Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. It is used in oil-filled transformers, some types of high-voltage capacitors,fluorescent lamp ballasts, and some types of high-voltage switches and circuit breakers...

Unsaturated polyesters are condensation polymers formed by the reaction of polyols with saturated and unsaturated dibasic acids. Polyester resins are used in GRP Pipes, Tanks, Ducts, Sheet Moulding Compound (SMC), Cultured Marble, Marine, Wind Energy, Transport, Building and Construction industries...