So i made the mistake of starting to lay the tooling resin without having enough resin to complete the 4 layers of 450grm CSM and only got 2 layers on,although quite resin rich. Is it ok to lay the second 2 layers days after or will i get some sort of de-lamination when using the tool at temperature? 

You will need to give the mould surface a good key with sand paper to ensure you get a bond, then lay on the resin and fibreglass thick enough this time so that it exotherms fully during the cure.  This typically needs the 4 layers to achieve this.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Thanks Warren