It is just glass, just a little thick.
It is a special thickening glass made by special silicon dioxide crystal.
It is not steel. Glass reinforced materials, namely glass fiber reinforced materials, is a new type of composite materials developed in early twentieth Century. It has many advantages such as light weight, high strength, anticorrosion, thermal insulation, insulation, noise insulation and so on. Glass?reinforced?plastics doors and windows use glass fiber twistless roving and its fabric as reinforcing material and unsaturated resin as matrix material, and composite these two material by a special process add other mineral filler. After adding other mineral filler, various hollow sections are processed into the products by heating and curing. Generally speaking, the main characteristics of glass?reinforced?plastics doors and windows are: aging resistance and high strength. Glass fiber reinforced plastic without steel plate as the lining does not need any monomer auxiliary enhancement material, depending completely on its own to support the whole structure. Due to the glass fiber and its fabric as reinforcing material, without filament resin bonding bare, by mechanical thermal curing pultrusion molding, so it features with fracture resistance, anti-bending and deformation resistance. It also is corrosion resistance and has a long life. Glass fiber reinforced plasticbelongs to high quality composite material. It has special corrosion resistance to acid, alkali, salt, oil and other corrosive medium. Glass reinforced materials, namely glass fiber reinforced materials, is a new type of composite materials developed in early twentieth Century. It has many advantages such as light weight, high strength, anticorrosion, thermal insulation, insulation, noise insulation and so on.
Glass?reinforced?plastics (FRP) is also known as GRP, namely glass?reinforced?plastics, which generally refers to use the glass reinforced fibre as the matrix of unsaturated polyester, epoxy resin and phenolic resin. Reinforced plastics using glass fiber and its products as reinforced material is called glass fibre reinforced plastics glass?reinforced?plastics. Due to the different types of resin used in it, there are also called polyester glass?fiber reinforced?plastics, epoxy glass fiber reinforced plastic, phenolic glass fiber reinforced plastic. It is light but hard, non-electrical conduction, high mechanical strength, less recycling and corrosion resistance. It can use to manufacture machinery parts, automobile and ship shell instead of steel.
