This wide range of epoxy adhesives and polyester resins is produced mostly as two-component systems. Curing is effected by the reactions of a resin and a hardener.

This guide explains how to use three of the common composite casting materials, used in schools. 

These adhesives are sold as emulsions and are ready to use.

The solvents are usually highly flammable (hydrocarbons, esters or ketones) but are sometimes non-flammable chlorinated hydrocarbons. This risk assessment also covers paint strippers that use similar solvents.