General knowledge of coating: application of polyurea spray technology in the field of construction

Core tip: in recent years, polyurea elastomer spraying has been developed rapidly, widely used in construction, energy, transportation, water conservancy, chemical industry, electromechanical, environmental protection and other fields, showing strong vitality Polyurea elastomer spraying is a highly reactive and pollution-free spraying technology developed in recent 20 years abroad Its excellent physical and chemical properties, excellent technology and environmental protection fully show its incomparable advantages over the traditional protection technology In recent years, polyurea elastomer spraying has been developed rapidly and widely used in construction, energy, transportation, water conservancy, chemical industry, electromechanical, environmental protection and other fields Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Home of coatings: in recent years, polyurea elastomer spraying has been developed rapidly, widely used in construction, energy, transportation, water conservancy, chemical industry, electromechanical, environmental protection and other fields, showing a strong vitality Polyurea elastomer spraying is a highly reactive and pollution-free spraying technology developed in recent 20 years abroad Its excellent physical and chemical properties, excellent technology and environmental protection fully show its incomparable advantages over the traditional protection technology In recent years, polyurea elastomer spray has been rapid development, widely used in construction, energy, transportation, water conservancy, chemical, mechanical and electrical, environmental protection and other fields, showing a strong vitality The properties and characteristics of polyurea are environmental friendly, 100% solid content, solvent-free, organic matter free, non-toxic and pollution-free green spraying technology Excellent physical and chemical properties of water permeability, seamless as a whole, dense tissue, tenacity, strong adhesion, real "skin type" waterproof Polyurea can be used for water-proof on the upstream and the downstream Polyurea elastomer coating can be used at - 45 ℃ ~ 120 ℃ for a long time, with heat resistance up to 160 ℃ (able to withstand short-term heat shock at 160 ℃), good weather resistance and aging resistance Although the aromatic polyurea has yellowing phenomenon under UV erosion, it has no pulverization and cracking It can be used for a long time, and it is resistant to freezing and thawing, cold and heat shock, wind, rain, frost and snow Excellent physical properties Polyurea has remarkable characteristics such as tensile strength, tear strength, impact strength, adhesion, elongation, wear resistance, puncture resistance, rolling resistance, abrasion resistance, wet sliding resistance, etc., and it also has excellent resistance to concrete cracking, protection against concrete cracking and reinforcement for weak concrete structure Good anti-corrosion function Polyurea can withstand the long-term immersion of acid, alkali, salt, sea water, chloride ion and other corrosive media The process polyurea has the advantages of high reactivity, fast curing speed, and can be continuously sprayed on the vertical surface, top surface and any curved surface without sagging Polyurea elastomers do not require catalyst, 5~20 seconds gel, 10 minutes to reach the walking strength, continuous spraying, once construction thickness is unlimited, short construction period, high efficiency The construction of joint details is convenient, and no special fiber reinforced layer is needed Polyurea elastomers have strong adhesion to metal and non-metal substrates, such as steel, aluminum, reinforced concrete, wood, FRP, polyurethane foam, etc The bonding strength of polyurea elastomer to concrete is ≥ 5MPa (more than the bonding strength between concrete) The sensitivity of polyurea elastomer to temperature and humidity is small, and it is less affected by the environment temperature and humidity during construction Special primer is used for construction on wet base The polyurea elastomer is sprayed by a complete set of equipment with high production efficiency With Graco GUSMER's h-35pro equipment, each shift can be sprayed with a coating of up to 2000 square meters with a thickness of 1 mm The coating surface is smooth and continuous without joints By adjusting the process parameters, the "pockmarked" surface can also be obtained, and the sand can also be spread on the surface to increase the bonding force with the asphalt concrete base Polyurea elastomer can be added with various pigments and fillers according to the requirements to make coatings with different colors and functions, with excellent surface decoration Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,