Single-component polymer cement-based waterproof coating
JS Waterproof Coating
YR-9(8)804-02
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YRong JS Waterproof Coating is a water-based, eco-friendly waterproof material made from high-performance polymer emulsion. Mixed with cement on-site, it cures into a rigid-flexible composite membrane with strong adhesion, crack resistance, and long-term water resistance—for wet areas, basements, and selected exterior scopes.
A single-component emulsion mixed with cement on site forms a rigid-flexible waterproof film: bridges minor cracks, bonds firmly to concrete/mortar, works on damp (non-ponding) substrates, and can be brushed, rolled, or troweled without sagging on vertical surfaces.
Factory terms
Ordering & supply
Typical factory terms. Color cards, samples, and documents are available on inquiry; special packs or lead times can be discussed.
- Pack sizes
- 5 / 10 / 20 / 25 kg; larger packs on request
- Sample MOQ
- 5 kg
- Bulk MOQ
- 1,000 kg
- Lead time
- Standard 7–12 days. Color can be customized; special cases negotiable.
- Documents
- MSDS, marine reports, and business license downloadable on Factory & Qualifications; destination-market certificates on inquiry
Product video
Product highlights
Water-based and low VOC; damp-surface applicable; rigid-flexible performance with easy brush/roller/trowel application.
Key features
- Rigid & flexible composite — bridges minor cracks and adapts to substrate movement.
- Superior bonding — firmly adheres to concrete and mortar; resists hollows and delamination.
- Damp-surface applicable — can be applied with no standing water, helping shorten schedules.
- Water-based & non-toxic — low VOC; suitable for bathrooms, kitchens, and drinking-water tanks.
- Water/alkali resistant and breathable — stable under long-term exposure; reduces blistering.
Applications
- Bathrooms, kitchens, balconies, laundry rooms
- Basements, underground garages, exterior walls, window sills
- Pipe roots, internal corners, construction joints
- Landscape pools, fire/drinking water tanks; non-exposed roofs, roof renovation, underfloor heating moisture barriers
Technical data
- Standard GB/T 23445; single-component emulsion (mix with cement on site)
- Mix ratio: liquid : cement = 1 : 0.8–1 (by weight)
- Tack-free approx. 4–6 h (25°C); full cure about 7 days (25°C)
- Recommended thickness 1.0–1.5 mm; coverage about 1.4–2.4 kg/m² (by thickness)
Application notes
- Substrate solid and clean—no dust, oil, or standing water; reinforce pipe roots and corners first
- Mix liquid and cement evenly; de-aerate; apply thin cross coats (at least 2–3); no traffic/water/rain before cure
Packaging & storage
- 5 kg / 10 kg / 20 kg / 25 kg; larger packs on request
- Unopened shelf life is 12 months (5–35°C)
- Protective layer recommended for exposed areas
Recommended system
- Prep: solid, clean base without standing water
- Details first, then field coats in thin cross layers (2–3 coats)
- Cure fully before traffic or water; add protection on exposed areas