NWT321 cement-based permeable crystalline waterproof coating


product description It is a rigid waterproof material developed from Portland cement, quartz sand and various active chemicals. After interacting with water, the active chemical substances in the material penetrate into the concrete through the carrier, form water-insoluble crystals in the concrete, fill the capillary channels, prevent the concrete from cracking, enhance the strength of the concrete, prevent the corrosion of steel bars and resist chemical corrosion. Permanent waterproof effect, is a non-toxic, odorless, non-polluting environmental protection product. code mark CCCW-cement-based permeable crystalline waterproof material; C-cement-based permeable crystalline waterproof coating. Labeled by name and in standard numbering order. Cement-based permeable crystalline waterproof coating is marked as: CCW C GB 18445 -2012 Features ●Environmental protection, non-toxic, excellent compatibility with other materials; ●The construction method is simple and labor-saving; ●It has unique ability to breathe, anti-corrosion, anti-aging, and protect steel bars; ●It has strong water pressure resistance, strong penetration ability and long-term self-healing ability. . Performance [Execution standard GB 18445-2012 "Cement-based penetrating crystalline waterproof coating"] serial number Test items standard requirement 1  Exterior Homogeneous, no lumps 2  Moisture content / % ≤ 1.5 3  Fineness/0.63mm sieve residue/% ≤ 5 4  Chloride ion content / % ≤ 0.10 5  Constructability  After mixing with water Scratch and paint barrier-free  20min Scratch and paint barrier-free 6  Flexural strength / MPa, 28d ≥ 2.8 7  Compressive strength / MPa, 28d ≥ 15.0 8  Wet base surface bond strength / MPa, 28d ≥ 1.0 9  Mortar impermeability  Impermeability pressure of coated mortar / MPa, 28d report measured value  Impermeability pressure ratio (with coating) / %, 28d ≥ 250  Impermeability pressure of removing coating mortar / MPa, 28d report measured value  Impermeability pressure ratio (remove coating) / %, 28d ≥ 175 10  Impermeability of concrete  Impermeability pressure of coated concrete / MPa, 28d report measured value  Impermeability pressure ratio (with coating) / %, 28d ≥ 250  Impermeability pressure of decoated concrete / MPa, 28d report measured value  Impermeability pressure ratio (remove coating) / %, 28d ≥ 175  Second impermeability pressure of coated concrete / MPa, 56d ≥ 0.8 Application field It is widely used in cement mortar, new and old concrete buildings and structures for water-facing and back-water waterproofing. Such as: basement, subway, toilet, kitchen, reservoir, swimming pool, water storage building, culvert, concrete pavement, etc. Packaging and storage ●Packing: sealed iron drum, 20kg/drum or bag. ●Storage: Store in a dry place. It is strictly forbidden to store in the open air. Different types are stored separately to prevent moisture. ●Transportation: placed vertically; prevent from sun and rain; prevent collision, keep the package intact; light loading and unloading, do not throw.

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NWT321 cement-based permeable crystalline waterproof coating


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