Zero Inhibition Heat Resistant Platinum Cure Silicone Rubber 40 Shore A 19 kN/m 1:1 for Architectural Concrete Molds

Zero Inhibition Platinum Cure Silicone Rubber (HN-E640, 40 Shore A)

Hanast HN-E640 is a heat-resistant, zero-inhibition platinum cure silicone rubber engineered for architectural concrete molds, GRC (Glassfiber Reinforced Concrete) casting and cultural stone production. Built on an addition-cure platinum system with a 1:1 equal-part mixing ratio, it delivers 19 kN/m tear strength, an ultra-low shrinkage of ≤0.1% and stable performance across a wide temperature range.

Key Features

• Optimal 40 Shore A Hardness – Ideal balance of rigidity and flexibility for large concrete molds under heavy material loads.
• Exceptional Tear Strength 19 kN/m – Superior durability for repeated demolding cycles in high-volume production.
• Zero Inhibition – Platinum-catalyzed addition cure with no cure inhibition, giving reliable, repeatable curing and long storage (≥12 months).
• Wide Temperature Range -40°C to +230°C – Stable performance for cold-climate outdoor casting and high-temperature resin applications.
• Ultra-Low Shrinkage ≤0.1% – Precise reproduction of fine surface details on cultural stone and decorative panels.
• 1:1 Simple Mixing Ratio – Suits manual pouring and automated dispensing in industrial production.
• Non-Toxic & Eco-Friendly – No byproducts; RoHS and REACH compliant for export markets.

Technical Specifications

Recommended Applications

• Architectural concrete molds and GRC casting
• Cultural stone and decorative panel molds
• Precast concrete and heavy-duty industrial molds

Wholesale Supply & Packaging

Factory-direct supply from a 40,000 m² production base with multi-ton batch capacity (100 tons/month), packed in 20 kg / 25 kg / 200 kg drums with full MSDS and TDS documentation. E-Series full hardness range 0–60 Shore A with custom formulations available.