION . . .

1a. MECHANICAL PREP [GRINDING, POLISHING, VIBRATORY FINISHING, BUFFING, HONING]

• Grinding HVOF coatings open Q. - August 14

• Grinding hard Chrome with grinding oil vs water miscible open Q. - July 18

• Formula for polishing and buffing compounds - July 16

• Very High Bond tape doesn't stick to mirror polished stainless steel - June 21

• Is there any Roughness Standard under N1 / Ra 0.025 ? open Q. - May 24

• What VDI Finish is required for light pipes? open Q. - May 12

• How to dull a stainless steel finish - May 9

• Need to do Deburring of Titanium RFQ San Luis Obispo CA - April 27

• Problems with stainless steel cut wire media in magnetic tumbler Thanks! Resolved :-) - April 13

See more threads about "Mechanical Prep [grinding, polishing, vibratory finishing, buffing, honing]"


1b. PRETREATMENTS [CLEANING, PICKLING, ETCHING, PHOSPHATIZING, ACTIVATION]

• Bright dip process, copper parts brightening open Q. - September 14

• Descaling of CR and HR Mig welding in preparation for plating open Q. - September 5

• Chemical to clean weld discoloration from carbon steel? open Q. - September 5

• Temperature of Surface Activation for Phosphating? open Q. - - August 16

• Oversize bore developed during phosphating open Q. - August 6

• Manganese phosphate coating: issues and answers open Q. - July 26

Zinc Phosphate coating problems & issues on aluminum open Q. - July 18

• Additives to Anodic Cleaning Solutions - July 12

8164 Sludge Issues in Zinc Phosphating - July 4

• Electrolytic cleaning: anode to cathode ratio - June 3

• Mn phosphating formula for couplings for pipes & treads open Q. - May 29

• Alternatives to Phosphating open Q. - May 27

13366-7i Zinc Phosphating: Yellow Stain only on GI sheets open Q. - May 27

• Want to make alkaline ball burnishing compound open Q. - May 23

• Can't phosphate high carbon steel open Q. - May 23

• Bright dip for Fe-Cr-Al Alloy wire? open Q. - May 16

See more threads about "Pretreatments [Cleaning, Pickling, Etching, Phosphatizing, Activation]"


1c. MASKING, RACKING, TAPING, PLUGGING, PHOTOSENSITIVE MASKS

adv. maskcoat banner 

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

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

• How to mask glass bangles for PVD coating open Q. - June 18

3836-2i Tape is causing Anodizing defects - May 12

See more threads about "Masking, Racking, Taping, Plugging, Photosensitive Masks"



2. METALLIC & INORGANIC FINISHING . . .

2a. STAINLESS STEEL & TITANIUM PROCESSING

49030-2i Electrochemical De-burring/Grinding of Micro Surgical Knife open Q. - September 19

• Medical Implant Boil Test - September 19

• Ratio of phosphoric & sulfuric acid for electropolishing open Q. - September 14

electropolishing problem 55467-4i Electropolishing defect in small area open Q. 2nd Request - September 12

• Hydrofluoric acid vs. ammonium-bifluoride in cleaning & pickling - September 5

• Passivating a part with selective tungsten carbide coating on it open Q. - August 26

• Chemical/Electro polishing of stainless steel - August 21

• Anodizing titanium black in color open Q. - August 16

• Electrical Properties of Passivated Stainless Steel - July 20

• Activation of stainless steel for plating open Q. - July 8

5422-6i Dark frosty cloud dull finish in electropolishing open Q. - July 3

56202-4i Stainless steel passivation problem: color inconsistent - June 28

• Stainless Passivation Temperature Ranges - Why is 90-120 °F excluded? - June 28

33504-1i Titanium galling & anodize/oxidize wear resistance - June 28

• Electropolishing 304 stainless steel, or alternatives to it - June 21

19226-4i Need titanium bolts & washers blackened RFQ: Tucson AZ - June 9

See more threads about "Stainless Steel & Titanium processing"



2b. ANODIZING AND LIGHT METAL TREATMENTS (Aluminum, Magnesium)

