Enhancing Rubber Compounds with Micronized Wax Additives

2025-07-25   Pageview:18

In the rubber industry, processing efficiency and surface properties are critical. Integrating micronized wax rubber processing additives into formulations provides improved mold release, flow behavior, and abrasion resistance—without compromising elasticity.

Core Benefits

  • Mold Release: Reduces sticking during compression or injection molding.

  • Surface Finish: Provides anti-blocking and smoother surface texture.

  • Processing Aid: Lowers viscosity, improving filler dispersion and flow.

Technical Characteristics

  • Melting point: 110–150°C, suitable for NR, EPDM, NBR, and SBR compounds.

  • Particle size: 4–8 µm for uniform distribution in masterbatch or dry-blend.

  • Chemically inert: Does not interfere with vulcanization chemistry.

Application Examples

Rubber Type Wax Dosage Benefit
EPDM 0.5–1.0% Easier extrusion, smooth surface
SBR 0.3–0.8% Mold release, reduced tackiness
Silicone 0.2–0.6% Non-stick finish, clarity boost

Performance Metrics

  • Demolding force reduced by up to 25%.

  • Blooming and sticking problems minimized during storage.

  • Tensile and elongation unchanged—mechanical integrity retained.

Using micronized wax rubber processing additives improves productivity, finish, and handling of synthetic and natural rubbers, particularly in tire parts, seals, gaskets, and shoe soles.

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