plating, anodizing, & finishing Q&As since 1989
Masking in PVD process
March 25, 2022
Angadala: Have you tried that boron nitride? And I have a doubt that how to remove BN after deposition process is completed?Ankit patel
Industrialist - Rajkot, India
A. Hi Ankit. Angadala's posting was from 2006, so we may not be able to reach him to advise of your followup, but other readers may have tried using Boron Nitride and be able to offer you their experience. As for removing it, topic 39257 is "Remove Boron Nitride Coating from Stainless Steel".
Luck & Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
↓ Closely related postings, oldest first ↓
I have a stainless steel knife blade that is coated with titanium nitride PVD coating. After it is coated,I etch letters into the titanium with a laser which exposes the stainless steel underneath. I need to gold plate this exposed stainless but I am having a problem with the gold adhering to the titanium nitride, it comes off easily but I am wasting gold.
I need to know if there is some sort of masking material I can put onto the steel during the lasering that will stand up to the heat and not melt, allow me to plate the stainless and then come off easily?
- Cleveland Ohio
Q. Does the technology exist to place a titanium nitride coating on either a stainless steel or titanium substrate in a masked fashion? The final product cannot be entirely coated by the titanium nitride, but must allow part of the substrate to show through.Jeff Sheets
- Elk Grove Village, Illinois, USA
A. Substrate materials are easily masked off for aesthetic or functional reasons all the time. Titanium nitride applied via PVD is "line of sight" so any area that is prevented from ion bombardment will not receive any coating.Blair Woodring
- East Petersburg, Pennsylvania, USA
Q. I am looking for a masking material that can be hand painted or pad printed onto stainless steel that will subsequently be coated with Titanium Nitride by a PVD process.
The masking material must:-
be inert so that it does not outgas and cause process contamination,
be able to withstand PVD process temperatures without degradation,
be easily removed after the deposition process.
Any insight or suggestions would be gratefully received.
Consumer electronics - Middlebury, Connecticut
A. Dear Michael
You can use ss sheet with a thickness of maximum 0.1 mm to 0.15 mm. it will give good masking all PVD coatings and will withstand to PVD coating coating temperatures . it will give any type of problem. You just mask ss sheet and for tightening use ss wire .
Hope this will solve your problem. Regards.
- Pune, Maharastra, India
Q. Hi Angadala,
thanks for taking the time to reply to me. I really need to find a liquid that can be painted onto the parts I want to plate. Stainless steel is difficult to bend and to get a perfectly tight seal on intricately curved workpiece surfaces.
- Middlebury, Connecticut, USA
A. Hi Michael,
Okay, I have one idea. Let it try for one trial cycle. Apply boron nitride liquid on which you need masking. Because BN can withstand to higher temp and it is having good nonsticking property.and it will stick to ss parts . Because I have seen that in vacuum brazing they are using BN for nonsticking property .
Any views please let me know.
- Pune, Maharastra, India
September 2, 2014
Q. What can I use to cover these places so that ion bombarding does not reach there.
Either a masking or any thing else?
- Mumbai India
A. The easiest way is with a metal mask. Stainless steel is the best, but you can also mask the part off with aluminum or copper.
Jim Treglio - scwineryreview.com
PVD Consultant & Wine Lover - San Diego,
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