‘By focusing specifically on tooling technology we have dedicated all our resources to solving some of the perennial issues with composite tooling,’ said MD Paul Hackett. 

The Compotool system includes the tooling board, adhesive and surface sealer and is therefore suitable as a more accuracy pattern system or for rapid prototyping and short run direct tooling.  CT850 is a high performance tooling board with a coefficient of thermal expansion equal to carbon and has temperature capability of up to 850°C. It has very low thermal conductivity so all the heat applied from the autoclave goes into the laminated part rather than the tooling board, giving an improved surface finish, reducing autoclave time and also allowing faster ramp rates. Wear on cutting tools is equal to that of machining wood or MDF.

One process

The board is a poor conductor of heat, unlike epoxy tooling blocks, and therefore can be cycled through the thermal curing process very quickly. It retains its dimensions through rapid cure and cooling.  With its extreme temperature capability of 850°C, either medium or high temperature pre-pregs can be used enabling a full cure at high temperature to be achieved in the tool in one process, thus avoiding the need for a subsequent post cure. 

The CT850 can be used as a drilling or machining jig after cure as the mould or part will still fit.