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Advantages: * Good adhesion to porous base surfaces * Good performance in stretch joints (stretch tension) Behavior in movement joints (stress relaxation) * Can be used for natural stone * Little dirt pick up * Stable quality standard Defined standard * High tear resistance * Resistant solvent, gasoline, etc. Resistance to solvents / gasoline etc. * Surface curing time is faster Skinning time * Easy to repair Easy to repair Disadvantages: * Opaque No transparent * Not applicable to structural...
Polyurethane adhesive refers to an adhesive containing a urethane group (-NHCOO-) or an isocyanate group (-NCO) in the molecular chain. It has excellent performance and should be widely used. According to Gunter Festel, a polyurethane adhesive specialist at Bayer in Germany, the diversity of polyurethane adhesives is almost a solution to every bonding problem. Polyurethane adhesives are classified into two major categories: polyisocyanates and polyurethanes. They contain highly polar, highly...
With the development of the food industry, flexible packaging has become more and more important. The quality of flexible packaging is closely related to the adhesive used, and polyurethane adhesives, due to their excellent properties, can be used for flexible packaging materials with various properties such as cold resistance, oil resistance, drug resistance, transparency, and abrasion resistance. Therefore, it plays an important role in adhesives for flexible packaging. The status....
What is a waste solvent? The waste solvent is the solvent that has been used, or some solvent that is not reacted at the time of the chemical reaction. In industrial production activities, some factories after repeated use of several cleaning agents will be mixed with a large number of impurities in the cleaning agent poured. This old way to deal with waste thinners is neither economic nor environmentally friendly. The mixed with impurities cleaning agent can also be processed again for...
Waterborne polyurethane adhesive refers to the adhesive formed when polyurethane is dissolved in water or dispersed in water. In practical applications, waterborne polyurethanes are mostly based on polyurethane emulsions or dispersions, and the aqueous solution type is less. In Europe, the earliest research and development of polyurethane water dispersion system, after the 70's formed several more mature preparation methods, such as acetone, prepolymer dispersion, melt dispersion method,...
Polyurethane adhesive is an important product category in the synthetic adhesive industry and new polyurethane material industry, and is widely used in various fields of the national economy. In the last two years, the production scale and technology of polyurethane adhesives in China have developed rapidly, mainly in the following areas: Continuous bulk polyurethane resins for footwear Solid polyurethane adhesives for domestic footwear manufacturing There are more than 100 manufacturers in...
Water-based inks are listed as the first choice for environmentally friendly printing. Room temperature crosslinked waterborne polyurethane adhesives can be used to prepare single-component polyurethane water-based inks suitable for gravure printing. The water-based inks have high light and water resistance, strong adhesion, adjustable dryness, vivid colors, clear layers, non-toxic, non-flammable, and weatherproof. Sticky and easy to control, compared with other water-based inks, has a wide...
Solvents are the most important auxiliary materials in the gravure printing of plastic packaging films. Intaglio printing inks use the lowest viscosity and the fastest drying speed in all kinds of printing, which is mainly determined by the properties of solvents. Solvents use it as a liquid to suit printing needs. The main component of gravure printing ink is solid, which accounts for 50%-70% of the ink composition and cannot be directly used for printing. The solvent not only adjusts the...
Polyurethane adhesive refers to an adhesive containing a urethane group (-NHCOO-) or an isocyanate group (-NCO) in the molecular chain. Polyurethane adhesives are an important part of polyurethane resins that are currently developing rapidly. They have excellent properties and have been widely used in many fields. They are one of the eight major synthetic adhesives. The diversity of polyurethane adhesives provides a solution to many bonding problems, and is particularly applicable to places...
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.