Views: 0 Author: XINYITE PLASTIC Publish Time: 2025-08-11 Origin: Site
Polyamide (PA) engineering plastics—most notably PA66—are prized for their balance of strength, chemical resistance and processability. To push performance further, compounders traditionally add chopped glass fibers (GF). More recently, hybrid systems that combine glass fiber (GF) with spherical glass beads (GB) have gained attention. The fiber delivers high tensile strength and stiffness, while the beads provide isotropic dimensional control, lower warpage and improved surface aesthetics. Understanding how each filler functions—and how they interact—allows designers to fine-tune material behavior for demanding applications.
Effect of Adding Glass Beads:
Dimensional stability: Spherical GBs reduce differential shrinkage and post-mold warpage by up to 30 % compared with GF-only grades .
Surface quality: Beads smooth flow lines, lowering surface roughness (Ra) and enabling Class-A finishes without secondary coatings.
Creep & fatigue: GBs restrict micro-crack propagation under cyclic loading, extending service life in snap-fits and gear teeth.
Automotive: PA66 GF20 GB10 for exterior mirror housings and cooling-fan blades—parts that need stiffness and low warpage for snap-assembly.
Electrical: PA66 GF30 in high-load connector housings where dimensional tolerance is managed by mold design rather than bead reinforcement.
In short, glass fibers maximize strength while glass beads optimize dimensional and surface performance. The hybrid system lets engineers balance both in a single, cost-effective compound. XINYITE PlASTIC is specialized in R&D and manufacture all kinds of engineering compounds. If polyamide materials with glass beads are required, please contact us for details.
