Category: "Electroplating & Electroforming"

61694. Hazy white tips on long pins (alkaline zinc plating) - July 31

  2964. What is a Wood's nickel strike? - July 31

61696. Diamond plating on Aluminium - July 30

51179. Alkaline copper plating contaminated with phospho copper - July 22

61683. Cyanide Gold plating Q&A - July 15

61684. Constant current platinum plating -- why does voltage vary? - July 5

61680. Using Zinc Cyanide as Sodium Cyanide Replacement in Cadmium Plating - July 2

11172. Brighteners for acid copper plating - June 21

56121. Sulfamate nickel plating on copper is dull and milky - June 15

56272. Copper plating onto Silver - June 15

61647. Want Consultant for Copper & Silver Barrel Plating on Stainless Steel RFQ open to all: Manila - March 3

15218. Can Sulfur Free Nickel Crowns Replace S-nickel? - May 30

61587. Black stain spots in satin chrome, plus burning - May 28

48074. Hard chrome plating problems 2nd Request- May 27

61662. Stannous sulfate turns brown in storage - May 22

61657. Electro-purification (dummy) methods for electroplating tanks - May 20

33774. Gold plating on sterling silver, Vermeil - May 16

26738. Silver Plating & Brighteners Q&A - May 14

61666. Cast Iron Dies Won't Re-Chrome - May 9

3025. Pitting in acid tin plating - May 6

37167. Nickel plating: Can't Get Enough Thickness - May 6

  2454. Gold potassium cyanide gets cloudy below 3.9 pH - April 13

58336. Cadmium Cyanide Plating is Yellow instead of Olive Drab - April 12

58298. Oil mark issue in satin nickel plating - April 5

  2797. Nickel Striking/plating on stainless steel problems - March 24

52562. Color gold/color gilding: Rose/pink/brown gold plating methods & issues - March 20

55624. Zinc plate steel wire then draw it, or draw it then plate it? - March 20

30106. Zinc plating thickness vs. salt spray resistance - March 10

61645. Classification for evaluating corrosion in salt-laden atmosphere - March 1

  0350. Nickel & Gold Plating peels off of Tungsten-Carbide - March 1

61634. Voltage spikes and amperage drops in Cu-Sn plating - February 27

39520. Copper exposed on parts that are supposed to be nickel - February 26

61640. Spotted cadmium - February 19

40169. Tin plate Blistering - February 19

25163. Expired Lead Frame effect on Plating Quality - February 2

  9144. Scratches on Hydraulic Cylinders: Mechanical Damage or Plating Defects? - February 1

38475. Alkaline Non-Cyanide Zinc accumulates Zinc oxide or other material at bottom of tank - January 29

28127. Alkaline zinc plating thickness - January 28

61621. Blue spot/growth on a silver plated component - January 16

61628. Surface Area Calculations for Rough Castings - January 4

29547. Problems copper plating gravure cylinders open Q. - December 31

29662. The Role of sulfuric Acid in Copper Plating - December 30

26738. Silver Plating brighteners Q&A open Q. - December 22

34440. Formula or recipe of Zinc brightener - December 18

61622. Removing discoloration patches from nickel plated brass - December 13

56583. Repair of hard chromium plated parts open Q. - December 11

50709. Acid Zinc Plating turns gray in 3 months - December 9

61616. Brass Hull Test Panel Cathode Cleaning - December 8

61563. Silver plating with Auxiliary Anodes - December 8

61617. Need silver plating on 13K per year 2" dia x 73" long aluminum bars RFQ open to all: Jackson, MS - December 6

61604. Adhesion No Good for Nickel Plating on Neodymium open Q. - December 1

61612. Zn25 vs ZnNi12 - Expected lifetime for marine indoors open Q. - November 27

25432. Zinc-Nickel Plating and Chromating Problems & Solutions open Q. - November 21

24309. Carbon treating silver plating solution with activated carbon cartridges open Q. - November 21

33386. Roughness in copper-nickel plating on zamak - November 13

  5106. Tin Plated Parts are Turning Black open Q. - November 11

61598. Cadmium Cyanide adhesion issue open Q. - November 8

47026. Chrome plating and coefficient of expansion - November 8

  5101. Want to find an alternative chrome plating process - November 1

61594. Unusual behaviour of thief wire in chrome plating open Q. - October 25

44143. Chrome plated engine valves nodular and peeled in one area open Q. - October 23

10051. Brass plating is tarnishing and turning black open Q. - October 22

39912. Black Passivation and Black Trivalent Plating - October 22

43916. Cyanide spots and stains in brass plating - October 15

27192. Facing issues with air locks! - October 14

28851. Zinc-Nickel Plating very thin in some area of padbolts open Q. - October 14

  2406. It takes an hour to zinc barrel plate in ammonia chloride open Q. - October 11

  6132. Do We Use DuNuöy Ring or Wilhelmy Plate Tensiometer for Chromic Acid? open Q. - October 8

49988. What are these crystals on cadmium plated parts? - October 7

• Nickel plating peeling problem - September 27

• 'Skip' problem when doing black passivation in stainless steel baskets open Q. - September 26

