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বাংলা 
Liquid Waterproof Membrane
This product is a water-based, single-component waterproof coating made from polymer-modified emulsified asphalt and various additives. It combines the excellent waterproof performance of traditional membranes with the convenience of coating application. After application, it forms a highly elastic, seamless rubber-asphalt waterproof film, known as the “breathable liquid membrane.”
Excellent waterproofing: forms a dense, seamless layer that completely prevents leaks.
High elasticity & crack resistance: large elongation, can effectively cover fine cracks in substrate; adapts to temperature differences and structural movement.
Strong adhesion: bonds firmly to cement-based substrates, asphalt membranes, metal panels etc.
Good weather resistance: resists aging; stable performance under both high and low temperatures.
Easy application: cold application (no heating needed); spread or roll; safe and environmentally friendly.
Complies with JC/T 408-2005 “Emulsified Asphalt Waterproof Coating”, which covers classification, requirements, test methods, inspection, packaging, marking, transportation and storage for water-emulsion asphalt waterproof coatings.
| Step | Details |
|---|---|
| Substrate Preparation | Substrate should be level, solid, clean; free of visible water or oil. Cracks or defects must be repaired in advance. |
| Detailing / Nodes | Apply reinforcing layer at nodes (corners, pipe roots etc.); mesh reinforcement is recommended. |
| Coating Application | Stir well. Use trowel or roller to apply in 2-3 coats. Between coats, wait until the previous coat is surface dry (approx. 4-6 hours at normal temperature). |
| Usage / Thickness | Final dry film thickness should be ≥ 1.5 mm. Theoretical usage roughly 2.5-3.0 kg/m². |
| Specification | Value |
|---|---|
| Packaging | 20 kg |
| Appearance / Color | Black / Dark Grey viscous liquid |
During transport, protect against strong sunlight, rain, freezing, and mechanical damage.
Store in ventilated, dry, shaded area at 5-35 °C; avoid high temperature exposure.
Unopened product shelf life: 12 months under proper storage conditions.
Working environment: apply only when temperature is above 5 °C; avoid application during rain or strong winds.
Drying time: fully cured film takes about 24-48 hours; avoid walking on or doing subsequent work until fully cured.
Protection & health: ensure good ventilation at site; wear gloves / eye protection; if product gets into eyes, rinse with plenty of water & seek medical advice.
