Tremproof 250GC is a high-performance, flexible, liquid-applied waterproofing membrane based on advanced polyurethane technology.

Provides seamless, monolithic protection against water penetration for horizontal and vertical surfaces.

Suitable for bridges, terraces, podiums, balconies, water tanks, and tunnels.

Can be applied directly on concrete, masonry, and other structural substrates with excellent adhesion.

Remains elastic and durable, accommodating substrate movements and cracks up to 2 mm.

Technical Specifications and Features

Base: Polyurethane-based liquid membrane

Appearance: Grey or black liquid (varies by formulation)

Density: ~1.4 g/cm³

Shore A hardness: ~65 after curing

Elongation at break: > 500%

Crack-bridging ability: Up to 2 mm

Application temperature: +5°C to +40°C

Cure time: Tack-free ~4–6 hours; full cure 7 days (depending on temperature and humidity)

Packaging: 20 L, 200 L drums

Shelf life: 12 months in unopened containers, stored in cool, dry conditions

Benefits and Advantages

Seamless, crack-bridging waterproofing for long-term protection.

High durability and weather resistance, including UV, rain, and freeze-thaw cycles.

Prevents leakage and water ingress in critical structures.

Flexible and elastic, allowing for structural movements without failure.

Reduces maintenance costs and enhances the lifespan of the structure.

Easy to apply using a brush, roller, or spray.

Compatible with most construction substrates.

Download the technical datasheet. 

(Product images are for illustrations purposes only and may differ from the actual product.)