That is correct.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Hi Hanaldo and Warren

Thanks for the replys I am in no rush just didn't want to leave it too long !

so basically when it has hardened off it is ready to lay up,

Regards

ian

Hanaldo is essentially correct. The time it takes for the Coupling Coat to cure varies depending on the ambient temperature and the ratio of MEKP used so it is hard to give an accurate time frame. If you are in a hurry, I would come back after no more than 2 hours and keep checking from there until the resin is cured and ready for the backing plies.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

You can move on as soon as it is hard. 

Hi just a quick question

I have read up and watched your tutorials but still a little unsure on how long I should leave the coupling coat and the light weight matt ply to cure before moving onto the main heavy plies with uni-mould tooling resin.

Regards
Ian