With the continuous development of construction technology, the sealant used in construction is very important and more and more kinds. How to choose building sealant products? Check it out below!

    There are many types of building sealant, including silicone, polyurethane, polysulfide, acrylic acid, butyl, asphalt and oil resin modified products. At present, the construction sealant in our country is mainly used in silicone, polysulfide and polyurethane three room temperature curing elastic sealant, and silicone sealant is widely used.

    1. Concrete bonding

    The PC board used on the market is mostly concrete board, so the building sealant should have good adhesion to concrete. Due to the characteristics of concrete itself, ordinary sealant is not easy to bond on its surface. The selection of building sealant should consider concrete is a kind of alkaline porous material, release agent used when the release agent remains on the surface of the PC board.

    2. Joint displacement

    When choosing sealant, its mechanical properties are also very important. In the design should consider the displacement of the joint, determine the width of the joint, is the deformation of sealant in. Within the bounds of tolerance. For 10~35mm concrete joints, sealant is generally required to have good displacement capacity and elastic recovery rate, so that it can adapt to joint displacement.

    3. Weather resistance

    The weather resistance of building sealant will affect its service life, and due to the specific molecular structure of silicone sealant, even at energy. High ultraviolet irradiation is not enough to destroy the structure, the best silicone sealant has good ultraviolet resistance, so that it has obvious advantages in weather resistance.

    Through the sharing content here, do you understand how to choose? If you still do not understand, then directly choose Xiangyang Auman Environmental protection materials Co., LTD., the company's product variety, good quality, welcome to consult!