Talk Composites - The Forum for Advanced Composites

HELP - Resin beading / Fisheying on glass mould?

http://www.talkcomposites.com/Topic21517.aspx

By Davie M12 - 6/27/2016 5:56:23 PM

Hi Folks,

I'm having my first attempt at making some simple wet lay CF shapes and using a glass sheet bonded to MDF backing as a mould base.

The part is flat 100mm x 50mm and has a 10mm radius on leading edge which has been formed using polyester body filler.

I'm following the how to guides & have coated the mould with 6 layers of Easy lease and brushed on the is EL2 (slow) resin.

Problem is that the resin seems to be repelled from some areas of the mould leaving areas where there is no resin at all!

I tried brushing it back over the uncovered areas but it just keeps opening up again a few minutes after its covered.

I used digital scales to accurately measure resin ratios and am working in clean area at 20 deg ambient temp. 

Any ideas?

Thanks,

David.
By Warren (Staff) - 6/30/2016 9:07:36 AM

You should be able to polish the surface of the part if it has a matt surface from the mould.