• "Clear" Anodize on 6061 is Champagne, not Clear open Q. - October 5

• Need Bulk Anodising Service (or Setup) RFQ: Hungary - September 22

57881-4i Inconsistent colour change in anodising; grainy & uneven color - September 22

• Anodize Aluminum Nickel Bronze? Thanks! Resolved :-) - September 20

• White spots on 2000/7000 series aluminum only after sealing - September 19

• Type III hard anodizing and Taber Abrasion testing - September 19

• Iridite 14-2 pH Control & Maintenance open Q. - September 17

• Anodized aluminum in deionized water - September 16

• Anodizing for Electrical Resistance / Dielectric open Q. - September 9

• Aluminium corrosion and sodium stannate open Q. - August 16

• Anodizing current stuck at 1/4 of what it should be open Q. - August 6

• Tin plating on Aluminum -- is intermediate layer of copper needed? - July 29

• Alkaline etch of aluminium prior to powder coating Thanks! Resolved :-) - July 27

• Anodizing on reflectors - July 23

• Spalling of sulphuric acid anodizing open Q. - July 23

• Remove dye but not electrocoloring from anodized aluminum open Q. - July 20

44945-1i White Powder/Salts on Anodized Aluminum open Q.

• 7075-T6 Poor anodising appearance related to minor differences in composition? - June 23

• Need Phosphoric acid anodize ASTM-D-9399 RFQ: Thailand - June 17

• Discoloration of MIL-5541 Alodine - June 13

• Can chem-film resist ultrasonic cleaning? - June 12

• Problems with Alodine/Iridite/Chem-film and Blind Holes - June 9

• Salt spray test hours for anodized aluminum - June 3

• Aluminum Alloy Rotogravure Cylinder Problems & Solutions open Q. - June 3

See more threads about "Anodizing & Light Metal treatments"


  

2c. ELECTROPLATING and ELECTROFORMING

• Brass Plating not sticking to underlying nickel plating - October 5

• Plating zinc diecast (Zamak-3): Process sequence? open Q. - September 29

• Zinc-plating appearance problems (white, powdery, rough surface) open Q. - September 29

• Alkaline Zinc plating: How can caustic & zinc concentrations vary independently? open Q. - September 24

• Q&A on Silver plating of flatware, serving platters, etc. open Q. - September 18

4996-4i Really bad adhesion and lack of shine in Hard Chrome plating - September 16

• White and black rust on zinc plating after salt spray test open Q. - September 13

• Black Chrome Plating - September 9

9144-4i Hard Chrome Plating Failures on Hydraulic Cylinders open Q. - September 8

• Electroplating / Electrodeposition of Aluminum - September 7

• Hard chrome plating chip off at chamfer - August 31

• Inconsistent appearance of zinc plated with black chromate parts - August 25

• Is brass plating over silver plating possible? - August 21

• Rubber mixed into my chromium plating solution - August 21

• Best plating process for cabinet handles? open Q. - August 19

• Hard chrome plating has high coefficient of friction, not low open Q. - August 6

• Residue when Drawing a Tinned Copper Wire open Q. - August 4

• Plating time too high in alkaline non-cyanide zinc plating open Q. - July 29

• Precipitating stannic ion from tin bath open Q. - July 29

• How to specify Conductive Black Zinc open Q. - July 28

• Cadmium plating and trivalent chromate - July 27

• Immersion gold plating Q&A's, Problems & Solutions - July 20

17929-2i Nickel plating over copper flash history - July 16

• True that cast iron can't be Zinc Plated? open Q. - July 16

• Copper plating on Inconel adhesion problem open Q. - July 15

• Discoloration of bright acid tin plating - July 12

• Platinised titanium (or niobium) anodes for hard chrome plating? open Q. - July 12

• Effect of Temperature on Alkaline Zinc Plating Operation - July 4

See more threads about "Electroplating & Electroforming"


