Tooling Blocks
Tooling blocks are essentially a combination of epoxy resins, glass microballoons and hardeners, which are mixed together and cured in an oven until hard. They are cast into standard size ‘boards,’ which are joined to form a block larger than the component to be made.
For larger components, a key factor is the actual weight of the tooling blocks. Trelleborg supplies an option weighing 400kg/m³, effectively half the weight of standard market variants.