A polyester resin, dissolved in styrene, is hardened by mixing with a catalyst. The resin is often used with glass-fibre reinforcement to give glass-reinforced plastic (GRP). Small scale repair kits use similar materials but with the catalyst supplied as a paste.

These adhesives are essentially a resin bonding agent (liquid or powder) which sets as a result of chemical action with a hardener. A catalyst may be added to accelerate setting at room temperature.

Casting can take many forms, this resources identifies a number of resources that should be considered prior to embarking on any activity where liquid materials are being formed into solid objects.

This may include; resin, plaster, wax.

Where metals, such as pewter or aluminium are to be used, information is available in the Pewter Casting resource.

Embedding small objects in resin.