The hottest polyurethane sealant Market is promisi
2022-10-20- Detail
Polyurethane sealant Market is optimistic
at present, what data do we need for a new one-component room? Generally speaking, warm wet steam curing polyurethane sealant Pu sealant is popular with more and more users. 1. Head mold: it fully conforms to the provisions of Appendix A of gb/t 2812-2006 "helmet test methods". This product mainly has the following advantages:
first, it is solvent-free, with a high solid content, and will not shrink during construction. At the same time, good elastic sealing enables its elongation at break to reach more than 400%, and its elastic recovery rate and joint displacement resistance are relatively excellent
second, this material has high polarity, good compatibility with most substrates such as marble, cement products, glass, aluminum, wood, fabric, etc., and high connection strength. The shear strength can reach 2 MPa and the elasticity is excellent
many thousand yuan machines that force the use of metal materials are not as good as plastic materials in terms of appearance or hand feeling. Third, during the curing process, they produce crosslinking due to the absorption of moisture in the air, and only release a small amount of ammonia gas, without solvent volatilization or exudation, It will not pollute the substrate and the environment, so it is an environmental friendly product
IV. Pu sealing material is a single component product, which saves operation time and avoids the waste of raw materials for construction
because this material has many advantages at the same time, it can become a leader in sealant products and is widely welcomed by people. As early as the 1970s and 1980s, this material has been widely used in sanitary facilities, airport runways and some important municipal projects in European and American countries and some developed countries in Asia. At present, the production technology of PU products in China has become increasingly mature, so experts predict that the emerging Pu chemical sealing materials will play a better role in the building sealing industry
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