Local / Swab / Spot Passivation on Assembled, Laser Welded Part
– 4/7/25

Passivate per MIL F 14072 E300
– 3/7/25

Titanium anodizing for multi-color sheets for kitchen cabinets
– 2/8/25

Passivating Laser Cut Stainless Steel Problem
– 1/22/25

Electrical Properties of Passivated Stainless Steel
– 1/6/25

Electropolishing 4xx / 400 series stainless steel
– 12/31/24

Can’t remove old plastic protection film from stainless steel
– 12/27/24

How to smoothly etch stainless steel materials
– 12/26/24

“Rainbowing” and “Bluing” method for Stainless Steel
– 12/14/24

Electropolishing stainless steel to a ‘satin’ finish
– 12/6/24

335/04. Anodizing Titanium for Wear Resistance & Anti-Galling
– October 18

121/46. Refinishing scratched stainless appliances
– October 14

  26/29. Component burned all the way through from electropolishing
– September 24

553/76. Pickling & Passivating 410S stainless steel per ASTM A380?
– September 9

440/70. Durable black coatings for stainless steel
– August 28

47682. White patches after electropolishing cobalt chromium material
– July 15

  5358. Algae, fungus, bio-fouling in plating tanks?
– July 4

  5422. Alcohol Is Making Electropolished Stainless Steel Peel
– May 30

61669. SS430 Wire Has Black Spots. Why?
– May 20

61668. 304 steel continuously generates dark residue
– May 20

20840. 303 Stainless Steel Passivation Problems
– April 15

14182. Frosted, etched, or burnt passivated parts – Type 303 stainless steel
– April 14

51990. Parts turn black in Wood’s Nickel Strike
– March 21

11047. Should electropolishing voltage/amperage be ramped?
– March 21

61643. Must welding tint be removed before passivation
– March 7

26187. Stainless tank with NaOH at 360 °C at 128 bar
– February 27

47682. Electropolishing and Chemical Etching Processes for Cobalt Chromium
– February 5

14697. Chatter-like marks after electropolishing?
– February 2

25485. Can T316 stainless steel be used 400 feet away from the sea?
– November 9

61593. SS420 Pickling and Passivation Problem
– October 25

  3649. Need consultant for AMS2488 Type II Anodizing of Titanium
RFQ open to all: Miami – October 19

13897. Passivation for type 420SS stainless
– October 15

28680. Citric Acid vs. Nitric Acid Passivation
– October 3

• Phosphoric acid & sulfuric acid electropolishing of stainless steel
– September 18

• Procedure for electropolishing stainless steel
– September 16

• Anodizing titanium to green color — Q&A’s

• Cleaning step/process after passivation treatment
– July 26

• Anodizing Titanium: electrolyte formula
– June 9

• Haziness or Cloudiness on Type III Anodized Titanium
– June 2

• Rectifier (power supply) choice for anodizing titanium?

• 303 Stainless Steel Passivation Discoloration
– May 3

• Giving Stainless Steel an Aged Brass Look

• Etching titanium to produce crystalline finish?
– April 15

• Reduce discolorations on cold-headed 18-8 stainless screws
– April 14

• Current density & Voltage for Type 2 anodizing of titanium
– April 11

• Blackening process for stainless steel chainmail

• Racking material to be used for Titanium anodizing?

• Passivation Stains on 17-4 PH Stainless Steel
– March 9

• Electropolishing with citric acid
– February 19

• Electrolytic etching of titanium
– February 11

• Electropolishing/deburring of hypodermic needles
– January 10

• Stainless steel laser etch and passivation Q&A
– January 10

• Removal of Heat Treat Scale from Stainless Steel

• Anodizing titanium black in color
– December 8

• Haziness or Cloudiness on Type III Anodized Titanium

– December 2

• Passivating long small dia., 316L SS tubing
– December 1

• Aesthetic thermal browning of stainless steel

• Stainless Steel Discoloration when Heat Treating

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

• Electropolishing defect in small area
– November 17

• Anodizing titanium to green color — electrolytic pre-etch

• Medical Implant Boil Test – September 19

• Ratio of phosphoric & sulfuric acid for electropolishing

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

• Passivating a part with selective tungsten carbide coating on it

• Chemical/Electro polishing of stainless steel – August 21

• Electrical Properties of Passivated Stainless Steel20

• Activation of stainless steel for plating

Dark frosty cloud dull finish in electropolishing

Stainless steel passivation problem: color inconsistent – June 28

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

Titanium galling & anodize/oxidize wear resistance – June 28

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

Need titanium bolts & washers blackened RFQ: Tucson AZ – June 9

• 3 interesting open questions about electropolishing stainless steel

• 304 Stainless Steel for Liquor Decanter

• Does passivated 304 offer same corrosion protection as regular 316? – May 16

• Annealed & passivated stainless parts fail water immersion test – May 12

• Anodizing of titanium: Type II alkaline RFQ: Spring, TX – May 8

• Aging issues with phosphoric acid/sulfuric acid electropolishing solution? Thanks! Resolved  🙂 – May 5

• Need non-magnetic 17-7 PH material – May 4

• Diffusion Treatment Of 316 Stainless Steel stained it – May 3

• Electropolishing nickel-titanium (nitinol) Q&A’s, Problems & Solutions – April 27

• Stainless Steel Electropolishing parameters

• Need consultation support of AMS2487/AMS2488 Type II Anodizing Process RFQ Bangalore, India – February 20

• ferric chloride Not Etching Stainless Steel – February 17