Waterproof Coating

Waterproof General description CSA Polymer modified Cementitious Waterproof Coating is a two-component Polymer modified Cementitious Waterproof material composed of dry powder and emulsion, and precisely mixed with high-quality cement, ground hard filler and additive in factories. It bond permanently with base materials. Excellent adhesive ability, flexibility, durability and water-resistance, so it can be used widely in various kinds of waterproofing projects. Technical Data According to standard JC/T894-2001Polymer modified Cementitious Waterproof Coating||Testing items Technical Data Solid Content,% 80 Tack-free time, h 1 3 Practical drying time, h 4 7 Tensile strength, MPa 2.5 Elongation at break,% 80 Heat resisting property pass Alkali resistance pass UV resistance pass Water impermeability 30min,0.3MPa impermeable Wet Substrate bond strength, MPa 1.0 Impermeabilityback,MPa 0.6 Impermeability(face,MPa 1.0 Properties: 1. Good flexibility can cover minuteness crack caused by various reasons. 2. Excellent adherence with surface of concrete and bricks. 3. Easily used by trowel and spatula, no leaking while uprightness. 4. Can be applied to wet basal surface or freshly placed concrete. 5. Good weatherability and UV resistance. 6. Can be applied to both the external and internal walls, bearing high water pressure whenever positive or negative. 7. Environmental product without toxin, smelling, pollution, radioactivity Applications 1. Base materials waterproofing of concrete, brickwork,, pre-cast concrete and floating brick, etc. 2. Waterproofing of building wall, floor and roof. 3. Waterproofing projects of underground car park, tunnel, drainage and water supply pipes, swimming pool and drinking water pool, etc. 4. Other waterproofing projects. Construction Methods: Substrate treatment 1. The substrate should be flat, no oil slicks, release agent, floating dust and other loosen material which influence coherence. 2. The concrete fallen off or loosening have to be removed, and the larger holes, cracks should be repaired first. 3. Its better for the inside corner and outside corner to be arc angle. 4. The surface of freshly placed concrete should be dry completely prior to commencement of construction. 5. Its better to deal with substrate by admixtureemulsion : water = 1:1before brush, especially for the loose one. Wet basal surface To wet basal surface thoroughly, operation can be processed after water is completely infiltrated into concrete and without left. Mixing First, dump emulsion into the clean container, then start to use electric blendersPut dry powder slowly in appropriate proportion(powder components : emulsion = 1 : 0.6),blending completely to equality dope without agglomeration(about 4-5min) .It must be used up in the recommended timeabout 1 hour. Construction Spread slurry on the basal surface which treated well by coating knife or spatula. According to the requirement brush at least 2 layers (total thickness of 1.5-2.0mm). Until the first layer slightly dry (just non-stick hands) can make the second which depending on the substrate density, temperature and humidity in 1- 3 hours. Dosage Estimates Packing Powder component 25kg/ bag Emulsion 15kg/barrel Dosage1.5 1.7kg/.mm Tips of Usage Polymer Modified Cementitious Waterproof Coating requires 5 45°C and relative humidity less than 85% of the ventilation condition. If the temperature is below 5°C or rainy day, construction cant be processed. There will be discrepancy of its color caused by the density and humility of working surface. Its should be pay attention to prevent from rain, strong sunlight or frigid in first two days. Tools and equipments should be washed well after working in time..