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Home> Products> Mold Making Silicone> Addition Curing Silicone> Addition Curing Mold Making Silicone Rubber - Platinum-Cured, Near-Zero Shrinkage, 20 Shore A
Addition Curing Mold Making Silicone Rubber - Platinum-Cured, Near-Zero Shrinkage, 20 Shore A
Addition Curing Mold Making Silicone Rubber - Platinum-Cured, Near-Zero Shrinkage, 20 Shore A
Addition Curing Mold Making Silicone Rubber - Platinum-Cured, Near-Zero Shrinkage, 20 Shore A

Addition Curing Mold Making Silicone Rubber - Platinum-Cured, Near-Zero Shrinkage, 20 Shore A

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Product Attributes

Model No.HY-E620

Packaging & Delivery

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foam silicone rubber 18
Product Description
Hong Ye HY-E620 is a high-performance addition-curing (platinum-catalyzed) Liquid silicone rubber specifically engineered for precision mold making. With near-zero shrinkage (≤0.1%), exceptional tear strength (≥20 kN/m), and FDA food-grade compliance, it delivers dimensional accuracy and long mold life across a wide range of casting applications. The translucent formulation allows visual inspection of bubble entrapment during pouring, ensuring flawless mold quality.

Key Features

  • Near-Zero Shrinkage — ≤0.1% shrinkage guarantees precise dimensional replication, ideal for high-volume standardized production
  • High Tear Strength — ≥20 kN/m extends mold service life and reduces per-unit production cost
  • Platinum Catalysis — odorless, non-toxic, FDA food-contact certified, safe and eco-friendly
  • Wide Temperature Range — stable performance from -60°C to 200°C, adaptable to diverse production environments
  • Excellent Flowability — 16,000–20,000 cps viscosity with self-leveling behavior captures fine surface details
  • Chemical Resistance — compatible with polyurethane, epoxy resin, cement, gypsum, and wax without reaction
  • Flexible Mix Ratio — supports both 1:1 and 10:1 (Part A:B by weight) to suit different process needs

Technical Specifications

表格

Property Test Standard Value
Appearance Visual Translucent
Hardness GB/T 531 20 Shore A
Viscosity GB/T 10247 16,000–20,000 cps
Tear Strength GB/T 529 ≥20 kN/m
Tensile Strength GB/T 528 ≥5.0 MPa
Elongation at Break GB/T 528 ≥400%
Shrinkage Enterprise Standard ≤0.1%
Temperature Range -60°C ~ 200°C
Mix Ratio 1:1 or 10:1 (by weight)
Pot Life (25°C) 45–60 minutes
Cure Time (25°C) 4–6 hours (accelerate at 60°C for 2 hrs)

Applications

  • Resin crafts & polyurethane product casting molds
  • GRC / cement architectural decoration molds
  • Food-grade baking, chocolate & candy molds
  • Rapid prototyping (Vacuum Casting) molds
  • Precision investment casting wax patterns
  • Model toy & miniature replication molds
  • Candle, soap, and artisan craft molds

Certifications

ISO 9001:2008 · FDA · REACH · RoHS · UL · CE

Packaging & Shipping

  • Packaging: 1 kg/bottle, 5 kg/pail, 20 kg/drum, 25 kg/drum
  • Shelf Life: 12 months in original sealed packaging, store in cool dry place
  • Transport: Non-hazardous material, standard global freight
  • MOQ: 2 kg (sample and trial orders supported)
  • Addition curing silicone
 
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