Hey All,

How do you guys clean your moulds after a pull?

I'm currently using the uni mould system with resin infusion along with easy-lease for my release system.

Before I create another part I need to clean off some glue residue and some hardened  epoxy around the edges. As Im using a semi perm release agent I don't want to use anything too harsh as I don't want to have to start from scratch adding 6 or so layers again.

Ive tried some all purpose cleaner so far but, its not cleaning the mould up so well. Any suggestions?

This is question that I want to know what answer to also, Thanks.

If you're talking about residue from spray adhesive, you shouldn't be using so much spray adhesive that it leaves a residue. Use less and that should solve that issue.

Compressed air is the easiest way to remove the epoxy on the flanges. Can also use a razor blade to gently lift underneath bigger pieces of resin, and masking tape makes light work of the tiny shards.

Realistically, you shouldn't really have to clean your moulds that well. Most of it should be coming off with the laminate when you demould, and then the stuff on the flanges shouldn't matter. Get rid of the sharp jags and the tiny pieces that might find their way to the surface of your next layup, and other than that dont worry about it.

Yeh dont worry - it annoys me too haha. I've just learned not to worry about it. If you really want to get rid of it, run peel ply all around the flanges the next time you use the mould and it will all come away cleanly.

You can buy plastic razor blades that work ok and won't scratch.  I've also found that a wood or hard plastic piece with a hard corner held almost 90 degrees to the surface scraper-style can remove stuck flash without scratching the mold - only something you want to do on your flanges not in the actual part zone.  Spray adhesive - not so much - only mold cleaner or some other nasty solvent seems to work.