HONGYE SILICONE’s Low Shrink Silicone Mold Rubber is a professional two-component addition-curing silicone, engineered for high-precision mold manufacturing with minimal shrinkage. As a national high-tech enterprise with standardized production and one-stop solutions, this low-shrink silicone is non-toxic, odorless, FDA-certified, temperature-resistant (-60℃~250℃), featuring ultra-low shrinkage rate, stable curing and exceptional detail replication. It helps global mold suppliers ensure mold dimensional accuracy, reduce rework costs, and gain competitiveness in precision mold applications.
Product Overview
Our Low Shrink Silicone Mold Rubber is a professional-grade liquid silicone tailored for precision mold making needs. Composed of flowable Part A and Part B, this RTV 2 Silicone Rubber adopts advanced addition curing technology, enabling both room-temperature and heat curing with simple operation. It achieves deep curing without thickness limits, produces no toxic by-products, and boasts an ultra-low shrinkage rate (near zero), ensuring mold dimensional stability and precise detail replication, perfectly meeting the rigorous requirements of high-precision mold manufacturing in industrial, craft and prototyping fields.
Technical Specifications
Type: Two-component addition-curing RTV 2 Silicone Rubber (liquid silicone); Mix Ratio: 1:1 (by weight); Operating Time (25℃): 30~40 minutes (customizable); Curing Time (25℃): 4~5 hours; 80~120℃ for tens of minutes (accelerated curing); Temperature Resistance: -60℃~250℃; Shrinkage Rate: ≤0.1% (ultra-low); Hardness: 20~28 Shore A (customizable); Shelf Life: 10 months (sealed, indoor storage); Fluidity: 700~1100 mPa·s; Tensile Strength: ≥3.5MPa; Certification: FDA food-grade certified; Application: Low shrink silicone mold rubber, Mold Making Silicone, liquid silicone, Rapid prototyping silicone, Industrial mold silicone rubber, precision mold applications.
Product Images and Videos
High-quality images show the silicone’s smooth liquid texture, precision mold filling details, dimensional stability after curing, and finished high-precision molds. Demonstration videos display the full mold-making workflow: silicone mixing, vacuum degassing, pouring, curing, and demolding, highlighting its ultra-low shrinkage, easy operation and precise detail replication. Original image addresses are retained for direct website integration.
Product Features & Advantages
1. Ultra-Low Shrinkage: Shrinkage rate ≤0.1%, ensuring mold dimensional accuracy and consistent shape after curing, far superior to ordinary mold making silicone and Condensation Curing Silicone Mold Rubber. 2. Advanced Addition Curing: No by-products or odor, ensuring clean and stable mold formation, suitable for high-precision industrial and craft mold applications.
3. Excellent Precision & Detail Replication: Optimized formula ensures full filling of intricate mold details, matching the master mold perfectly, reducing rework rates significantly.
4. High Durability: High tensile and tear resistance, supporting 50~80 mold cycles, suitable for long-term batch production of precision molds, reducing replacement costs.
5. Safe & Versatile: FDA-certified, non-toxic, odorless, compatible with resin, metal, concrete, fitting diverse precision mold scenarios.
6. Easy Operation & Customization: 1:1 mix ratio, dual curing options; shrinkage rate, hardness, operating time can be tailored to precision mold needs.
How to Use (Step-by-Step)
1. Mix Part A and Part B of the low shrink silicone mold rubber in a 1:1 weight ratio, stirring thoroughly for 2~3 minutes until uniform and bubble-free (critical for low shrinkage and mold precision).
2. Vacuum degas the mixture for 2~5 minutes (time varies by viscosity) to eliminate bubbles that affect mold quality and dimensional stability.
3. Slowly pour the degassed silicone into the master mold, leveraging its excellent fluidity to ensure full coverage of all intricate details.
4. Cure at room temperature (4~5 hours) or heat at 80~120℃ for accelerated curing, fitting precision mold production timelines.
5. Gently demold the cured silicone mold, clean before reuse; store unused silicone sealed indoors, away from sunlight and rain to preserve its low shrinkage performance.
Application Scenarios
This low shrink silicone mold rubber is widely used in precision mold scenarios, including rapid prototyping silicone molds, industrial Mold Silicone rubber production, high-precision handboards, metal craft molds, resin casting molds, and cultural stone molds requiring dimensional accuracy. It brings tangible value: ensuring mold dimensional stability, reducing rework costs by 30%+, improving production efficiency, and helping suppliers meet the diverse demands of the global precision mold manufacturing industry.
FAQ
1. What is the shrinkage rate of this silicone? Its shrinkage rate is ≤0.1%, near zero, ensuring precise mold dimensional accuracy.
2. Is it suitable for food-grade precision molds? Yes, it is FDA-certified, non-toxic and odorless, fully meeting food-contact safety standards for precision food molds.
3. How many mold cycles can it withstand? 50~80 cycles with proper cleaning and maintenance, cost-effective for batch production.
4. Can we customize the shrinkage rate for ultra-precise molds? Yes, we can tailor the formula to achieve even lower shrinkage rates for specific high-precision mold needs.
5. Does low shrinkage affect its flexibility or durability? No, it maintains high flexibility, tensile and tear resistance while ensuring low shrinkage, suitable for long-term use.
Shenzhen Hong Ye Jie Technology Co., Ltd
Contact Now
