Masking Machined Parts without using MEK (Methyl Ethyl Ketone)

M

MantleMickey

Hello, I have a challenge that Grainger technical people could not solve,
maybe someone out there has come across this.
The issue, we are masking machined metal products using Microstop Stop-Off Lacquer, to protect the surface during plating operations.
After plating operations, we take the stuff off.
The problem, this stuff is MEK based, and the cost to buy and dispose of it is extreme.
The question, is there anything else out there I can use that IS NOT MEK based?
I appreciate any feedback you may have.
MM
:confused:
 

Mikishots

Trusted Information Resource
Re: Masking machined parts without using MEK

Depends on the plating process; for anodizing, I have used wax masking and I have also used aluminum tape. For a process like cadmium, neither of these would be a wise choice.

We have experienced issues with the Microstop product (bleeding under the edges, poor adhesion) that can only be partially addressed by meticulous pre-application practices. Use of the aluminum tape has been a very good and reliable masking technique for us, and we have received approvals for variations to our manufacturer's processes. You might want to give it a try if the process you're using it for is compatible with it.
 
M

MantleMickey

Re: Masking machined parts without using MEK

Miki, we are dipping parts in a nickel bath.
Would this still work?
Thanks for the response.
 

Wes Bucey

Prophet of Profit
Re: Masking machined parts without using MEK

Miki, we are dipping parts in a nickel bath.
Would this still work?
Thanks for the response.
I'm just curious - are you using electrolytic nickel plating or electroless? Methyl Ethyl Ketone is an interesting solvent. Is the masking intricate? What is the function of the masked surface that it needs to be free of plating? Depending on the intricacy of the masking and options for nickel plating (for corrosion resistance or cosmetic appearance?), there might be a number of options open that would provide an acceptable solution within your budget and still meet form, fit, and function requirements of your product. More details, please.
 
M

MantleMickey

Wes, our nickel plating is electrolytic.
We make a diamond head cutting bur, plating only the head area
The masking is protecting the balance of the metal, imagine a drill bit.
Tape will not work, because we load 30 parts hanging from a clip,
with the head dipped in the nickel bath.
 

somashekar

Leader
Admin
Wes, our nickel plating is electrolytic.
We make a diamond head cutting bur, plating only the head area
The masking is protecting the balance of the metal, imagine a drill bit.
Tape will not work, because we load 30 parts hanging from a clip,
with the head dipped in the nickel bath.
Also see if you can ask your technical question in Finishing.com
 
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