PBT Resin

What is PBT Resin?

PBT  (polybutylene terephthalate) is a semi-crystalline engineering thermoplastic material that offers very good chemical resistance with high levels of mechanical and thermal properties. PBT material  has good dimensional stability and is unaffected by ambient humidity. This semi-crystalline thermoplastic also has low friction and resistance to abrasion. The addition of additives can further enhance pbt material properties

The rigidity of Polybutylene terephthalate can be increased by the addition of glass fibers in a loading range of 10% to 40%. Flame retardants can be added to TP to provide performance profiles required for electrical/electronics applications. Although TP is not as ductile as other materials, such as polycarbonate, impact modifiers can be added to provide high impact products. Additives can also be combined to give the products broad property profiles. Examples of this include flame retardant glass filled TP, and flame retardant impact-modified Polybutylene terephthalate.

The semi-crystalline nature of PBT material  causes it to have both higher shrinkage values and higher specific gravity values than amorphous thermoplastics. These factors should be taken into account when designing parts.

Additives, Modifiers, and Reinforcing Agents:
  • Additives – UV stability, easy release (mold releases), colorants, and other stability additives
  • Modifiers – Flame retardants, impact modifiers, flow enhancers
  • Reinforcing Agents – Glass fibers, mineral fillers

Datasheets with full PBT Material Properties

Our Mission

My mission at Polymer Resources has not changed since I founded this company more than four decades ago. It includes continuing our tradition of financial stability, sustainable growth and visionary leadership that compounds success for customers, suppliers and employees. It also means proudly manufacturing our products in America, and making them available to the global marketplace.

Les Klein, Chief Executive Officer, Polymer Resources, Ltd.

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