[6] Neopentyl glycol and epichlorohydrin are reacted in the presence of a Lewis acid catalyst to form a halohydrin.

[7] The waste products are water and sodium chloride and excess caustic soda.

A key use is modifying the viscosity and properties of epoxy resins.

[8] which may then be formulated into CASE applications: Coatings,[9] Adhesives,[10] Sealants and Elastomers and composite materials.

[11][12] The use of the diluent does effect mechanical properties and microstructure of epoxy resins.