PBT/PET is a thermoplastic engineering polymer that is used as an insulator in the electrical and electronics industries. It is a thermoplastic (semi-)crystalline polymer, and a type of polyester. There are resistant to solvents, shrinks very little during forming, is mechanically strong, heat-resistant up to 150 °C (or 200 °C with glass-fiber reinforcement) and can be treated with flame retardants to make it noncombustible. It was developed by Britain's Imperial Chemical Industries (ICI).
PBT is closely related to other thermoplastic polyesters. Compared to PET (polyethylene terephthalate), PBT has slightly lower strength and rigidity, slightly better impact resistance, and a slightly lower glass transition temperature. PBT and PET are sensitive to hot water above 60 °C (140 °F). PBT and PET need UV protection if used outdoors, and most grades of these polyesters are flammable, although additives can be used to improve both UV and flammability properties.
Good heat resistance, super toughness& fatigue resistance.
Nice electrical stability.
Excellent dimension stability,
Self-lubricating, low water absorption,
Electrical insulation is good
To keep good properties in the humid environment .
Widely used in machinery, instrumentation, automotive parts, electrical and electronic, railway, home appliances, communications, textile machinery, sports and leisure products, oil pipes, fuel tanks and some precision engineering products.
|Auto Parts||Light parts, Door mirror frame, air supply port, igniter coil bobbin, insulation cover, motorcycle igniter|
|Electrical&Eletronics parts||Connectors, sockets, relays, sound output transformer skeleton, energy saving lamp holder, hair straighter, and other consumer electronics|
|Industrial parts||Bobbins, splitter and so on|
|SIKO Grade No.||Filler(%)||FR (UL-94)||Description|
|SP20G30FGN||30%||V0||PBT+30%GF, Halogen free FR V0@1.6mm|
|SP30G30FGN||30%||V0||PET+30%GF, Halogen free FR V0@1.6mm|
|SP20G20F/G30F||20%-30%||V0||PBT+20%GF, FR V0@1.6mm|
|SP30G20F/G30F||20%-30%||V0||PET+20%GF, FR V0@1.6mm,|
|Material||Specification||SIKO grade||Equivalent to Typical brand & grade|
|PBT||PBT+30%GF, HB||SP20G30||BASF B4300G6|
|PBT+30%GF, FR V0||SP20G30||BASF B4406G6|
|PET||PET+30%GF, FR V0||SP30G30F||DUPONT Rynite FR530|