As boar bristles become costlier, the shift towards synthetic fibers is accelerating. These fibers, mainly made from polymers like PBT (Polybutylene Terephthalate) and PET (Polyethylene Terephthalate), are blended and extruded into filaments for brush bristles.

    •    PBT (Polybutylene Terephthalate): Known for its softness and elasticity, PBT is ideal for creating heat-resistant bristles. It boasts good heat resistance up to 150°C, with robust mechanical strength.

    •    PET (Polyethylene Terephthalate): PET offers greater hardness and less elasticity compared to PBT, making it suitable for stiffer brush needs.

The combination of PBT and PET in paintbrush manufacturing enhances brush qualities, as PBT provides softness while PET contributes stiffness. This blend can be chemically tapered for finer tips, improving paint application. Their heat resistance and mechanical properties make them versatile for various brush types.

Common applications include: 

    •    PBT/PET: Used in manufacturing paintbrushes, artist brushes, brooms, and more.

Overall, a 30% PBT and 70% PET ratio is often preferred by customers for its balance and resilience. Through years of research, we offer customized ratios to meet specific needs, helping our clients excel in the competitive paintbrush market.