Supply caulking putty training @ masonry mortar Development @ airtight agent formulations fine aggregate is natural sand, the preparation of mortar called ordinary mortar. Sand in clay content should not exceed 5%; strength classes less than m2.5, clay content should not exceed 10%. The maximum particle size of the sand should be less than 1/4-1/5 of the thickness of the mortar, and is generally not more than 2.5 mm. As groove joints, and wiping the surface with a mortar, the maximum particle diameter of not more than 1.25 mm, the degree of the thickness of the sand on the large amount of cement, workability, strength and shrinkage effects. Aka waterproof fine: the brush in bamboo baskets, bamboo baskets can draw water! Cost of $ 2,000 / ton, the market price at $ 8,000 / ton. Also known as water repellent: spray with a sprayer in red brick, the rainwater call up is like playing in a lotus leaf, natural rolled away! Costs 4 yuan / ton, the market price of 20,000 yuan / ton. Ming Nami the insulation agent: wiping the window glazing, summer heat, winter insulation, high adhesion, easy to dry, long life, insulation, waterproof, fire-retardant, self-cleaning, environmentally friendly paint, coating automotive glass, decorative glass, window glass, light transmission rate of up to 90%, can effectively inhibit the radiant heat of the sun and infrared solar heat reflection rate was 95% thermal conductivity for 0.03W/mK., insulation inhibition efficiency up to 90%! costs 4 yuan / ton, the market price of 20,000 yuan / ton. Elastic waterproof coating, also known as self-healing: the knife pierce and then pulled out of the paint, the incision healed quickly watertight cm can be stretched 20 cm, the cost price of 5 yuan / ton, the market price of 30,000 yuan / ton. Aka mortar king: per ton mortar king instead of one thousand tons of lime, Province Cement, cost three hundred retail price of three thousand!