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2022.08.08
PU adhesive should pay attention to what problems?
PU glue has excellent adhesion fastness, good heat resistance and weather resistance, colorless and translucent, environmentally friendly, non-toxic, easy to operate, suitable for assembly line production. Glue is usually divided into two categories: water-based PU glue and oily PU glue, so what are the problems that PU adhesives should pay attention?
2022.08.01
Preparation of Solvent-free Polyurethane Adhesive
One-component solvent-free polyurethane adhesive, as usual, does not need to be prepared and can be used directly according to operational requirements, which is also the reason why one-component adhesive is easy to use. For two-component or multi-component solvent-free polyurethane adhesive, it should be prepared according to the instructions. If the hydroxyl group content and the isocyanate group content are known, the distribution ratio of each group can be determined by stoichiometric calculation. The isocyanate index R = NCO/OH is generally in the range from 0.5 to 1.4.
2022.07.25
Advantages and Disadvantages of Solvent-free Polyurethane Adhesive and Its Application
One component solvent-free polyurethane adhesive is a room temperature solvent-free one component curing sealant. It is widely used. Whether it is in the waterproof construction of the construction project or in the leakage of the family kitchen and bathroom, it can play a very good waterproof sealing effect.
2022.07.19
Precautions for the use of solvent-free polyurethane adhesive
Solvent-free polyurethane adhesive, which I believe many people already know, because it has the characteristics of high viscosity, water resistance, cold resistance and high temperature resistance, has been applied to various fields, so let's take a look at the use of solvent-free polyurethane adhesive.
2022.07.13
PUR hot melt adhesive use methods and precautions
PUR hot melt adhesive has strong adhesion and high strength after curing, which can meet the bonding requirements of most electronic products. As the development of Chinese products requires heating, many users do not know the correct steps in the heating process, resulting in sizing failure.
2022.07.07
Classification of PUR hot melt adhesive
PUR hot melt adhesive is an intellectual structure design containing different polarity and chemical reactivity of urethane or isocyanate groups, and containing bioactive hydrogen materials, such as wood, leather, fabric, paper, ceramics and other porous building materials and plastic, metal, glass, rubber and other surface to form a smooth material development has excellent adhesion.