• Formula for Woods Nickel Strike - September 21

• Yellow shade in decorative chrome plating - September 20

• Copper plating staining & oxidation problem, bright dip fails open Q. - September 19

• Nickel adhesion to silicone open Q. - September 7

• Zinc plate rubs off on thumb - September 7

• Chrome plating of zinc die castings -- Problems & Solutions open Q. - August 29

• Preventing Tarnish on Gold Plated Brass open Q. - August 24

• Black spots/patches in acid zinc barrel plating - August 21

• Platinum Plating with P-salt open Q. - August 20

• Black spots on welding cords after Zinc-Nickel plating - August 18

• Gold plating attacked by stainless steel passivation process? - August 17

• Nickel plating cost calculation - August 16

• Want electroforming machine to make gold jewelry open Q. - August 15

• How to remove Zinc contamination from Nickel plating bath - August 5

• Nickel-chrome plating has white patches that grow with time

• Brass anodes are polarizing

• Brass Plating Q&A's, Problems & Issues

• Satin nickel plating problems Q&A

• Cyanide zinc electroplating problems

• Micro Porosity of Substrate a Major Setback for Hard Chroming

• Acceptance criteria after zinc plating and salt spray test

• Nickel plating / striking on stainless steel

• Hydrogen Embrittlement Failure. Details for Chromium Plating

• What is dog bone and what causes it?

• Copper plating hardness is dropping

• Zinc Dust treatment of alkaline zinc plating solution

• Wood's Nickel Strike Bath Analysis & Maintenance

• Silver plating thickness distribution problems

• Surface roughness after hard chrome plating

• Effects of bath contamination in tin plating, limits for metallic impurities?

• White Rust on Zinc Plated Bolts after 19 hrs neutral salt spray

• White Bronze Plating: an alternative to nickel

• Tin plating on Aluminum: copper and tin diffuse together

• Problem in Acid Chloride Zinc Plating: parts get cloudy after a few days

• Acid Copper Plating Problems Q&A

• Pitted zinc-nickel plating

• Alkaline zinc continuous wire plating

• Dull Nickel Plating Bath Q&A, Problems & Solutions

• Copper plating steel grounding (earthing) rods

• Iron Plating problems (Electrodeposition of Iron onto other materials)

• Plating zinc onto stainless steel?

• Formulation for blue nickel plating

• Applying a color onto a Zinc Die Casting

• Understanding Duplex & Triplex Nickel Plating Process

• Sulfite gold plating -- Problems & Solutions, Q&A

• Hard Chrome Plating Failures on Boat Lift Hydraulic Cylinders

• Discoloration and blackish marks on cyanide copper

• Black spots in cyanide copper plating

• Cracks on hard chrome plated spools

• Repair gravure cylinder with brush plated copper

• Plating zinc diecast (Zamak-3): Process sequence?

• Parting/passivation Agents to Keep Electroforms from Sticking to Cathode/mandrels

• Chrome Plating Problems on Gravure Printing Cylinders/Rolls

• Tarnishing of tin plating

• Hydrogen embrittlement in cadmium plating

• Plating conductive microfibers embedded in ABS

• Anode to Cathode Ratio. Nickel Buildup In Bright Nickel Solutions

• Want very dull nickel plating on brass jewellery

• Alkaline Zinc Plating Problem: Delayed Blistering on Steel Parts

• Current required in hard chrome plating?

• Black Zinc-Nickel Plating has poor corrosion resistance

• Chloride Nickel Plating is black and burned.

• Zinc Plating on 12L14 carbon Steel (Blistering & Flaking Problems)

• Small parts coupling together in MSA Sn (Tin Plating) bath

• Nickel plating on aluminum contains phosphorous

• Rough Titanium Cadmium plate

• My acid copper plating bath is very slow

• Nickel plated sockets are cloudy/milky without a copper preplate

• Partial Plating of Chrome on copper base cylinder

• Zinc plating with chromate: is temperature causing the corrosion?

