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Home> Products> Mold Making Silicone> Addition Curing Silicone> Addition Curing Silicone for EPS Component Molding - Near-Zero Shrinkage, 20 Shore A, Platinum-Cured Precision
Addition Curing Silicone for EPS Component Molding - Near-Zero Shrinkage, 20 Shore A, Platinum-Cured Precision
Addition Curing Silicone for EPS Component Molding - Near-Zero Shrinkage, 20 Shore A, Platinum-Cured Precision
Addition Curing Silicone for EPS Component Molding - Near-Zero Shrinkage, 20 Shore A, Platinum-Cured Precision

Addition Curing Silicone for EPS Component Molding - Near-Zero Shrinkage, 20 Shore A, Platinum-Cured Precision

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Product Description
Product Attributes
Packaging & Delivery
Product Description
Product Attributes

Model No.: HY-E620

Packaging & Delivery

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Square Candy Mold Making Tutorial with HY-6 Silicone Rubber
Product Description
 
The EPS Component Molding industry demands mold-making materials that deliver exceptional precision, reliability, and cost-efficiency. Hong Ye Silicone's Addition Curing Silicone rubber (Model HY-E620) has been specifically formulated to excel in EPS & foam decoration applications.

Based on advanced platinum-catalyzed technology, this Liquid silicone rubber delivers:
  • Near-zero shrinkage (<0.1%)
  • Outstanding tear resistance (20 kN/m)
  • Food-safe curing — zero byproducts, zero odor
20 Shore A hardness — optimal balance between flexibility for easy demolding and rigidity for dimensional stability. Viscosity 16000-20000 cps ensures excellent flow and detail capture.
 
【Key Features】

✅ Platinum Catalyst System — no byproducts, <0.1% shrinkage, no odor, food & skin safe
✅ High Tear Strength (20 kN/m) — mold edges resist splitting, longer mold life
✅ Excellent Flow & Detail Reproduction — self-leveling, captures fine textures
✅ Temperature Stability (-60°C to 200°C) — reliable in any environment
✅ Flexible Mixing (1:1 or 10:1) — 35-50 min pot life, workflow control
✅ Food-Grade Certified — FDA, REACH, RoHS compliant
✅ Extended Mold Life (800-1000+ casts)
✅ Chemical Resistance — compatible with gypsum, cement, GRC, PU foam, epoxy, wax, concrete
 
【Technical Specifications】
Parameter Specification
Model
HY-E620
Hardness
20 Shore A
Viscosity
16000-20000 cps
Tear Strength
≥20 kN/m
Tensile Strength
≥5.0 MPa
Elongation
≥400%
Shrinkage
≤0.1%
Mix Ratio
1:1 or 10:1
Pot Life
35-50 min
Cure Time
4-5 hours
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【Applications】
  1. EPS Component Molding — decorative elements, exterior insulation panels, foam shapes
  1. Compatible Materials — gypsum, cement/GRC, PU foam, epoxy, wax, concrete
  1. Small-Batch Prototyping — MOQ 2kg, ideal for design validation
  1. High-Volume Production — batch-to-batch ISO 9001 consistency
  1. Custom Color Matching — available for color-coding molds
  1. Training Use — forgiving working characteristics for beginners
 
【Operating Guide】

1️⃣ Pattern prep → clean + seal + apply release agent
2️⃣ Build mold box → 3-5cm clearance, seal joints
3️⃣ Weigh & mix → ±2% accuracy, stir 3-5 min one direction
4️⃣ Vacuum degas → -0.095 MPa, hold 2-3 min
5️⃣ Pour → thin steady stream from lowest point
6️⃣ Cure → 4-5h at 25°C (or 2h at 60°C)
7️⃣ Demold & inspect
8️⃣ Post-cure 12-24h before first use
 
【Packaging & Shipping】
  • 1kg / 5kg / 20kg / 25kg / 200kg packages
  • Shelf life: 12 months
  • FOB Shenzhen / CIF / DDP / DDU worldwide
  • Delivery: 3-7 days standard, 7-15 days custom
 
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