In the process of continuous development towards high performance and refinement in fields such as building sealing, electronic potting, and mold manufacturing, the base rubber that combines the convenience of room temperature curing and excellent comprehensive performance is becoming the core support for the development of downstream products. The product we have launched, room temperature vulcanized methyl silicone rubber 107, as a hydroxyl-terminated straight-chain polydimethylsiloxane, with its characteristic of being able to react with crosslinking agents and catalysts at room temperature to rapidly cure into an elastomer, demonstrates extensive application value in numerous fields such as building joint sealing, electronic component insulation potting, precision mold manufacturing, and automotive mechanical sealing, providing high-performance base rubber options for customers in various industries.


1. Core physical and chemical properties and series specifications of the product


The room temperature vulcanized methyl silicone rubber 107 of our company is a colorless transparent flowing liquid. Its molecular chains have active hydroxyl groups at both ends, which endows it with the ability to undergo a condensation reaction and cure into an elastomer when mixed with crosslinking agents and catalysts at room temperature. This product offers three standard viscosity specifications of 20,000 millipascal-seconds, 50,000 millipascal-seconds, and 80,000 millipascal-seconds, which can meet the differentiated requirements of different application scenarios for the fluidity of the rubber and the mechanical properties of the final product. The volatile matter does not exceed 2% within three hours at 150 degrees Celsius, and the surface curing time is not less than two hours.


2. Core performance advantages


After vulcanization, the room temperature vulcanized methyl silicone rubber 107 of this product exhibits the following core performance advantages:


Excellent high and low temperature resistance. The cured elastomer can maintain elasticity within a wide temperature range of minus sixty degrees Celsius to two hundred and fifty degrees Celsius, suitable for sealing and protection applications in extreme temperature environments.


Excellent electrical insulation performance and chemical stability. The product has excellent electrical performance and chemical stability, able to resist water, ozone, and climate aging, playing a key role in the insulation, shock resistance, moisture resistance, and corrosion protection of electronic components.


Good demolding performance and low shrinkage rate. The product has very good demolding performance and a very small shrinkage rate during curing, making it particularly suitable for manufacturing precision molds and imprint materials.


3. Wide application fields


The room temperature vulcanized methyl silicone rubber 107 of this product, with its multi-functional performance combination, can play an important role in the following key application fields, specifically including:


1. Building joint sealing materials. The product is the core base raw material for silicone glass sealant and building sealant, widely used in joint sealing scenarios such as building curtain walls, door and window joints, and road and bridge expansion joints, ensuring the waterproof sealing effect of building structures with its excellent weather resistance and elastic recovery ability.


2. Insulation potting and protection for electronic components. Due to its excellent electrical insulation performance, the product can be used as an insulation, shock resistance, moisture resistance, and heat resistance sealing material for electronic components and assemblies, effectively protecting electronic components from environmental erosion.


3. Precision molds and imprint materials. The product's excellent demolding performance and low shrinkage rate make it particularly suitable for manufacturing precision molds, applicable to molds for casting epoxy resin, polyester resin, polyurethane, paraffin, low-melting-point alloys, etc., and also suitable for fine processes such as artifact reproduction.


4. Sealing and roller materials for automotive and mechanical industries. The product can be used for sealing in automotive engine and transmission components, and can also be used as rubber rollers for textile, plastic, and printing industries.


4. Packaging specifications and storage conditions


The room temperature vulcanized methyl silicone rubber 107 is packaged in iron drums, with a net weight of 190 kilograms per drum. It should be stored in a cool, dry, and ventilated place, and fire prevention measures should be taken. Avoid contact with strong acids and strong alkalis. Transported as non-dangerous goods, during handling, the items should be handled with care and unloaded gently to prevent damage to the packaging. During transportation, it should be protected from rain, moisture, and sunlight to prevent the infiltration of acids, alkalis and other impurities.


V. Quality Assurance and Industrial Chain Value


The room-temperature vulcanized methyl silicone rubber 107 in the production process has established a strict quality control system. Key indicators such as product appearance, viscosity, volatile matter, and surface vulcanization time are monitored throughout the process to ensure consistency and reliability between batches. With the continuous growth in the demand from downstream industries such as construction, electronics, new energy vehicles, and photovoltaics for high-performance organic silicone sealing and encapsulation materials, this product, with its series of viscosity specification designs, excellent comprehensive performance, and wide adaptability as a base rubber, is becoming an important basic raw material for customers in various fields in the selection of organic silicone elastomer materials, providing strong raw material support for promoting product innovation and quality upgrading in related industries.