Hi Guys,

I have just completed a resin infusion using your infusion epoxy resin. My mould is a gloss finish polycarbonate sheet. I applied several coats of easylease (per instructions) to the mould, followed by a brush applied coat of your GC50 Epoxy compatible gelcoat, followed 3 hours later by resin infused carbon reinforcement.

Unfortunately, 24 hours later, the part was stuck fast to the mould. When I removed it (with much force!) the carbon laminate came away from the gelcoat while leaving the gelcoat stuck to the mould surface.

I am trying to establish why this happened. I did use a standard MEKP catalyst with the GC50, not your catalyst product as shipping restrictions would allow me to purchase it with the gelcoat (I'm in Ireland). Is it possible that the MEKP I used was incompatible or past it's shelf life? Or could it have been a reaction of the easylease with the polycarbonate.

Your advise would be appreciated.

Wesley

Thanks for the reply. I'm pretty sure that the catalyst was at fault. I kept the pot I mixed it in and it cured cloudy and and not fully hard. I realised it was a couple of years old.