Building sealants mainly include polysulfide sealants and silicone building sealants
(1) Polysulfide sealant
Most of the sealants currently used in construction are two-component polysulfide sealants. The appearance of the two-component polysulfide sealant is a fine, uniform paste or viscous body, so it is usually called a two-component polysulfide sealant. Two-component polysulfide sealant and two-component polysulfide sealant are the same product.
The two-component polysulfide sealant is a two-component paste, and the two components have obvious color difference, which is easy to mix evenly. The use ratio is A:B=100:8-12, and the sizing time is 2-6 hours. The product is neutral, non-toxic, non-polluting, anti-corrosion, anti-bacterial, water-resistant, oil-resistant, weak acid and alkali resistant, and has excellent anti-aging properties. Long service life and excellent leak-proof adhesive sealing performance.
Application of two-component polysulfide sealant: widely used for caulking and sealing of deformation joints such as settlement joints in construction, municipal, subway, tunnel, airport runway, highway, bridge and other projects. It is suitable for all kinds of anti-seepage caulk sealing of various expansion joints in water plants, swimming pools, reservoirs, power stations, dams, sewage treatment projects and water supply and drainage systems.
(2) silicone building sealant sealant
Among the sealants currently used, some are silicone building sealant sealants. The silicone building sealant sealant has good anti-ultraviolet performance and stable chemical properties, and is the best anti-aging sealant in the existing sealants. It has good compatibility with silicone building sealant and is widely used in weather-resistant sealing of building curtain walls.
The silicone building sealant sealant is divided into: weather-resistant sealant for curtain wall, ordinary silicone sealant, special sealant for stone curtain wall, special sealant for aluminum plate and aluminum composite panel curtain wall, special weather-resistant sealant for lighting roof. With the rapid development of the building curtain wall industry, the special sealant for large plate glass and the special sealant for spot curtain wall also stand out. All kinds of special sealants are selected from special glues designed by manufacturers, with reliable and stable performance. It should become the first choice for weather-resistant sealing of curtain walls such as aluminum plate curtain walls and stone materials. Designers can also choose suitable products from silicone building sealant.