2d. ELECTROLESS PLATING, PLATING ON PLASTICS, IMMERSION PLATING, CHROME-LOOK SPRAYS, LIQUID METAL COATINGS

• Palladium activation & Plating on Plastic - October 1

• Heat treatment of Electroless Nickel Plating open Q. - September 23

• 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

• Electroless nickel-boron plating open Q. - August 9

• Immersion gold plating vs. electroless gold plating - July 9

• EN Plating on Aluminum shrunk the parts but increased hole diameters - July 4

• 'Contact' plating questions open Q. - June 21

• Stability Problems with Electroless Palladium Solution open Q. - August 7

• Heat treatment of Electroless Nickel for 400-500 Vickers - June 6

• Poor adhesion of Electroless Nickel Plating onto steel - June 2

• Electroless Nickel Plating for wet sour service open Q. - June 2

• Electroless nickel plating is turning black, tarnishing open Q. - May 2

• Chrome plating peels off of ABS+PC - April 5

See more threads about "Electroless, POP, Immersion plating, Chrome-look sprays, Liquid metal coatings"



2e. PVD, CVD, ION IMPLANTATION, VACUUM PROCESSES

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

7846-4i PVD coatings: color control - July 22

• Masking in PVD process open Q. - March 25

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

50847-1i Diamond Like Carbon (DLC) Coating Coming Off After Steam Autoclave - March 16

• Pinholes in base coat for vacuum metallizing on ABS (February 7)



2f. GALVANIZING, ALUMINIZING, HOT TIN DIPPING

• 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

41367-1i Zinc consumption control in hot dip galvanizing - August 31

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

7666-1ext Difference between G60U and G60UL? - August 20

• Hot dip galvanizing: what is reasonable dross & ash material loss? spanish open Q. - August 19

• How to reduce Galvalume dross generation open Q. - August 12

56867-10i Spotting, Blackening of Hot Dip Galvanized Fasteners - August 11

• Pickling/galvanizing 304 stainless steel - July 9

• Need re-galvanizing of metal shelving RFQ Limpopo, So. Africa - July 9

• Lifespan of galvanized sheet metal? - June 24

• Continuous Sheet Galvanizing: wrinkling/creases/heat buckling problem open Q. - June 16

• Some Galvalume Panels Are Turning Black open Q. - June 8

• Types of zinc used for galvanizing: PWZ vs.GOB for solar profiles - June 2

• Surfactants used in preflux and blanket flux Thanks! Resolved :-) - May 30

• Spinning and rolling to clean threads after galvanizing - May 27

57163-6i Galvanizing defects: black patches open Q. - May 20

• What is an Ash Box (in Hot Dip Galvanizing) - April 24

See more threads about "Galvanizing, Aluminizing, Hot tin dipping"



2g. BLACK OXIDE, BLUING, COLORING, PATINAS, NITRIDING

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

• Black oxide is salmon colored. Is copper the problem? - September 19

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

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

61453-1i Rust on black oxide parts open Q. - June 12

• Black oxide problems on 4340 steel open Q. - May 13

• Steam Homo Treatment vs Black Oxide Treatment - April 6

• Black oxiding of hardened steel is brown open Q. - March 3



2h. OTHER INORGANIC FINISHING: Mechanical Plating, QPQ, Metal Spray, Zinc-rich Dip-Spin Coatings, Sherardizing, etc.



3. ORGANIC FINISHING [PAINT, POWDER COATING] . . .

3a. ELECTROPAINT PRIMING, AUTOPHORETIC COATINGS

45618-1i E-coating over Zinc or Zinc Cobalt Plating -- Problems & Solutions - September 27

• Water spots & water or paint flow marks after curing - July 16

32574-9i Chalky, ashy CED (cathodic electrodeposition) coating - July 12

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

• Random adhesion failure in Electrodeposition coating open Q. - April 15



3b. POWDER COATING

50530-2i Powder coating burns during cutting & slotting of profiles - September 18

• Blisters/ Peeling of Powder Coating on Zinc Plating open Q. - June 23

• Powder Coating Galvanized Steel open Q. - May 17

1618-1i 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

• Powder coat adhesion problem on zinc plate - February 20

• Powder coating on cast iron calipers open Q. (February 3)



3c. LACQUERS, CLEAR COATS, ELECTROPHORETIC TINTING, ANTI-TARNISH

• Clear coating silicon bronze open Q. - September 27

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

• Clearcoat for polished brass & copper bathtubs open Q. - June 27

45328-1i Water spot problem in CED open Q. - April 4

• Need electrophoretic lacquer on alligator clips RFQ Akron OH (February 7)



