Used as a crosslinking agent in silicone curing systems, particularly in addition-cure silicones for high-performance sealants and encapsulants. Its vinyl groups enable efficient hydrosilylation reactions, enhancing thermal stability and mechanical strength in cured products. Commonly applied in electronics encapsulation due to low shrinkage and excellent adhesion. Also serves as a reactive diluent to modify viscosity without compromising cure efficiency. Found in specialty coatings and medical-grade silicones where purity and performance are critical.