Polysulfide Sealant

Polysulfide sealant is an expert in sealing for projects with long-term immersion in water and high durability requirements. It is one of the three top-grade sealing materials along with polyurethane and silicone sealant. It also offers single-component and two-component products, featuring excellent resistance to oil, aging, and chemical media. Its low modulus model (LM) can effectively relieve stress and protect fragile substrates. This material has excellent adhesion to metals, concrete, and glass, and forms a stable elastomer after curing. It exhibits minimal performance degradation under long-term water immersion, high humidity, and ultraviolet radiation, with a lifespan of up to 15–20 years. It is particularly suitable for scenarios such as reservoirs, drinking water projects, underground culverts, and ship cabins that have strict requirements for long-term sealing and water quality safety. Sulfurized sealant ensures top-notch sealing performance while offering cost control superior to many special adhesives, providing a reliable guarantee for achieving long-term sealing in key projects.