Addition Curing Silicone HY-E640 for Epoxy Resin Jewelry Prod

Product No：FW-PROD-004
Brand：Hong Ye Silicone
Product Usage：Specifically designed for epoxy resin pendants earrings and decorative jewelry. Compatible with gypsum cement GRC polyurethane foam epoxy resin polyester resin wax concrete and low-melt alloys. Suitable for both prototyping and mass production.

1. Near-Zero Shrinkage (<0.1%)
Every detail from your master pattern is faithfully reproduced in every cast. No dimensional drift between early and late production runs. Perfect for batch manufacturing where consistency matters.

2. Outstanding Tear Strength (24-30 kN/m)
Mold edges, thin sections, and intricate details resist splitting during demolding. Translates directly to longer mold life and lower per-unit mold costs.

3. High Tensile Strength (5.5-7.0 MPa) and Elongation (350-420%)
Maintains structural integrity even under demanding casting conditions. Handles complex geometries and deep undercuts without tearing.

4. Optimal Viscosity (24000-28000 cps)
Excellent flow properties capture fine surface textures and complex geometries. Self-leveling characteristics reduce air entrapment and minimize manual spreading.

5. Flexible Working Time (30-60 minutes pot life)
Ample time for careful pouring and positioning on large or complex molds. Adjustable through mixing ratio selection (1:1 for longer, 10:1 for faster).

6. Food-Grade & Skin-Safe Certified
Platinum catalyst system produces no toxic byproducts. Certified by FDA, REACH, and RoHS. Safe for food-contact and medical applications.

▎ Technical Specifications

Parameter	Specification
Model	HY-E640
Hardness	40A Shore A
Viscosity	24000-28000 cps
Tear Strength	≥24-30 kN/m
Tensile Strength	≥5.5-7.0 MPa
Elongation at Break	≥350-420%
Mixing Ratio	1:1 or 10:1 (by weight)
Pot Life	30-60 min (25°C)
Curing Time	4-6 hours (25°C)
Temperature Resistance	-60°C to 200°C

The HY-E640 is particularly well-suited for epoxy resin pendants, earrings, and decorative jewelry. Whether you are producing small decorative pieces or large-scale production runs, this silicone delivers the reliability and performance your project demands.

Compatible Casting Materials:
• Gypsum and plaster
• Cement and GRC mixtures
• Polyurethane foam
• Epoxy resin and polyester resin
• Wax and concrete
• Low-melt alloys

The chemically inert cured silicone will not react with any of these materials, ensuring clean demolding and surface finish every time.

▎ Why Choose Hong Ye Jie Technology?

Founded in 1998, Shenzhen Hong Ye Jie Technology Co., Ltd. is one of China's leading silicone rubber manufacturers. Our 10,000 sqm production facility in Huizhou houses 20 automated production lines with a monthly capacity of 220 tons. Our technical team of 60 engineers — including 40 senior specialists — ensures every batch meets the highest quality standards.

We serve over 20,000 customers across 60+ industries in 138 countries. Our trusted partners include Huawei, BYD, SMA Solar, Delta Electronics, and First Solar.

▎ Get Started

Start your next project with confidence. Order samples, request technical consultation, or explore custom formulation options.

Shenzhen Hong Ye Jie Technology Co., Ltd.
Tel: +86-755-89948006
Email: info@szrl.net
Web: www.szrl.net

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Addition Curing Silicone HY-E640 for Epoxy Resin Jewelry Prod

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