release agent / coating

[opticsman]

Hi all , I am having trouble selecting a suitable release agent / coating. I am trying to replicate a fine structured, metal surface by casting ( with a polymer resin) . The metal surface has a mirror finish. Can anyone suggest a suitable release agent or coating to use. I need it to create a fine, release layer which is uniform (microns thick only) and has no "clumping". Wax based agents are out as the agent needs to get into fine crevices. Some sort of spray would seem suitable but not sure how uniform that can be if applied by hand . I was also wondering if low adhesion (removable) coating like a silver spray ( or vacumm silver coating ) might be an alternative? any advice will be appreciated. Many thanks in advance. Opticsman

 

[BLN]

Miller Stephenson makes spray on PTFE coatings you might try. I use them to make elastomeric gaskets.

 

[coatingengineer]

Hello,

Try the DuPont amorphous film, 1600 AF. It's just a few microns thick. Expensive, yes, but I believe it's what you're looking for.

I'm new to this forum. So, by now, perhaps you've found your answer.

William Gunnar

http://www.IndustrialCoatingsWorld.com