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curated with aloha by
ted_yosem
Ted Mooney, P.E. RET
- Pine Beach, NJ
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  Click/tap ⇩ to a category or just scroll on down ...

 0. Choosing a Finish (corrosion, compatibility)
  1. Preparing the part (mech. prepchem. pretreatmasking & racking)
    2. Metallic Finishing (stainless & titaniumanodizing & light metalselectroplatingelectroless platingPVD & vacuum processesgalvanizingbluing/black oxideother 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, around homeresearch, thesisK-12 scienceArtists' Corner)
              7. Off topic but interesting

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0. Choosing a finish, corrosion

61767. Looking for the hardest, unscratchable finish for jewelry RFQ: Idaho - October 31

12117. Deposition of Aluminum onto Steel then Anodizing - October 30

24110. PVDF / Kynar® vs. Powder coating - October 29

27702. Corrosion of silver caused by ZDDP (zinc based lubricant additives) - October 28

61760. Zinc Plate vs E-Coat - October 22

22143. 316 Stainless Shaft Gets Grooved by Radial Seals - September 25

45129. Anodizing vs. Powder Coating of Aluminum? - August 28

61705. Matching Finishes between Aluminium and Copper Parts - August 24

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1. Preparation

1a. MECH PREP topics: "Grinding, polishing, vibratory finishing, buffing, honing"

61723. Mirror polishing very small hardened steel components - September 25

61715. Shot blasting for acidic electroplating - August 21

61708. 61708 Spots on steel parts from tumbling - August 19

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1b. CHEM PREP topics: "Cleaning, pickling, etching, phosphatizing, activation"

61755. Anodic Electrocleaning vs electrolysis of rust - October 16

61745. Problem aluminum phosphating mild steel - October 11

  0960. Black impression after zinc phosphate vipInquirer often helps others, so especially deserves our help - September 23

61691. Zinc Phosphate - Coating Continuity Problem 2nd Request - September 23

53095. What is the best frequency range (28-40 HZ) for ultrasonic wax & degrease removal? - September 17

61728. Which chemicals for heat-treated Monel? - September 9

61707. Effective Replacement of HCl as Pickling Bath - August 19

  9146. Chemical & Electropolishing of Brass: solutions, procedures, references - August 15

133/66. White Stain after Phosphating Die Castings - August 5

61701. Precleaning steel wire before plastic coating at high speed - August 1

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1c. Capping, plugging, masking, taping


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61747. Protective masking for stripping and re-anodizing - October 9

61735. 61735-1i Masking my CZ Shadow for Plating - September 22

27343. Masking for Nickel Plating - September 2

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2. Metallic & inorganic finishes

2a. STAINLESS, TITANIUM, CORROSION-RESISTANT METALS PROCESSING

33504. Anodizing Titanium for Wear Resistance & Anti-Galling - October 18

12146. 12146-3i Refinishing scratched stainless appliances - October 14

  2629. 2629-2i Component burned all the way through from electropolishing - September 24

55376. Pickling & Passivating 410S stainless steel per ASTM A380? - September 9

44070. Durable black coatings for stainless steel - August 28

44070. Durable black coatings for stainless steel - August 19

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

61770. Simultaneous etch-passivation solution for aluminium pretreatment - November 7

61764. Skin products affecting dyed anodizing? - November 1

33883. Problems in Plating on Aluminum (ADC-12) - October 30

61762. Delay between Aluminum Chromate & Powder Coating - October 24

61744. 61744-1i Black Anodize Blemishes & Spots - October 14

61751. Problem dying anodized aluminum green - October 11

61737. 61737-1 Is Discoloration an Etching Problem? - October 11

61726. 61726-1i Black dust on dyed black anodized aluminium - September 28

27990. Anodizing is Flaking Off of 7075 Aluminum Parts - September 28

61700. 61700-1i Need titanium anodizer for multi-color sheets for kitchen cabinets RFQ open to all: London UK - September 25

60068. 60068-2i Aluminum sheet shows stripes after chromate conversion coating - September 23

61736. 61736-1 Affect of water on 6061 anodized aluminum - September 21

617/41. 61731-1i Aluminum certified as the same etches differently - September 18

24236. Epoxy primer not adhering to conversion coated aluminum (failing bend test) - September 9

144/62. 14441-2 Spot type seal check for black anodized aluminum - September 5

51573. 51573-1 Anodizing rectifier & chiller sizing - August 28

42362. What were the two types in the old Mil-C-5541 spec? - August 27

61716. 61716-1i Odd porosity on anodized threads AFTER sealing - August 26

43484. 43484-2i Low Anodizing Thickness in Gap between Plates - August 26

61529. Anodized Aluminium edges not taking dye very well - August 12

  6784. Need 0.5 Ra after Anodizing - August 6

40035. Desmut can't remove black coloration from etching - August 5

61699. Alloy wheels: is chrome plating or anodizing better? - August 1

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2c. ELECTROPLATING and ELECTROFORMING

