Hello,

I am using a plug that is sealed with 2k primer and 6 coats of easy lease release agent.

I applied a coat of easy composites high temp gel coat and let cure for 1.5 hours. Came back and it's no longer tacky...
The sun had moved and heated the molds. Should I be concerned applying the second layer of gel coat in fear of delamination between gel coat layers. Reinforcement is el160 high temp epoxy with 2 100gsm and 3 450gsm fiberglass layers.

Is it a small mould, are you wasting much gelcoat if you start again? It is better to start again, so if you're only wasting a little bit then that is what I would do.

If it is a large mould and you can't stomach throwing the gelcoat, you can get away with scuffing the gelcoat up with some 80 grit. You need to be very careful to not pre-release the gelcoat, which will happen quite easily when using Easylease, so just use minimal pressure. Be sure to sand the surface well, but obviously don't go through to the pattern underneath!

This is not as good as the chemical bond you would get with proceeding at the tacky stage, but will give you a useable mould if you are only wanting a small production run.

If you have an air compressor, that is normally the easiest way. Just use a blade to lift up a corner on one of the flanges and give it a quick shot of air, often just comes off in one big piece.

Other than that, you can try starting at the flanges and just peeling it off. But it is damn thought stuff and you will likely end up having to reflange the mould.

So did one test piece yesterday and it worked with no cracking, chipping, or imperfections to the gel coat  
Sanded 100 grit softly, applied second layer of gel coat, and then reinforcement during the firm tack and she pulled right off after the 24 hour period. This is my first time using easy lease and I must say it has impressed me every time I have used it.

Thanks so much for the help. I appreciate it immensely!

Just be careful, as first impressions may be a bit misleading. It will bond initially, but it may not be a good bond and could be prone to delamination or bubbling over time, especially if this is a mould that will be exposed to heat cycles.

That said, if you sanded the surface well then there should be no real concerns - it should bond very well mechanically to itself, so you will likely not notice the difference between this mould and one laid up during the tacky stage.

Definitely a huge fan of chemical release agents. Vastly superior to more traditional release agents.

These are extremely low production molds. 1 pull for most 2 for very few. Will post cure the molds and then pull off them as easy composites reccomends. I will get back with you hopefully in a week or two with positive results.