General-purpose single-component polyurethane sealant

Eucolastic 1NS is a one-component, polyurethane-based elastic joint sealant designed for sealing movement joints in concrete and masonry structures.

Provides excellent adhesion on concrete, brick, metal, and wood surfaces without the need for a primer in many cases.

Retains flexibility and elasticity, accommodating joint movement while preventing cracks and leaks.

Suitable for both interior and exterior applications, exposed to UV, rain, and temperature fluctuations.

Ensures durable, watertight joints for industrial, commercial, and residential constructions.

Technical Specifications and Features

Base: Polyurethane

Color: Grey, White, Black (custom colors available)

Skin time: 30–60 minutes at 23°C / 50% RH

Cure rate: ~3 mm/day at 23°C / 50% RH

Shore A hardness: 45 ± 5

Movement accommodation: ±25%

Tensile strength: ~2.0 MPa

Elongation at break: ≥ 500%

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

Packaging: 290 mL cartridges / 600 mL sausages

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

Benefits and Advantages

Durable waterproofing for expansion, construction, and movement joints.

Elastic and crack-resistant, accommodating ±25% joint movement.

Excellent resistance to weathering, UV radiation, and chemical exposure.

Easy application from cartridge or sausage, ready to use.

Can be painted over after curing, maintaining aesthetics.

Minimizes joint maintenance and repair costs.

Download Technical Datasheet

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