PC – PBT ALLOYS
PC/PBT Resin Blend (polycarbonate / polyester blend) is a thermoplastic alloy of amorphous polycarbonate and semi-crystalline polyester.. PC/PBT provides a combination of chemical resistance, temperature resistance, and mechanical strength.
Covestro unites the superior properties of polycarbonate and polyester to give Makroblend®. It’s a family of materials ultra-tough enough for ski equipment, automotive spoilers, lawn and garden equipment, housings for medical, electrical and electronic devices. And a whole lot more.
Makroblend® resins have a property profile that includes high toughness (even at low temperatures); good chemical resistance to many lubricants, solvents and cleaning agents; reduced susceptibility to stress cracking; great paintability and low moisture uptake. The material has proved its toughness in applications for the lawn and garden, sporting goods, electrical and automotive industries.
Mineral-filled Makroblend® grades are available with a low coefficient of linear thermal expansion (CLTE) and an excellent surface, which is required for automotive exterior parts like spoilers. They also supply eco-compliant flame-retardant grades (non-halogenated flame-retardant grades).
Key Benefits
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Tough: High toughness even at low temperatures.
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Durable: Chemical resistance and low susceptibility to stress cracking.
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Adaptable: Good flowability and paintability.
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Stable: Grades with low coefficient of linear thermal expansion (CLTE).
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Specialized: Eco-compliant flame-retardant grades available.