High Purity for Engineering Plastics
Plastic Filler Silica Powder comes from 25 years of manufacturing experience. We know how strict plastics makers are about purity and particle size. Our powder has a stable SiO₂ content above 99.5%. Ionic impurities are very low. This makes it perfect for engineering plastics used in electronics. A connector manufacturer chose us because our product gave the best performance in dielectric loss and heat stability. They tested many sources before selecting us.
Boosting Modulus and Dimensional Stability
This Plastic Filler Silica Powder does more than just cut costs. It is a functional additive. In nylon and polyester compounds, it raises the flexural modulus and heat deflection temperature. It also cuts molding shrinkage. This gives parts better dimensional accuracy. For precision electronic housings and structural parts, this is a major advantage. With two labs and a full set of testing equipment, every batch of our product is consistent. Your production line runs without unexpected changes.
Reliable Data for Material Design
|
Parameter |
Typical Value / Range |
Test Standard |
|
Main Content (SiO₂) |
≥ 99.5% |
Chemical Analysis |
|
Density |
2.65 g/cm³ |
Pycnometer Method |
|
Dielectric Constant (1MHz) |
≤ 4.5 |
Dielectric Tester |
|
Volume Resistivity |
≥ 1×10¹⁴ Ω·cm |
High Resistance Meter |
|
Particle Size (D50) |
5μm - 30μm (Customizable) |
Laser Diffraction |
|
Moisture Content |
≤ 0.20% |
Oven Drying Method |
|
Whiteness |
≥ 94 |
Whiteness Meter |
Custom Solutions for Your Resin System
Plastic Filler Silica Powder is used in many plastics applications. It is a key filler in epoxy molding compounds and electronic potting. It lowers the thermal expansion and boosts heat transfer. In engineering plastics, it strengthens PA6, PA66, PBT, and PPS compounds. It also improves copper-clad laminates. We can customize the particle size and surface treatment for your specific resin. We can even offer a coupling agent-treated version. This helps our Plastic Filler Silica Powder bond better with your resin matrix.
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