3d. PAINTING, PRINTING, ADHESIVES AND OTHER ORGANIC COATINGS

• Scratch marks are appearing in ABS Parts after painting open Q. - October 2

35114-1i 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

31579-1i Eliminate Pin Holes on Painted Wheels open Q. - June 27

• Plastisol Mixing Formulas and Improvements open Q. - June 6

• How to produce plastisol ink, pvc ink, and water based ink - May 29

• Paint moisture problem open Q. - May 14

• Hologram-like defect in automotive paint - April 25

• "Passivating" carbon steel using Citric Acid open Q. - April 12

• Zinc rich primers in submerged service on steel ships open Q. - March 20

See more threads about "Painting, Printing, Adhesives and Other organic coatings"



4. POST-TREATMENTS

4a. CHEMICAL POST-TREATMENTS [CHROMATE CONVERSION COATINGS, RUST PREVENTATIVES, PATINAS, COLORIZING]

• Post-dip to improve color of imitation gold plating? open Q. - September 17

• Yellow/gold Iridite leached to clear - August 23

• Answer to why Black Chromate turns green - July 15

• Is Zinc Plating with Chromate Conversion Coating RoHS compliant? open Q. - July 9

• 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



4b. BAKING AND NON-CHEMICAL POST-TREATMENTS [HYDROGEN EMBRITTLEMENT AND DE-EMBRITTLEMENT, ANNEALING, WHISKERS, SOLDERING, REFLOWING]

• Chrome plating and Hydrogen Embrittlement Relief - September 9

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



4c. STRIPPING, REWORKS, ETC.

11955-4i Can't strip chrome from copper gravure cylinder open Q. - October 3

• Removing rhodium plating electrolytically - September 8

11499-1i Removing TiN (Titanium Nitride) coatings - August 19

• How to remove conversion coating used as maskant when anodizing? - August 6

• Cleaning Tin Stain from Nickel-plated Aluminum open Q. - July 29

• Chemical to remove nickel plating from silver or brass jewelry? - May 12

• How to remove gold from copper? open Q. - March 23

• Stripping tin from copper (tin resist on PCB won't maintain normality) - February 17

• Stripping Nickel From Invar open Q. (February 11)

• Stripping nickel electroplate from Kovar open Q. (February 1)



5. SUPPORTING ISSUES

5a. ANALYSIS, LAB TECHNIQUE, Q.A., SALT SPRAY TESTING

• Determine % Nitric Acid. Titration? - September 29

• Analyze for iron content in hydrochloric acid open Q. - August 17

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

• Distilled water good enough for analysis? - August 14

• Simple test for presence of clear chromate - July 27

• Soak Cleaner / Degreaser: Alkalinity test & oil content - July 27

• Thickness measurement of gold & EN on copper open Q. - June 7

• Analyze Chrome Plating Bath; Determine Sulfates open Q. - June 6

• Chem filmed panels fail salt spray test - May 30

• Platinized titanium anodes for electroplating: buying, making, testing open Q. - May 29

• Analyze cobalt and nickel metal separately open Q. - May 26

• Making sulfuric acid anodizing solution Thanks! Resolved :-) - May 13

• Measuring equipment for silver plating brightener? open Q. - April 18

• Method to identify tin plating versus nickel plating - April 12

See more threads about "Analysis, Lab technique, QA, Salt spray testing"



5b. WASTE & WASTEWATER TREATMENT, POLLUTION CONTROL

• 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

61445-1i 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



5c. SAFETY ISSUES, EMISSIONS, TOXICITY, ENVIRONMENTAL IMPACTS

• 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

• Mercury Poisoning from thermometers open Q. - May 31

• Metallic taste when wearing copper bracelet open Q. - May 24

• Is chrome plated drain cover poisoning my cat? - May 15

• Chromate poisoning from concrete work - April 10

• Fumes from Nichrome wire? - March 23

• I'm allergic to gold - March 12

54906-1i Fumes from stainless pot left on burner sickened me - February 25



5d. PLANT & PROCESS ENGINEERING, CONSTRUCTION

• Best way to remove lining from Chrome tank open Q. - September 29

• 2% Sulphuric Acid in 316SS tank is turning green & smutty during Aluminium pickling open Q. - September 29

