PA (Polyamides)
Polyamides are high-impact, very tough thermoplastics which exhibit very good electrical insulation characteristics, favorable tracking characteristics and resistance to flashover. The greater the proportion of filling agents, the less the water absorption and the better the dimensional stability. Their specific surface resistance, due to humidity absorption, is somewhat less than for other plastics, but there is the advantage that this reduces the tendency for a build up of electrostatic charge and thus the tendency for PA components to attract dust is avoided.

These characteristics mean that polyamides are suitable for production of casings for electrical plant. (Typical
application: high voltage modules, plastic frame grips)

PC (Polycarbonate)
Polycarbonate is an amorphous thermoplastic. It is distinguished by high strength, viscosity, hardness, rigidity and good resistance to heat and cold in relation to its form, and good electrical characteristics. PC is a glass-clear, easily dyed plastic with very low water absorption, and exhibits high dimensional precision, low wastage and good processability. (Typical applications: inserts/ insulators, frames and individual modules for modular system)

PBT (Polybutylenterephthalate)
Polybutylenterephthalate is a thermoplastic polyester and is distinguished by its high rigidity, high stability of form under heat, low creep, low water absorption of <0.2%, high dimensional stability and good to very good electrical characteristics. It is a tough viscous plastic with high abrasion resistance, high dimensional stability and long-term strength combined with good slip and wear characteristics. (Typical application: insert/ insulators)