61768. Cyanide Copper & Stannate Tin Process Questions - October 31

61761. Nickel-Cobalt Electroplating - October 31

61703. 61703-1i Tri-chrome chloride bath stain - October 30

31816. Electroplated gold turns red - October 30

61749. Need parts plated to GM-6164M RFQ: Jackson, MI - October 15

14461. Hard Chrome Plating Peels Off of Inconel - October 14

42447. Egg Albumin Is Staining Nickel Electroforms - October 13

61752. 61752-1a Cyanide copper plating on zinc diecast - October 13

61748. Purple Color on Filter of Gold Cyanide Plating Bath - October 9

61740. Can We Chrome Plate Super Duplex S32760 - October 9

61686. Zinc Plating Peels Off Stainless Steel During Crimping Process - October 9

55225. 55225-3i Alkaline zinc plating problem: Black dots/spots - October 8

12879. 12879-1i Rack mark / jig mark problems in electroplating - October 8

49009. Chrome Bath Help: Chrome to Acid Ratio - October 7

34023. Nickel-Chrome plating on Brass Problems - September 29

61720. 61720-2i Hard Chrome VI plating throwing power problem vipInquirer often helps others, so especially deserves our help - September 23

61615. 61615-1i Zinc plating with blue passivation is yellowish at holes - September 23

61603. Zinc Plating has white & red rust without a cause - September 23

13356. Zinc Plating of 12L14 Leaded Steel - September 23

61738. Acid Zinc Plating Bath White Appearance - September 21

61734. Cleaning Porous Pot Cathodes - There's gotta be a better way! vipInquirer often helps others, so especially deserves our help - September 17

59181. Need Electroplating on 3D Printed Jewelry RFQ: San Diego, CA - September 17

61729. 61729-1i Is This a Chrome Plating Defect? - September 17

12243. 12243-1i Black Spots when Tin Plating Brass - September 9

61725. Hard chromium plating rate is way low vipInquirer often helps others, so especially deserves our help - September 8

61722. Lead plating of umbrella wires/tubes - September 7

17311. How to do copper plating on aluminum roller? - September 5

52602. Grayish black spots over time in zinc plating - August 29

61717. Separating copper and nickel for optics - August 28

61713. Accidentally Put Dechrome in Chrome Plating Tank - August 21

61710. Fluoborate Copper plating process - August 21

61709. Plating blisters observed on tin finish after annealing - August 21

61702. 61702-1i Zinc-Nickel Plating -- Dark Deposit in LCD Area - August 5

  1503. Platinum Plating: How to Determine Replenishment - August 3

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

61763. Electroless nickel plating: white marks - October 31

34541. Electroless Nickel with PTFE Plating Problems - September 9

61724. Silver mirroring puddles on glass, oxidizes at the edges - September 8

61711. Need Cosmichrome in California RFQ: California - August 21

61608. Electroless copper plating onto wax - August 1

53623. Electroless Plating onto LCP Engineering Plastic - August 1

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

  7846. PVD coatings: color control Q&A's, Problems & Solutions - August 26

28527. Vacuum Metallizing Gets Hazing as soon as Top Coated - August 5

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2f. GALVANIZING, ALUMINIZING, HOT TIN DIPPING

61743. 61743-1i Galvanizing Vats Overheated ... Need supplies, lab equipment, etc. RFQ: Angola - October 13

61741. Agitation of Galvanizing Flux vipInquirer often helps others, so especially deserves our help - September 28

45309. 45309-1i White spots left by coolants on galvanized steel - August 19

61698. Planning a small HDG plant - August 18

38205. Galvanizing problem: Excessive aluminum in zinc - August 12

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2g. BLACK OXIDE, BLUING, COLORING, PATINAS

11776. Standards for Oiling of Black Oxided Parts - October 15

36214. 36214-1i Formula for cold blackening / cold black oxide - October 6

  1150. 1150-1i How to Get Clear Coat Look from Gun Bluing? - August 3

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

28621. Geomet 750 Hp galvanizing - August 6

55366. Ferritic Nitrocarburizing has red color to it? - June 15

52675. Process Comparison for Tufftriding and Nitriding - March 20

40139. Rust spots on pickled coil after a few days - September 1



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

3a. ELECTROPAINT PRIMING, AUTOPHORETIC COATINGS



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3b. POWDER COATING

52455. Actual costing of powder coating in India - October 6

61704. Powder Coating on Zinc Plating with White Rust - August 20

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

  5418. Clear Coating Black Oxided Stainless Steel? - October 30

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

61730. Epoxy ink fisheyeing on TGIC-polyester powder coating - September 10

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4. POST-TREATMENTS

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

38577. Need Iridite 17p RFQ: California - September 7

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

26968. Properties of 2024 T351 - August 13

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4c. STRIPPING, REWORKS, ETC.

