Polymer Cement Waterproof Membrane

Polymer Cement Waterproof Membrane (model YT-690, flexible grade) is a two-component, polymer-modified cementitious waterproof system that combines a liquid polymer emulsion with a cement-and-additive powder component. Once mixed and cured, the system forms a seamless, rubber-like elastic film that bridges fine cracks and stretches with substrate movement instead of rigidly cracking. It is engineered for areas subject to thermal movement, vibration, and moderate hydrostatic pressure, where a conventional rigid slurry would fail. The polymer-to-cement ratio is tuned so the film stays flexible at low temperature while retaining strong wet-bonding to mineral substrates. Applied over prepared concrete, cement render, or masonry, it provides an elastic waterproof barrier that can be tiled over once cured, making it a practical choice for wet-area and high-movement zones rather than a decorative coating.

Our dedicated coating line runs the liquid emulsion and powder component on matched tooling, so each drum of polymer and each bag of powder leave the plant calibrated to the same formulation. A computerized rheology and tensile-strength check on every batch verifies elongation, tensile strength, and wet bonding before shipment, which means distributors receive consistent drum-after-drum flexibility rather than formula drift across seasons. Because the liquid and powder are made under one roof in Deqing, set ratios stay exact and reclamation complaints from mismatched components are rare.

- Balconies, terraces and rooftop gardens - thermal movement and foot vibration demand an elastic film that stretches instead of cracking, protecting the slab from rainwater ingress.

- Expansion joints and high-movement details - the high polymer content bridges joint movement up to 2 mm where rigid cementitious mortars would telegraph cracks through.

- Swimming pools and underground foundations - wet-bond strength and 0.3 MPa impermeability hold up under sustained hydrostatic pressure below or above ground.

- Internal wet areas of high-rise buildings - seamless, non-toxic film works under tiling in bathrooms and kitchens where standing water is routine.

Formulation flexibility and crack-bridging grade can be adjusted to project movement requirements; custom drum and bag labeling, private-brand packaging, and type-specific (higher-flex vs. higher-strength) variants are available on request.

The liquid polymer is packed in reinforced, impact-resistant drums and the specialized powder in multi-layer moisture-proof bags, then palletized, strapped and shrink-wrapped for export. Goods ship ex-factory (EXW) from the Deqing, Zhejiang manufacturing base, with finished products consolidated for forwarding through Ningbo or Shanghai ports; SDS/chemical safety documentation is supplied for liquid components.

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