Talk Composites - The Forum for Advanced Composites

XC 110 210g (two layers) sticking to glass plate altough using 6 layers of 'Easy-Lease Chemical Release Agent'

http://www.talkcomposites.com/Topic36145.aspx

By Andre Hartmann - 4/3/2020 11:13:05 AM

I am doing high gloss and sattin finish carbon fiber sheets using glass plates and aluminium sheets as negativ surface.
While the satin sheets just fall of the alumium after cureing the other ones stuck to the glass and have to be peeled off.

In the beginning, more renewed layers help, but at some point the point is reached that the sheets can only be removed with fine fine cracks in the surface because they are that strongly stuck to the glass plate.
The problem arises with increasing age of the release agent, however regardless of the specified shelf life?! The last bottle of 'Easy-Lease Chemical Release Agent' was ordered on March 22. Batch sticker says: ELRA-01  4173-19 
With this bottle the problem occurred from the beginning. Of course the surface was first cleaned with Easy-Lease Mould Cleaner.

I know glass as surface can be tricky but over the last 1 1/2 years I also got many remarkables results using 'xc110' in combination with the 'Easy-Lease Chemical Release Agent'.
But all sheets with cracks in the surface cannot be used for further production in my company, they have to be sorted out. This is extremely annoying in terms of the value of the wasted material and especially the work involved.
I hope you can help.

By Warren (Staff) - 4/22/2020 3:26:49 PM

Yes it is possible that could be an issue.  Certainly something we will keep an eye on to see if it is a problem.

Missed your comment about already ordering some ELRA before we had dispatched the FOC replacement.  If you want to return one to us we can always still credit it back off that order if you don't think you will use it up.