adv. metalx

11499. Stripping TiN (Titanium Nitride) Coating from Titanium - October 31

61754. Zinc Phosphate stripping for coating weight - October 13

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5. SUPPORTING ISSUES

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

  2183. Can you reliably measure nitric acid concentration with specific gravity gauge? - October 13

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5b. WASTE & WASTEWATER TREATMENT, POLLUTION CONTROL

61746. Determining if WWT sludge is hazardous? - October 9

12375. Remove Copper from Plating Waste - September 23

61714. Sludge from ETP plant - August 21

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

20858. Toxicity of nickel silver punch bowl - November 1

40657. Inhaled fumes from Bleach and C.L.R. accidentally mixed - September 20

61727. Popping Popcorn in Galvanized Buckets -- is it safe? - September 8

32977. Diatomaceous Earth and Shellfish Allergies? - August 21

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5d. PLANT & PROCESS ENGINEERING, CONSTRUCTION

61757. Ideas for heating an alkaline zinc bath - October 21

11465. Sludge buildup on heating coils in phosphating tank - October 10

123/73. Zinc oxide production by French process? - September 19

617/33. Heating Chrome tanks with Hot Water in Lieu of Steam - September 16

61721. Titanium Grade for Aluminum Anodizing Jigs - September 7

43515. Air Agitation of HCl Pickle Tank - August 14

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

61769. ASTM B700, Type II, Grade D, Class N - October 31

61753. What is Phosphate Treatment 5.1.3.3 from spec 1.9.3? - October 30

61758. Did Wahl Clippers Have Cadmium Plating in the 1970s? - October 21

61632. Does MIL-C-5541 forbid a "Do Not Etch" instruction? - September 17

42362. MIL-C-5541 Chemical Conversion Coat -- Legacy Q&A's - August 26

34214. MIL-DTL-5541 Adhesion tape testing - August 26

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

61766. What is Black Luster® Finish for Fasteners - October 31

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5g. MOSTLY METALLURGY; Heat Treatment



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5h. PRECIOUS METAL RECOVERY

33616. Gold Recovery for Dummies - September 28

27814. How to Recover Platinum from Catalytic Converters - August 2

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6. NON-INDUSTRIAL ISSUES

Hobbyists, DIY, Around Home

33956. How to darken aluminum. Want golden yellow look on aluminum - November 7

20240. 20240-6a Penny isn't copper color - what do I have? - October 29

18519. Cleaning & polishing gold plated flatware - October 24

61756. Anodizing aluminum: dye is splotchy - October 21

28963. What could be causing the pitting and corroding to chrome fixtures - October 8

  2662. Preserving heat coloring of copper when clear coating - October 6

44380. Nickel plating, how much SLS for wetting agent? - October 6

30186. Lime-Away Damaged Stainless Steel Sink - September 19

33143. Stiffel Lamps: need screws that hold laurel leaves - September 10

22903. Ospho prep left tacky film - September 8

61718. 61718-1i Barbell discolored in storage - September 2

19105. Found a silver penny - August 29

16304. 16304-1i Need 29 Emtek Brass Door Knobs Refinished RFQ open to all: Texas - August 28

38628. Gold plating of lead - August 28

12841. Arcing, Popping & Hydrogen "Explosions" in Plating - August 27

38137. How to Paint Bathtub Jets - August 19

37205. Sterling silver vs. silver plate -- How to tell? - August 11

10664. Touching up powder coated aluminum outdoor furniture (Tropitone) - August 10

55951. Home nickel plating with vinegar and salt - August 1

  8575. Remove Water Stain from Teak - August 1

60191. Restoring black exterior door hardware - August 3

16699. Want Geneva Metal Kitchen Cabinets RFQ open to all: New York - August 2

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

61739. Electroplating V, Zr and Ti - September 28

61719. Electroplating: Role of a chemist - September 10

28889. Measuring the pH of air - August 24

61712. Galvanic Issues with Nickel-Plated Aluminum vs. Stainless? - August 21

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



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6d. The Artists' Corner

61750. 61750-1 Forcing a white patina on zinc for watch dials - October 11

24061. Finish for Bare Steel -- linseed oil? - August 10

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7. DRIFTED OFF FINISHING, BUT INTERESTING :-)

61765. Is Spirits of Nitre or Paregoric good for your nerves? - October 31

26801. Solving an electrolysis problem in home plumbing - October 25

29370. 29370-43i 14K Diamond Ring: info please. - October 14

  2259. High Temperature Adhesive for Mica to Silicone Rubber - September 23

23897. 23897-12i Identify this unique lamp - August 18

61706. 61706-1i Kitchen Floor Stained by Glue Trap - August 18

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