Product Summary
HONG YE SILICONE’s Liquid Foamed Silicone is a low-shrinkage 2-component Addition Curing Silicone, featuring excellent dimensional stability (shrinkage rate ≤0.3% after full curing), no deformation, precise molding, suitable for precision components, high-precision casting and dimensional-sensitive 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 manufacturing, electronic and dimensional-sensitive industries.
Product Overview
HONG YE SILICONE’s Liquid Foamed Silicone (Foaming Silicone Rubber, Silicone Foam ) is a low-shrinkage dimensional stability core product, specially developed for precision components, high-precision casting and dimensional-sensitive environments. As a 2-component addition curing silicone, it is formed by chemical foaming of flowable Part A and Part B, formulated with shrinkage inhibitors and dimensional stabilizers, featuring ultra-low shrinkage, precise molding, fine uniform closed-cell structure, good elasticity and dimensional stability. It has a shrinkage rate of ≤0.3% after full curing, no deformation, precise dimensional control, effectively solving the problem of traditional foaming materials’ high shrinkage in precision molding scenarios. Compatible with most of our precision and electronic products, it is ideal for precision components, dimensional-stable buffers and high-precision casting scenarios.
Technical Specifications
Type: 2-component addition curing silicone
Low Shrinkage & Dimensional Stability: Shrinkage rate ≤0.3% (after full curing), no deformation, dimensional precision ±0.02mm, dimensional stability ≥99%, no dimensional drift after long-term use
Foaming Feature: Fine uniform closed-cell pores (20-40μm), low-shrinkage structure, dense pore distribution, uniform foaming, no pore collapse or dimensional deformation
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 certification
Key Traits: Low shrinkage, dimensional stability, shrinkage rate ≤0.3%, precise molding
Packaging: Part A (20/25/200KG/barrel), Part B (20/25/200KG/barrel)
Product Features & Advantages
1. Excellent Low Shrinkage: Shrinkage rate ≤0.3% after full curing, precise dimensional control, solving the problem of traditional foaming materials’ high shrinkage in precision molding scenarios.
2. High Dimensional Stability: Dimensional precision ±0.02mm, no deformation, no dimensional drift after long-term use, ensuring consistent product size.
3. Low Shrinkage & Elasticity Balance: While maintaining ultra-low shrinkage, it retains good elasticity and structural stability, no brittle fracture, balancing dimensional precision and usability.
4. Compatibility with Precision Products: Compatible with HONG YE SILICONE’s high-precision mold silicone and electronic Potting Compound, forming a complete 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 dimensional control 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 stability).
2. Mix and stir thoroughly for 3 minutes until homogeneous, vacuum degas to remove air bubbles (ensure shrinkage uniformity and closed-cell structure).
3. Pour the mixture into high-precision mold (paired with high-precision mold silicone), foam and cure at room temperature or by heating (heating helps improve dimensional stability).
4. After full curing, the product has precise dimensions, no deformation, ready for use in precision components and dimensional-sensitive scenarios.
Application Scenarios
Focus on precision dimensional scenarios: High-precision electronic components (paired with electronic potting compound), precision mold casting parts (paired with high-precision mold silicone), dimensional-sensitive buffers (paired with Industrial mold silicone rubber), precision packaging (paired with Liquid Tank Silicone), and precision robot parts (paired with robot silicone). It helps precision manufacturing buyers ensure product dimensional consistency and improve product quality.
Certifications and Compliance
Passed SGS eco-toxicity certification, RoHS compliant, SGS shrinkage certification, excellent low shrinkage and dimensional stability, meeting the precision procurement requirements of B2B buyers in precision manufacturing, electronic and dimensional-sensitive industries, facilitating export to global markets.
Customization Options
Customizable shrinkage rate (≤0.1% for high-demand scenarios), dimensional precision (±0.01mm for high-demand scenarios), foaming ratio and hardness, adapting to different precision and dimensional-sensitive requirements, helping buyers optimize dimensional control effect.
Production Process
Low-shrinkage-oriented production process: High-purity low-shrinkage Silicone raw materials → formula optimization (add shrinkage inhibitors and dimensional stabilizers) → precision mixing → shrinkage test → dimensional precision test → standardized curing → dimensional stability inspection → packaging. Strict dimensional testing ensures product ultra-low shrinkage and precise molding.
FAQ
Q1: What is the shrinkage rate? A: ≤0.3% after full curing, excellent dimensional stability, no deformation, precise molding.
Q2: Will it have dimensional drift after long-term use? A: No, dimensional stability ≥99%, no dimensional drift, ensuring consistent product size.
Q3: Is it suitable for high-precision electronic components? A: Yes, paired with electronic potting compound, ideal for high-precision electronic components and dimensional-sensitive parts.
Q4: Will curing temperature affect its shrinkage rate? A: No, shrinkage rate remains stable in different curing temperatures, ensuring dimensional precision in various production processes.
Shenzhen Hong Ye Jie Technology Co., Ltd
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