Talk Composites - The Forum for Advanced Composites

Mould Cleaning

http://www.talkcomposites.com/Topic39600.aspx

By bennyT - 12/9/2020 5:19:47 PM

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?

By explorecomposites - 12/12/2020 2:19:53 AM

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.