hwagoo.blogg.se

Let's take a look at the formula of various putty powders:ġ. The main purpose is to fill the pores of the construction surface and correct the curve deviation of the construction surface, so as to lay a foundation for obtaining a uniform and smooth paint surface. Putty powder is a kind of surface leveling powder material which is pre-treated on the construction surface before the paint is applied.

Slip agent and water reducer are generally used in high-grade putty to improve the construction performance of putty.

Antifreeze mainly improves the storage stability of putty at low temperature. Thickeners and water retaining agents play a role in water retention, storage and construction performance, and cellulose is generally used. Attention should be paid to the combination of filler fineness.Īdditives include thickeners, water retention agents, and the like. The filler mainly serves as a filling agent, and commonly used are calcium carbonate, talc powder and quartz sand. Organic polymers can be modified and toughened to improve putty performance Cement is a binder that is good in adhesion, durable and cost-effective, but has poor tensile strength and crack resistance.

The most commonly used binders for putty are cement and organic polymers, and organic polymers are also divided into emulsions and latex powders. It is the most important component of putty and mainly plays various roles such as bonding. Putty is generally composed of base materials, fillers, water and additives. However, during the construction, it is necessary to apply a layer of interfacial agent on the base layer to seal the base layer and improve the adhesion of the wall surface, so that the putty can be better bonded to the base surface. Usually the putty is gypsum or cement based, so that the surface roughness is easier to bond firmly. The internal wall putty comprehensive index is good, healthy and environmentally friendly, so the inner wall is not used externally, and the outer wall is not used internally. The outer wall putty should resist the wind and the sun, so the glue is large, the strength is high, and the environmental protection index is slightly lower. The putty is divided into two types: the inner wall and the outer wall.