In automotive safety, smart wearables, and industrial protective applications—where material performance demands are exceptionally stringent—liquid silicone rubber (LSR) is playing an increasingly critical role. Among these advanced materials, airbag-specific coating liquid silicone rubber IOTA LSR 3730/3740 has emerged as an ideal solution for airbag coatings, architectural textiles, specialized protective garments, and sealing components in 3C electronics, thanks to its outstanding balance of properties.
IOTA LSR 3730 (Shore A hardness 30) and IOTA LSR 3740 (Shore A hardness 40) feature a 1:1 two-part mixing system, engineered specifically for high-efficiency and high-reliability manufacturing. A key advantage is their exceptional self-adhesion to Nylon 66 substrates—eliminating the need for primers while ensuring robust bonding, thereby simplifying processing steps and improving yield rates. Additionally, their low viscosity makes them highly compatible with automated pumping and metering systems, meeting the demands of modern smart manufacturing for continuous, precise material delivery.
In terms of processing, these LSR formulations offer a long working time (pot life) after mixing, facilitating complex coating or molding operations. Yet they cure rapidly—achieving full vulcanization in just 5 minutes under standard conditions of 130°C and 15 MPa—significantly boosting production throughput. The cured elastomers exhibit excellent mechanical properties: tensile strength consistently reaches 5.0 MPa, elongation at break is as high as 400% (for 3730) and 350% (for 3740), and tear strength remains stable at 10 kN/m, ensuring durability and flexibility even under extreme conditions.
Packaged in standard 200 kg drums (one drum each for Part A and Part B), the product maintains stability for up to 12 months when stored unopened below 23°C. Each container clearly displays its expiration date, and performance testing is recommended before use if the shelf life has been exceeded.
As a purpose-built functional coating material for high-safety applications, IOTA LSR 3730/3740 not only enhances the reliability and longevity of airbag deployment systems but also provides foundational material innovation for emerging fields such as smart textiles and flexible electronics—making it a trusted, high-performance liquid silicone rubber solution for tomorrow’s advanced industries.
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