Professional Gypsum Products Mold Silicone HY-E630 - 30A

Precision, durability, and ease of use define dependable mold-making silicone.

Engineered for Gypsum Products, HY-E630 combines 30A Shore A hardness with balanced flow. Platinum catalyst ensures clean, predictable curing.

Core Performance Features

1. Near-Zero Shrinkage (<0.1%)

Unlike condensation-cure alternatives that shrink 0.3-0.5%, this platinum system holds dimensions tight. Your molds produce parts that fit every time.

2. Outstanding Tear Strength (22-28 kN/m)

Laboratory tear strength translates to real-world durability: fewer mold failures, less downtime, lower per-piece costs.

3. High Tensile (5.0-6.5 MPa) and Elongation (400-460%)

Under production stress, tensile performance ensures molds maintain both form and function cycle after cycle.

4. Optimal Viscosity (20000-24000 cps)

During pouring, silicone flows steadily, filling the mold box evenly without turbulence.

5. Flexible Working Time (35-70 min at 25 °C)

The working window provides ample time for measuring, mixing, degassing, and deliberate pouring on sizeable molds.

6. Food-Grade and Skin-Safe Certified

For confectioners and bakers, FDA compliance means this silicone goes directly into food production.

Technical Specifications

Model: HY-E630 Hardness: 30A Shore A Viscosity: 20000-24000 cps Tear Strength: ≥22-28 kN/m Tensile Strength: ≥5.0-6.5 MPa Elongation at Break: ≥400-460% Mixing Ratio: 1:1 or 10:1 (by weight) Pot Life: 35-70 min at 25 °C Curing Time: 4-6 hours at 25 °C Temperature Resistance: -60 to 200 °C Shelf Life: 12 months (sealed) Certifications: ISO 9001, FDA, UL, CE, RoHS, REACH

Application Focus: Gypsum Products

Mold makers in gypsum products choose HY-E630 for predictable longevity. This 30A Shore A formulation handles gypsum statues and drywall decorative elements across repeated cycles.

Practical tips: Use cold water when mixing plaster to slow setting. Tap molds gently after pouring to release air.

Compatible casting materials:

• plaster of Paris
• gypsum plaster
• alabaster plaster
• gypsum cement
• joint compound

The inert cured silicone does not react with these materials.

Why Choose Hong Ye Jie Technology?

Since 1998, Hong Ye Jie Technology has grown into a global supplier serving 20,000+ customers. Our 10,000 sqm factory runs 20 automated lines at 220 tons per month. The 60-engineer team provides formulation support and on-site training in 138 countries, with partners including Huawei, BYD, and SMA Solar.

Get Started

Get started with a trial order, MOQ as low as 2kg. Our engineers guide you through material selection and curing protocol. Free samples for qualified customers.