Talk Composites - The Forum for Advanced Composites

Failure to release

http://www.talkcomposites.com/Topic7662.aspx

By andrewt1971 - 8/30/2013 5:55:35 PM

Hi

I've had a problem with a couple of infused parts not releasing from the molds this last week, the problem appears to be my easylease has gone 'off', i've had it about 14 months.  Anyway two of my molds are a complete mess and there is definitely no way they are useable or repairable, the third, pictures below has, has this crazing pattern in quite a few areas and some cracking in places on the edge.  Would I be correct in thinking that this is scrap too?

http://i1049.photobucket.com/albums/s386/Andrewt1971/IMAG0038_zps728a9b1b.jpg

http://i1049.photobucket.com/albums/s386/Andrewt1971/IMAG0041_zpsf41bce34.jpg


thanks

andy
By fgayford - 9/9/2013 9:42:14 PM

Just another tip that I always do just to make sure before I make a part.
I check to see how active the surface is with a piece of masking tape. Put the masking tape down onto the surface of your mold and then peel it off taking note of how easy it comes off compared to an untreated surface. You will soon know how easy your release will be. If it is too active you need to apply another coating of release or wax or whatever you are using.
Fred