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here are two kinds of waterproof materials on the market: polyurethane waterproof coating. This kind of material is usually made of polyurethane and coal tar as raw materials. Its volatile tar is highly toxic and not easy to remove, so it was banned in China in 2000. The other is a polymer cement based waterproof coating. It consists of a variety of water-based polymer emulsion and high quality cement mixed with a variety of additives. The flexibility of the polymer (resin) is integrated with the rigid cement, making it excellent in permeability and stability. It has the advantages of convenient construction, low comprehensive cost, short construction period and non-toxic environmental protection. Therefore, polymer cement has become the leading role in the waterproof coating market.
Waterproofing coating can be divided into emulsion, solvent type, reaction type and modified asphalt according to the state and form of coating.
The production equipment of the waterproof coating is varied. It can be directly processed by high speed dispersing machine and high shear emulsifier. The process of heating and cooling is complicated. In the equipment configuration, we must pay attention to the occurrence of demulsification, especially after the addition of emulsion or film to the equipment of high speed agitation, such as high speed dispersing machine and high shear emulsifier.


Keywords high speed dispersing machine high shear emulsifier static mixer