Summary: HY-E640 is a 40 Shore A addition curing silicone with near-zero shrinkage. Ideal for GRC mold silicone applications, ensuring reliable performance in industrial casting.
Product Overview
HY-E640 platinum cured silicone is a two component silicone RTV-2 liquid silicone rubber for heavy-duty mold making.
Technical Specifications
Model: HY-E640. Hardness: 40 Shore A. Mix ratio: 1:1 or 10:1. Color: Semi-transparent. Temp: -60°C to 200°C.
Product Images and Videos

Product Features
Features high tear strength and food grade silicone compliance. Our 20 production lines ensure stable quality.
How to Use
Mix A and B, vacuum degas, pour, and cure at room temp or heat. Demold after curing.
Application Scenarios
At 40 Shore A, it suits GRC architectural decorations, cement products, large building elements, and PU casting.
Buyer Benefits
High mold lifespan reduces costs. Flexible production supports small trial orders with FDA compliant materials.
Certifications and Compliance
ISO9001, RoHS, REACH, FDA, UL, and CE certified, meeting global safety standards.
Customization Options
Hardness, color, and ratios can be tailored. MOQ is 2kg.
Production Process
Pre-production sampling, 20 lines, and full inspection before shipping ensure reliable mold making silicone.
FAQ
MOQ is 2kg. Food grade safe. Cures in hours. Provides long mold life. Samples available. Search HONG YE SILICONE to consult.

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