Coating process: production process of polyurethane waterproof coating for wet base

Core tips: 1 Formulation of polyurethane waterproof coating for wet base surface: Composition dosage / mass fraction of polyether 60-105 epoxy resin 10-20 hydrochloric acid 0.07-0.2 benzoyl chloride 0.07-0.2 isocyanate 10-60 butyl tin dilaurate 0.1-0.3 stannous caproate 0.2-0.4 xylene 8-12 (this formula is only for reference) 2 Production steps: ① Polyether, epoxy resin, hydrochloric acid and benzoyl chloride are added into the vacuum reactor, and the temperature is 95-115 ℃, and the pressure is - 0.06mpa to - 0.09mpa 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: 1 Formulation of polyurethane waterproof coating for wet surface: composition dosage / weight: polyether 60-105, epoxy resin 10-20, hydrochloric acid 0.07-0.2, benzoyl chloride 0.07-0.2, isocyanate 10-60, butyl tin dilaurate 0.1-0.3, stannous caproate 0.2-0.4, xylene 8-12 (this formula is only for reference) 2 Production steps: ① Polyether, epoxy resin, hydrochloric acid and benzoyl chloride are added into the vacuum reactor to dehydrate for 50-120min under the temperature of 95-115 ℃, pressure of - 0.06mpa to - 0.09mpa and agitation; ② 10% - 40% isocyanate of the total dehydrated material is added into the dehydrated material to synthesize reaction for 50-100min under the temperature of 50-85 ℃ and agitation; ③ 25% ～ 55% isocyanate resin, 0.1% ～ 0.3% February butyltin laurate and 0.2% ～ 0.4 stannous octanoate of the total amount of the dehydrated materials are added to react for 50 ～ 100min under 50~85 ℃ and stirring; ④ 2~4 times xylene of the total amount of the dehydrated materials are added to mix evenly to prepare the wet based polyurethane waterproof coating 3 Usage: take 300g / ㎡ of this waterproof coating and brush it twice After the first coating and curing, brush it twice It can be finished with brush scraper or roller brush Wet base course refers to the base course with basic strength and no open water after the completion of concrete or cement mortar base course and cement hydration 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,