Product Summary
HONG YE SILICONE’s Liquid Foamed Silicone is a low shrinkage 2-component Addition Curing Silicone, featuring excellent low shrinkage performance (shrinkage rate ≤0.3%), low deformation after curing, dimensionally stable, suitable for precision components, high-precision molding and low-shrinkage scenarios. It has fine uniform closed-cell pores, -65℃-200℃ temperature resistance, 1:1 easy operation, passed SGS shrinkage test, compatible with high-precision Mold Silicone and Electronic Potting Compound, serving B2B buyers in precision molding, high-precision and low-shrinkage industries.
Product Overview
HONG YE SILICONE’s Liquid Foamed Silicone (Foaming Silicone Rubber, Silicone Foam ) is a low shrinkage dimensionally stable core product, specially developed for precision components, high-precision molding and low-shrinkage scenarios. As a 2-component addition curing silicone, it is formed by chemical foaming of flowable Part A and Part B, formulated with low-shrinkage modifiers and stable fillers, featuring ultra-low shrinkage, shrinkage rate ≤0.3%, low deformation after curing, dimensionally stable, fine uniform closed-cell structure, good elasticity and shrinkage stability. It effectively maintains dimensional accuracy after curing, solving the problem of traditional foaming materials’ high shrinkage and deformation in high-precision molding scenarios. Compatible with most of our low-shrinkage products, it is ideal for precision components, low-shrinkage buffers and high-precision molding scenarios.
Technical Specifications
Type: 2-component addition curing silicone
Low Shrinkage & Dimensional Stability: Shrinkage rate ≤0.3% (ASTM D2566), low deformation after curing, dimensionally stable, shrinkage stability ≥95%, dimensional accuracy ±0.01mm, no dimensional deviation
Foaming Feature: Fine uniform closed-cell pores (20-40μm), low-shrinkage structure, dense pore distribution, uniform shrinkage, structural integrity after curing
Temperature Range: -65℃ to 200℃ (long-term use)
Mixing Ratio: 1:1 (Part A:Part B, by weight)
Cure Method: Room-temperature or heated (80℃, 1h) vulcanization
Certifications: SGS eco-toxicity, RoHS, SGS shrinkage test certification
Key Traits: Low shrinkage (≤0.3%), dimensionally stable, low deformation after curing, high precision
Packaging: Part A (20/25/200KG/barrel), Part B (20/25/200KG/barrel)
Product Features & Advantages
1. Ultra-Low Shrinkage: Shrinkage rate ≤0.3%, low deformation after curing, solving the problem of traditional foaming materials’ high shrinkage in high-precision molding scenarios.
2. Dimensional Stability & High Precision: Shrinkage stability ≥95%, dimensional accuracy ±0.01mm, no dimensional deviation, ensuring dimensional accuracy of precision components after curing.
3. Low Shrinkage & Elasticity Balance: While maintaining ultra-low shrinkage and dimensional stability, it retains good elasticity and structural stability, no brittle fracture, balancing low shrinkage and usability.
4. Compatibility with Low-Shrinkage Products: Compatible with HONG YE SILICONE’s high-precision mold silicone and electronic Potting Compound, forming a complete high-precision molding solution, enabling one-stop procurement. 5. Easy Operation: 1:1 simple mixing ratio, good flowability, easy to process into precision components, no professional high-precision operation skills required, improving production efficiency.
How to Use
1. Take Part A and Part B according to 1:1 weight ratio, stir separately to eliminate sediment, ensure no impurities (avoid affecting shrinkage and dimensional accuracy).
2. Mix and stir thoroughly for 3 minutes until homogeneous, vacuum degas to remove air bubbles (ensure uniform shrinkage and closed-cell structure, dimensional stability).
3. Pour the mixture into high-precision component mold (paired with high-precision mold silicone), foam and cure at room temperature or by heating (heating helps enhance shrinkage stability).
4. After full curing, test shrinkage rate (≤0.3%) and dimensional accuracy (±0.01mm) to confirm qualification, then use in high-precision and low-shrinkage scenarios.
Application Scenarios
Focus on low-shrinkage scenarios: Precision component high-precision molding (paired with high-precision mold silicone), high-precision part buffers (paired with electronic potting compound), low-shrinkage packaging (paired with Liquid Tank Silicone), high-precision machinery components (paired with Industrial mold silicone rubber), and precision robot parts (paired with robot silicone). It helps precision molding and high-precision industry buyers ensure dimensional accuracy of components.
Certifications and Compliance
Passed SGS eco-toxicity certification, RoHS compliant, SGS shrinkage test certification, excellent low shrinkage and dimensional stability, meeting the high-precision procurement requirements of B2B buyers in precision molding, high-precision and low-shrinkage industries, facilitating export to global markets.
Customization Options
Customizable shrinkage rate (≤0.1% for high-demand scenarios), dimensional accuracy (±0.005mm for high-demand scenarios), foaming ratio and hardness, adapting to different high-precision and low-shrinkage requirements, helping buyers optimize dimensional accuracy.
Production Process
Low-shrinkage-oriented production process: High-purity low-shrinkage Silicone raw materials → formula optimization (add low-shrinkage modifiers and stable fillers) → precision mixing → shrinkage test → dimensional accuracy test → standardized curing → shrinkage stability inspection → packaging. Strict shrinkage testing ensures product ultra-low shrinkage and dimensional stability.
FAQ
Q1: What is the shrinkage rate?
A: ≤0.3%, dimensional accuracy ±0.01mm, low deformation after curing, suitable for high-precision scenarios.
Q2: Will it deform after curing?
A: No, shrinkage stability ≥95%, low deformation after curing, no dimensional deviation, ensuring dimensional accuracy.
Q3: Is it suitable for precision components?
A: Yes, paired with electronic potting compound, ideal for precision components and high-precision molding.
Q4: Will temperature affect its shrinkage?
A: No, shrinkage stability ≥95%, shrinkage rate remains unchanged in -65℃-200℃, ensuring dimensional stability in various temperature scenarios.
Shenzhen Hong Ye Jie Technology Co., Ltd
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