Skip to main Content

Polybutylene (PB)

Product Finder

Polybutylene-1 (PB-1) is a member of the polyolefin family of thermoplastics that is polymerized from butene-1. P-1 offers some unique properties compared to other polyolefins including having the highest shear thinning, the lowest melt viscosity, and the lowest heat of fusion. These characteristics allow PB-1 to not only melt first in the extruder barrel which provides for good homogenization, but to require lower energy to melt. This is why PB-1 can help disperse colorants and additives and prevent them from re-agglomerating. In addition, PB-1 has a slow crystallization rate which makes them an excellent choice for some hot melt adhesive applications. PB-1 also offers higher creep resistance than other polyolefins and maintains its properties better at elevated temperatures.

Typical applications for PB-1 include pressure tanks, hot melt adhesives, peel-seal films, fiber modification, compound modification and as a carrier resin for color and additive concentrates.

Entec logo

Our Services

Bring us your manufacturing goals or your best challenges – our experts will provide you with outstanding support and services.

Learn More
Entec logo

About Entec

Highly reputed for our experienced sales staff, technical guidance, and logistics expertise.

Learn More

Contact Us Today

The team at Entec will work with you through every stage of the process to realize your project goals.