• 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

• Maximum safe watt density for zinc plating solution heating - May 10

• Passivating electroless nickel tanks; anodic protection - May 3

• Heating and Cooling of Chrome Plating Tanks RFQ: SP, Brazil - May 2

• Ideal Sequence for Alkaline Zinc Plating - May 2

• Hard Anodize Tank Design - March 25 vipInquirer often helps others, so especially deserves our help

• Sodium Dichromate Seal Tank Liner Materials and a compatible filter (February 9) vipInquirer often helps others, so especially deserves our help

• Water Evaporation Estimates at Sub-freezing Temperature (February 3)



5e. QUESTIONS ABOUT SOFTWARE, SPECS, BOOKS, EDUCATION, INDUSTRY STATS, ETC.

• MIL-DTL-5541 Class 1A vs. Class 3 open Q. - September 20

• 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

• Galvanic Corrosion Test for Titanium Anodize (AMS 2487) open Q. (February 16)

• Looking for "Theory and Practice of Pulse Plating" (February 15)

• Zirconium Coating Daimler Standard open Q. (February 6)



5f. W...W...W...WORD OF THE WEEK

• 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



5g. MOSTLY METALLURGY; Heat Treatment

• How to decarbonize the surface of high carbon steel open Q. - September 20

• 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

• 316L Stainless is too spring-y open Q. - March 4

• Silver brazing flies out of gap between copper surface and nickel plated surface open Q. (February 9)

• Pinholes / blowholes in cast aluminum components open Q. (February 1)



5h. PRECIOUS METAL RECOVERY

• Is this ore/rock Platinum, Palladium & Rhodium? - September 27

• Refining of silver chloride to silver metal open Q. - July 28

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

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

• Why is broken catalytic converter honeycomb worthless as scrap? open Q. - May 21

• 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

• Strip and recover silver from silver plated tableware open Q. - March 8

• Gold recovery with zinc - February 21



6. NON-INDUSTRIAL ISSUES

Hobbyists, DIY, Around Home

• Cleaning an old copper kettle for apple butter - October 5

• Painting or plating magnesium alloy wheels - October 3

• Cause of black mark on skin from gold jewelry open Q. - October 1

61491-1i Gold plated copper sneaker caps - September 29

• Can't get part to anodize! open Q. - September 29

• Improving adhesion of paint to polypropylene - September 27

• Dried-on Brasso removal - September 27

• Restore Silver damaged by bleach - September 27

8999-3i Home made Hull Cell and Acid Copper Plating additives - September 23

• Mineral spirits to clean rancid oil off my teak dining table? open Q. - September 19

• QS8 Connector Issues / Plating - September 14

• Problems and solutions about aluminum chain-mail - September 12

16032-3i Cleaning/restoring vintage tin humpback trunk - September 12

• Ashes from bonfire effect on paint - September 12

• Rust finish for galvanized tin? - September 9

blue tub is white when dry Blue bathtub turns white only when dry - September 6

• Remove water stains / water marks from Corten - September 6

• 1977 Silver Penny - September 6

26107-3i Restoring dark metal finishes on old Craftsman houses and farm houses - September 3

• Removing protective plastic film adhesive residue - August 31

• Brass is pink from improper cleaning - August 31

• Cold Rust Bluing Methods open Q. - August 21

• How to remove oxide from our terminals? open Q. - August 19

• Dirilyte gold-tone flatware: Cleaning / Polishing / Storing - August 16

• Wood stove: Can't find high temperature enamel in right color open Q. - August 16

• Removing Teflon non-stick coating from Visions and Pyrex Glass Cookware open Q. - August 16

