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    Home > Coatings News > Paints and Coatings Market > Coating technology: Construction and precautions of non tar polyurethane environmental protection waterproof coating

    Coating technology: Construction and precautions of non tar polyurethane environmental protection waterproof coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    The key points are as follows: the non tar polyurethane waterproof coating is a two-component polymer chemical reaction type waterproof coating with polyurethane as the main body The waterproof coating is composed of polyurethane prepolymer (component a) with isocyanate group (- NCO) and curing agent (component B) with polyhydroxy group (- OH), carbon black, vulcanizing agent, mould inhibitor, tackifier, catalyst and other auxiliaries Cheng After the components of a and B are mixed evenly according to a certain proportion, the elastic whole waterproof coating film is formed after curing 1、 Advantages of non tar polyurethane environment-friendly waterproof coating: 1 Non coal tar, irritating Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Home of coatings: non tar polyurethane waterproof The coating is a two-component polymer chemical reaction type waterproof coating with polyurethane as the main body The waterproof coating is composed of polyurethane prepolymer (component a) with isocyanate group (- NCO) and curing agent with polyhydroxy group (- OH), and other auxiliaries (component B) with carbon black, vulcanizing agent, mould inhibitor, tackifier, catalyst, etc After the components of a and B are mixed evenly according to a certain proportion, the elastic whole waterproof coating film is formed after curing 1、 Non tar polyurethane environment-friendly waterproof coating product advantages: 1 Not suitable for coal tar, less irritating odor, reduce pollution 2 Cold construction, convenient operation and safe construction 3 Liquid construction, room temperature curing, short solidification period, strong adhesion, high waterproof and impermeability 4 High elongation, cold and heat resistance, corrosion resistance, good aging resistance 2、 Construction of non tar polyurethane environment-friendly waterproof coating: 1 Base treatment: the construction surface shall be solid, flat and dry, free of open water, dust and soil, oil pollution, and the low and damaged areas shall be filled and trowelled 2 Ingredients: a component material: B component material according to a certain proportion of weight, first pour a component material into the container, then add B component material, and mix it well before use 3 Construction: the construction of materials is generally divided into two to three times The mixed coating is evenly applied on the base surface with rubber scraper or brown brush The application and scraping shall be repeated in two vertical directions for many times to ensure the penetration and adhesion of the coating on the base surface When the first coating surface is dry and solidified, the second coating can be applied (if glass fiber cloth or non-woven cloth is added to the coating, its waterproof performance will be better improved.) 4 Construction of protective layer: before the last layer of protective layer is solidified, a little coarse sand shall be spread on its surface, and then a protective layer of cement mortar shall be made 3、 Precautions: 1 The concrete must reach the maintenance period, and the construction temperature should be above 50 ℃; 2 Air circulation should be maintained during construction: the prepared coating should be used up within 20 minutes; 3 Before the coating is dry, it is strictly prohibited to walk on the waterproof layer, and attention should be paid to protect it from damage; 4 The product should be sealed and stored in a dry and ventilated place without sunshine and rain The storage period is one year 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,
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