Different sealing scenarios demand significantly different material hardness—precision electronics require soft, conformable sealing, while industrial high-pressure environments rely on rigid, wear-resistant materials. Traditional single-hardness materials often fail to meet diverse needs, forcing manufacturers to frequently switch materials and incur higher costs. A low-compression-set liquid silicone rubber offering 7 hardness options—spanning the full range of 10–70 Shore A—combined with the advantage of low compression set, has become an efficient, adaptable sealing solution for multiple industries.

This liquid silicone rubber is specifically designed for sealing applications, featuring a two-component 1:1 mixing ratio that simplifies the production process. No professional measuring equipment is needed—workers can accurately proportion the components based on experience. Once thoroughly mixed, the material is ready for production, reducing measurement errors and saving operational time. It is suitable for both batch production in small-to-medium enterprises and large-scale operations in major manufacturers.

The gradient design of the 7 hardness specifications allows the product to precisely match different scenario requirements:

• 10–20 Shore A (Soft): Flexible and pliable, with an elongation rate of 650%–800%, tightly conforming to complex curved surfaces. Ideal for waterproof sealing in precision electronic components and medical devices.

• 30–40 Shore A (Medium-Low Hardness): Tear strength of 25–30 kN/m, resistant to wear and damage. Suitable for standard seals in household appliances and automotive applications.

• 50–70 Shore A (Medium-High Hardness): Tensile strength of 9–10 MPa, with strong support capability. Designed for sealing components in industrial high-pressure equipment and heavy machinery, resisting deformation under high pressure.

The low compression set property is consistent across all hardness grades. Regardless of hardness, the product quickly rebounds after prolonged compression, maintaining a tight seal and preventing leaks. Combined with rapid thermal curing and excellent mold release properties, the product achieves fast molding and eliminates issues with mold adhesion, significantly improving production efficiency and reducing defect rates.

With a density ranging from 1.08 to 1.14 g/cm³, the material is uniform in texture, structurally stable, and highly resistant to aging and environmental factors. It maintains stable performance under high temperatures, humidity, or standard working conditions. For storage, simply keep it sealed below 23°C, where it remains usable for up to 12 months, allowing manufacturers to flexibly stock according to order demands.

Currently, this product is widely used in the automotive, electronics, household appliances, and industrial equipment sectors. It can be found in automotive door/window seals, waterproof gaskets for electronic devices, sealing components for refrigerators and air conditioners, and high-pressure sealing pads for industrial applications. With its full range of hardness options and low compression set advantages, it provides a one-stop solution for customized sealing needs across various industries, making it an efficient raw material choice for sealing component manufacturers.