23481-1i Polished Aluminum Clearcoat Secret - August 16

• Nickel Plating Appearance in the Late 19th Century open Q. - August 16

• What will take tarn-x stains off a stainless sink? - August 16

• Why Noxon Brass and Silver Polish (and Quick Dip) Disappeared - August 14

• Seasoning & Restoring Cast Iron Cookware - August 14

• Dishwasher ruined shiny aluminum -- How to fix it? - August 6

• Need to find Hawes Lemon Oil - August 4

• Problems and solutions in copper electroforming - July 29

• How to Fix mercury damage to gold jewelry - July 29

• Could ashes from our bonfire have ruined the paint on neighbor's car? - July 27

• Sulfur springs turned my silver jewelry black. How to fix? - July 24

30186-2i Lime-Away damaged stainless steel sink - July 24

• Acid copper sulphate plating problem: copper concentration is growing - July 23

27662 Cleaning corroded pennies and coins - July 18

• Questions & Answers about Zinc or galvanized countertops open Q. - July 9

• 18K gold ring turned my finger black - July 8

• Kenrick 19th century cast iron open Q. - July 4

• Refinishing bronze table legs - July 4

See more threads about "Hobbyists, DIY, Around Home"



6b. RESEARCH, THESIS TOPICS, UNIVERSITY & POST-GRAD STUDENTS

Copper Plating on Sputtered Gold Electroplating Copper onto PVD/Sputtered Gold Substrate - September 8

61452-1i Recovery of Metallic Magnesium from Magnesium Citrate. Is It Possible? - June 13

• Electrolytic Passivation of Nickel Plating - June 7

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

• White Bronze Plating, an alternative to nickel? - May 30

• Acid Zinc Plating Brightener Q&A open Q. - May 14

• Electroplating Copper Chromium Alloy Deposit? - May 13

• Reaction between hot aqua regia and sulphur open Q. - April 1

• Ni-W coatings with high W content crack open Q. - March 29

• Zinc stopped plating out when voltage got high - March 28

• Ruthenium use in iPhone open Q. - March 25

• Electroplating of copper onto sputtered gold open Q. - March 22

See more threads about "Research, Thesis topics, University & Post-grad students"



6c. K-12 Science Projects, Grammar & High School Student Questions

• Rusting in distilled water vs. saltwater - October 3

• 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



6d. The Artists' Corner

53936-1i Long ridges on copper electroform - September 29

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

61479-1i Can't restore bright finish to bare aluminum piece - September 1

41408-8i Painting cast iron fountains / restoring rusty fountains - August 9

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

red spots when bronze casting Dark Reddish Spots when Bronze Casting - June 7

61446-1i What do black spots on aluminum sculpture tell art student? - May 25

61430-1i Strange reaction of copper BB on a bronze sculpture - May 2

47701-1i Protecting Metal Birds in the Tropics - April 23



7. DRIFTED OFF FINISHING, BUT INTERESTING :-)

61489-1i "Living locket" -- any info available? Lock of hair keepsake - September 29

29370-30 Identifying rings and hallmarks: FAS? - September 21

• How to clean conch shells open Q. - September 19

• Taking antique brass bed apart open Q. - September 18

• Crowsfoot with torque wrench. What's the math? - September 16

• How to Restore & Refinish National Cash Registers Thanks! Resolved :-) - September 9

• Looking for a Magnet That Attracts Gold RFQ: Jeffersonville IN - July 9

• 3-D Printing of shelf support inserts for Geneva kitchen cabinets open Q. - September 6

• Phenyl Manufacturing Problems - September 6

• Want to heat homes with chemical energy - August 6

• Muriatic Acid for fiberglass shower/tub - August 6

24359-19i Repair of barber chairs open Q. - July 29

14995-12i Fixing Brown Rusty Water (Excess Iron) in Swimming Pool Water - July 28

• Cast Iron Cook Stoves: Where to find parts and how to restore open Q. - July 27

• WW2 Naval Ship used Silver wiring open Q. - July 24

38809-16i Antique baby carriage restoration open Q. - July 23

• Copper Sulphate as Swimming Pool Algae Remedy? - July 18

32413-1i Sweet Spirits of Nitre - July 12

• How to make bronze / History of bronze - July 2

• Hoyt Metal Co of Great Britain thermometer - July 2

24229-1i Making homemade acid stains for concrete open Q. - June 30

See more threads about "Drifted off Finishing, but Interesting"

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