Glass fiber reinforcements are classified according to their properties. At present there are five major types of glass used to make fibers. The letter designation is taken from a characteristic property:
1) A-glass is a high-alkali glass containing 25% soda and lime, which offers very good resistance to chemicals, but lower electrical properties.
2) C-glass is chemical glass, a special mixture with extremely high chemical resistance.
3) E-glass is electrical grade with low alkali content. It manifests better electrical insulation and strongly resists attack by water. More than 50% of the glass fibers used for reinforcement is E-glass.
4) S-glass is a high-strength glass with a 33% higher tensile strength than E-glass.
5) D-glass has a low dielectric constant with superior electrical properties. However, its mechanical properties are as good as E-or S-glass.
Technical specifations are downloadable under the menu point "Technical Data Sheets".
The Norwegian and Swedish Governments have signed an agreement concerning the principles for establishing a common market fo
