Since 1999 Delta-Tech provides products and services to the composite materials industry. Delta-Tech develops resin matrices, used by its subsidiary, Delta-Preg, to manufacture prepregs (a fibrous substrate which is preimpregnated with synthetic resin.) The prepreg product range includes woven fabrics, multi-axial fabrics and unidirectional tapes fabricated via solvent and hotmelt coating technologies. Main production is based on carbon fibre, but glass, aramid and technical fibers are also used. Delta-Tech also provides technical support and specific solutions to OEMs, parts manufacturers and designers to obtain the best results with prepreg technology. Since September 2015 Delta-Tech and Delta-Preg are part of the Toray Group.