A material, generally a polymer, that has an indefinite and often high molecular weight and a softening or melting range and exhibits a tendency to flow when it is subjected to stress.
Resins are used as the matrices to bind together the reinforcement material in composites.
Ingredients mixed into resin to improve properties.
Localized area filled with resin but lacking reinforcement fibre.
Localized area lacking sufficient resin for wetout of the fibres.
Plastic resins, chiefly epoxy and silicone, that are used as tooling aids.