Paint knowledge | when PU paint is being mixed, why should it be proportioned according to the required proportion?

Core tip: A: the ratio of PU paint and curing agent is calculated by the molecular formula of chemical reaction The proportion shall be strictly controlled If more curing agent is added, the film will burst easily It is easy to produce bubbles and high matte luster during construction If less curing agent is added, the hardness of the film is not enough, the scratch resistance is poor, and the film can be dried slowly or even not Several ways of roller coating Recommended introduction: roller coating includes rubber roller coating, insert plate roller coating and ceramic rubber roller coating The following is a detailed introduction of these three ways of coating The function of roller rubber coating is to increase the friction derivative between the conveyor belt and the cylinder surface during transmission, so as to reduce the friction coefficient of the conveyor belt on the cylinder surface, reduce the mutual wear of the sliding machine of the conveyor belt on the cylinder surface, improve the traction force during operation, and extend the service life of the conveyor belt and the electric roller One, three, six, 8385-7180 (V) rubber rollers are covered with diamond rollers and flat rollers, generally pure rubber plates The rubber coating of the inserted plate roller is divided into tile shell type roller and Paint Home News: A: PU paint and curing agent ratio is calculated by chemical reaction molecular formula The proportion shall be strictly controlled If more curing agent is added, the film will burst easily It is easy to produce bubbles and high matte luster during construction If less curing agent is added, the hardness of the film is not enough, the scratch resistance is poor, and the film can be dried slowly or even not 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,