The waterproof offer @ crack sealant manufacturers of raw materials of polyurethane sealant technology uses: crack sealant for concrete elements and floor cracks, sealing of cracks, perfusion plugging waterproof crack sealant by A, B two components of a kinds of polymer synthesis amorphous sealant, bond strength, curing contraction, aging resistance, low temperature, oil, acid and alkali-resistant features and the product is non-toxic, non-polluting product, harmless to human body. The sealant for crack treatment in civil engineering, underground waterproof sealed, water projects such as dams, aqueducts, reservoirs, culverts waterproofing treatment, the concrete pipe joint sealing and structural connection role. Efficient building mortar admixture (mortar king) (hereinafter referred to as the mortar the king) is a new kind of mixture of cement mortar additive, its incorporation will not only significantly improve the workability of the building mortar and cement mortar can significantly improve various performance indicators. According to the mechanism of hydration of the cement mixture, the choice of a variety of special materials prepared from. Tesco materials, production process is simple, the investment can be very flexible, and high profits. The present invention relates to a building mortar admixtures, it increases the fluidity of mortar, destruction of the cement particles flocculation organization, reducing the number of harmful stomata, mortar strength and bonding properties. Greatly improve the the mortar workability of the present invention is applicable to the cement mortar and lime mortar and replace lime mixed mortar, saving cement, significant economic and social benefits. Mortar king recipe analysis mortar king formulation technology transfer technology transfer, production formula and production technology (including core technology formulations) can be produced cost 300 yuan / ton mortar king. Profit margins, just a few thousand dollars of the mixer without tons of mortar king can recover the cost, as engaged in retail, wholesale and mass production. Annual income amount immeasurable. Not only to get rid of the manufacturers, middlemen exploitation. Can also be their own boss. Market and prospects I do not say to you I know. The use of the product, workability absolutely no less than other manufacturers. The production of this product raw materials around Tesco.