Thermosetting self-adhesive liquid silicone rubber (LSR), as an important branch of high-end silicone materials, has achieved the upgrade of traditional silicone rubber applications by virtue of its silicon-hydrogen addition curing mechanism and self-adhesive properties. Its core advantage lies in the fact that no by-products are released during the curing process, with a shrinkage rate lower than 0.1%, and it can form stable adhesion with metals, engineering plastics (PA, PC), and other substrates without the need for primer coating, with a peel strength of over 1.5 KN/m, solving the technical pain points in the production of composite components. 
The formulation design is the key to achieving self-adhesion. The basic system uses poly methyl vinyl silicone rubber base and poly methyl hydrogen silicone crosslinking agent. By controlling the vinyl content within the range of 0.15%-0.3%, the crosslinking density and elasticity can be balanced; the amount of platinum catalyst is controlled within the range of 1×10⁻⁶-2×10⁻⁵, ensuring operational safety and curing efficiency. The increase in adhesion is the core breakthrough point, introducing acrylic adhesion modifiers containing epoxy groups and ester groups, which can achieve 100% cohesive failure mode, especially solving the adhesion problem with PC substrates; the composite filling of gas-phase silica and MQ silicone resin can increase the tensile strength to over 7 MPa without a significant increase in viscosity. 
This material has excellent high and low temperature resistance (-60℃~200℃), electrical insulation, and aging resistance, and is widely used in automotive component co-forming, electronic equipment sealing, and medical device manufacturing. Its integrated molding process eliminates the need for coating and assembly processes, increasing production efficiency by over 30%, while reducing VOC emissions, making it a preferred material in the high-end manufacturing field.