POLYESTER

Polyester, which is in thermosetting plastics groups, is not solvable under effects of chemical reactions and durable under each weather conditions. In general use, they are called isophtalic or bisfenolic as well.

Fiber Glass

It is manufactured by tiny glass grains. Contraction strength level is high.  Strength per mass weight is bigger than steel. They are not combustive. Addition to this, they have a resistance to chemical materials either. Dehumidification and conducting is not the properties of fiber glass.

Gelcoat

Gelcoat is a material used to provide a high-quality finish on the visible surface of a fibre-reinforced composite material. The most common gelcoats are based on epoxy or unsaturated polyester resin chemistry.