• Platinum plating on silver Q&A Problems & Solutions

• Brighteners used in Silver Plating bath

• Blisters in Nickel Plating after Heat Treatment

• Need Ductility in Nickel Electroplate

• Nickel Carbonate not Dissolving

• Wood's Nickel Strike Bath Analysis & Maintenance

• Brass plating peels off -- Q&A, Problems & Solutions

• Non uniform thickness problem in electroplating

• Gold isn't bright when plating leaded stained glass

• Chrome thickness variations on gravure cylinders open Q. - February 26

• Choosing Plating Rectifier Voltage & Current

• Zinc plating thickness vs. salt spray resistance

• Nickel Electroplating is peeling off Stainless Steel

• Alkaline zinc plating rundown streaking

• Zinc-plate appearance problems (white, powdery, rough surface)

• Non cyanide copper plating Q&As / Problems & Solutions

• Activating old Nickel plating for Replating

• Peeling problem in reel to reel plating

• What Part Does Voltage Play in Electroplating?

• Hard Chrome Plating Failures on Hydraulic Cylinders

• What is the Corrosion Life of Nickel Plated Components?

• Nickel plated stainless steel batteries getting pinholes

• Tin plating: how to improve Salt Spray hours?

• Gold plating rubs right off!

• Very large black rack marks in Zinc-Nickel Plating

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

• Plating time too long (acid zinc)

• Heavy parts chrome plate well; light ones don't

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

• Silver plating delaminates from copper parts but not brass parts

• Relationship of Plating Thickness to Current/Amperage

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

• Why is chromium failing?

• DI water stains Nickel plated surface

• Nickel and Gold Plating onto Bronze Workpiece

• RoHS Zinc Plating of Machine fasteners and Bolts

• Electroforming onto silicone forms/mandrels

• Zinc Plating / Electrogalvanizing Mild Steel Wire

• How to make platinum pen plating solution?

• Plating Thickness variation in hard chrome plating

• Tin plated parts turn yellowish

• Conductive Black Coatings: black zinc

• Platinised titanium anode turning black?

• Our nickel plating is white and milky

• Want plant for Plating zinc diecast

• Need highly Conductive Zinc-Nickel Plating after Chromating

• Nickel Anode Disintegration

• Tin Cobalt plating problems

Delayed black spots (peeling?) in zinc plating

• Unwanted chrome plating build-up on sharp edges

Nickel Plating defect: white patches

• How to calculate the current density for all plating baths?

• Satin nickel plating problem

• Tin over nickel on aluminum bus bar turns black

• Problem in Acid Chloride Zinc Plating

• Calculating zinc consumption in acid zinc plating

• In Search of a Metal Plater with loooooooooong tanks!

Bright silver doesn't blister in diffusion bake, but blisters upon 2nd bake

Tin plating solution is turning grey

• Can applying a strike solution reduce the usability at high temperature?

• Trivalent Chrome Plating Q&A's, Problems & Solutions

• Tin plated parts are turning black

• Pitting in hard chrome plated steel

• Why does dummy plating work?

• Zinc Plating Internal Threads: dimensional changes & coverage issues

• Nickel Electrowinning Q&As, Problems & Solutions

Alkaline Zinc Plating Q&A's, Problems & Solutions

• How to obtain yellow colour in brass plating?

• Nickel Plating Rotary Textile Screens

• Hard chrome plating vs. salt spray hours requirement

• Brass Plating not sticking to underlying nickel plating

• Plating zinc diecast (Zamak-3): Process sequence?

• Zinc-plating appearance problems (white, powdery, rough surface)

• Alkaline Zinc plating: How can caustic & zinc concentrations vary independently?

• Q&A on Silver plating of flatware, serving platters, etc.

Really bad adhesion and lack of shine in Hard Chrome plating

• White and black rust on zinc plating after salt spray test

• Black Chrome Plating

Hard Chrome Plating Failures on Hydraulic Cylinders

• Electroplating / Electrodeposition of Aluminum

• Hard chrome plating chip off at chamfer

• Inconsistent appearance of zinc plated with black chromate parts

• Is brass plating over silver plating possible?

• Rubber mixed into my chromium plating solution

• Best plating process for cabinet handles?

• Hard chrome plating has high coefficient of friction, not low

• Residue when Drawing a Tinned Copper Wire

• Plating time too high in alkaline non-cyanide zinc plating

• Precipitating stannic ion from tin bath

• How to specify Conductive Black Zinc

• Cadmium plating and trivalent chromate

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

Nickel plating over copper flash history

• True that cast iron can't be Zinc Plated?

• Copper plating on Inconel adhesion problem

• Discoloration of bright acid tin plating

• Platinised titanium (or niobium) anodes for hard chrome plating?

