As we all know, polyurethane sealant products have two classifications: one-component polyurethane sealant and two-component polyurethane sealant. The main intended use of these two products are different. Therefore, users select the product, you need to confirm what type of product they are needed. Because some users do not understand the polyurethane adhesive product attributes, so these users that component polyurethane sealants and one-component polyurethane sealant, the use of these two products are the same. In fact, the specific use of different polyurethane adhesive product is very different. Here to talk about two kinds 20HM specific component polyurethane sealant (paste) which has a different scope of use. First, the specific use of two-component polyurethane adhesive products include: used in some concrete structures, bonding various metals used in caulking in various buildings, that's the main purpose of the two-component polyurethane adhesive. Purpose and two-component polyurethane adhesive 20HM component polyurethane sealant (paste) products is very different. Component polyurethane adhesive can be used in sealing doors and windows and insulating glass construction, the use of bridges and runways of pouring the project, one-component polyurethane adhesive can also be used in window glass seal. These are the main uses one-component polyurethane adhesive products. Thus, we know that different kinds of polyurethane colloid scope is very different, the user must choose products according to their actual needs.