JS Polymer-Modified Cementitious Waterproof Coating

Product Overview

An eco-friendly dual-component coating combining organic polymers and inorganic cementitious materials. Compliant with GB/T 23445-2009 national standards, it forms a flexible yet durable waterproofing membrane with superior adhesion to diverse substrates.

Key Features

Substrate Versatility
Bonds to wet/dry surfaces: masonry, concrete, metal, wood, plastics (EN 14891)

Structural Performance
Tensile strength: ≥1.8 MPa | Crack bridging: ≤0.8mm (EN 14891)

Environmental Safety
Zero VOCs, non-toxic (ISO 16000)

Application Advantages
Vertical non-sag application | Moisture vapor transmission: ≥0.15 kg/m²·24h

Durability
Alkali resistance (pH 14) | Freeze-thaw stable (-20°C to +80°C)

Technical Specifications

Applications

Suitable Substrates

Concrete | Tile | metal | Wood | PVC | EPS | Asphalt | Rubber | SBS/APP Membranes

Project Types

Building interiors: Bathrooms, kitchens, basements

Civil structures: Tunnels, bridges, reservoirs

Industrial: Water treatment plants, containment areas

Restoration: Historical buildings, leak repairs

Application Guidelines

Environmental Conditions

Minimum temperature: +5°C

Relative humidity: ≤85%

Prohibited during precipitation

Mixing Protocol

Ratio: 1 part liquid : 2.5 parts powder by weight

Mix 5 minutes → Rest 2 minutes → Remix

Pot life: 60 minutes @ 25°C

Coating Procedure

Apply 2 coats (cross-direction)

Minimum thickness: 1.2mm

Recoat interval: 4-6 hours (touch-dry)

Critical Notes

Never add water after mixing

Topcoat colored layers with pH-neutral sealers

Protect from freezing during curing