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

1. Environmental Conditions

   • Minimum temperature: +5°C

   • Relative humidity: ≤85%

   • Prohibited during precipitation

2. 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

3. Coating Procedure

   • Apply 2 coats (cross-direction)

   • Minimum thickness: 1.2mm

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

4. Critical Notes

   • Never add water after mixing

   • Topcoat colored layers with pH-neutral sealers

   • Protect from freezing during curing