• Effect of Temperature on Alkaline Zinc Plating Operation

• How to reduce brittleness in copper (PCB) plating

• Zinc Plating + Iridescent Chromate expected, but parts are white

• Tin plating peels off copper plating when baked

• Nickel plating blisters & peels off

• Source of Contamination on Hard Gold Contacts?

• When did copper flashing on steel for nickel plating begin?

• Sn (tin) plating bath has turned violet/purple

• How to Remove calcium from Nickel Plating Solution

• Silver Plating is Blistering

• Pitting problem in nickel-chrome plating on brass

• "Whitewash" on Chrome Plate

• Alkaline zinc plating at 40 ASF

• How to reduce hardness in nickel sulfamate plating?

• Alkaline zinc plating problem: Black dots/spots that grow with time

• Blue Chrome defect in hard chrome plating

• Nickel plated parts peel when powder coated but not when heat quenched

• Acid zinc plating Anodes are black-ish

• Sodium Vinyl Sulfonate usage in electroplating industry

• Best filler material (ball bearings?) for barrel plating aluminum parts

• Pin holes on hard chrome plated bars

• Can we use stainless anodes in silver plating to battle rising concentration?

• White haze on parts after sulfamate nickel plating

• How long can nickel current be interrupted

• Zinc Plating has unwanted Rainbow Color

• Alkaline zinc plating goes faster at low temperatures than high

• Why must diluted acid be used in nickel plating, not concentrated?

• Cost/pound for FO1 Zinc Plating w/ Clear Chromate on steel

• Need Silver or Tin Plating of Low-Voltage Contacts made from Copper & Brass

• Poor Salt spray test results on black zinc plating

• Some problems in Zinc-Nickel Plating

• Zinc plating with clear chromate discoloration issues

• Need Shop to do Chrome Seal per PS 11501

• Acid zinc plating: peroxide is doing something to clog our filters

• Sulfamate Nickel Strike Problems

• Function of Boric acid in Nickel Plating

• Activating/reactivating old Nickel plating

• Alkaline Zinc Plating Rundown Streaking

• What is Blue Chromate Plating?

• Weird Hard Chrome on Sulfamate Nickel adhesion problem open Q. - April 23 Inquirer often helps others, so especially deserves our help

• Cloudiness & rainbows after Zinc Plating

• Substitute/Alternate/Replacement for Rhodium Plating

• Nickel or Electroless Nickel plating on nitrided steel

• Non cyanide copper plating Q&As / Problems & Solutions

• How to make Rhodium Plating Solution

• Cause of white patches in yellow zinc plating

• Copper & Nickel Plating Thickness vs. Salt spray Resistance

• Acid Zinc Plating: Problems & Solutions

• Brass Plating Problem: we add zinc salt but analysis shows no increase in zinc concentration

• How to calculate plating cost?

• Brush plating stainless with Wood's Nickel

• HCl immersion time for replating old car parts

• Turbulence limit for chrome plating of inner diameter?

• Nickel Contamination of Gold Plating Bath

• Hard chrome broken & burnt

• Electrical conduction properties of nickel plating

• We need gold plating consultant

• Our nickel plating on copper & brass suddenly started peeling

• Chrome Plating Throwing Power

• Problem holding Zinc concentration in alkaline Zinc plating bath

• Black Chrome Plating is making our hands dirty

• Rhodium plating of silver rings Q&A's

• Ruthenium plating on high phosphorous EN

• Hydraulic fluid leaks through/over hard chromium plating

• Need Cadmium Plating per NAS672

• Zinc plating thickness vs. salt spray resistance

• Copper Tungsten: Activation / Plating / Surface Treatment

• Hydrogen embrittlement in zinc plating of auto parts from the 1960's

• Thin Dense Chrome has Brown Spots open Q. (February 15)

• Nickel plating onto alumina dispersion-strengthened Cu alloy (February 14)

• Barrier layer when gold plating on sterling silver open Q. (February 13)

• Poor plating adhesion on Remko (high purity iron) material (February 13)

• Hard chrome plating on copper open Q. (February 11)

• Matte Tin Plating on top of Bright Tin Plating open Q. (February 11)

• White Spots on Cadmium Plating from wooden shipping crates? open Q. (February 10)

• Cost of hard chroming a cylindrical shaft (February 10)

• Cadmium Plating Problems

• How to make gold plating last longer? open Q. (February 9)

• Need Tin-cobalt plating RFQ Wheeling, IL (February 4)

• Need to hold surface finish on Zinc Nickel plated parts open Q. (February 3)

• Clear zinc plating develops brown stains with time open Q. (February 3)

• Fingerprints on silver plated finish (February 2)