Decoimper - Polyurethane Membrane

DECOIMPER One-Component Polyurethane Waterproofing Membrane

DECOIMPER is a one-component, water-based polyurethane waterproofing membrane designed to create a seamless, flexible and durable protective layer on roofs, terraces, balconies and other surfaces exposed to rain and moisture.

It is suitable for flat and pitched roofs, with or without occasional pedestrian traffic. Once applied, it forms a joint-free waterproofing layer that helps protect the surface from leaks, moisture ingress and weather exposure.

Why choose DECOIMPER?

DECOIMPER is a practical waterproofing solution for renovation, repair and protection work. Its liquid application makes it ideal for areas with cracks, details, joints and difficult shapes where traditional sheet membranes can be harder to install.

The product offers strong adhesion to many common construction surfaces and can be applied by airless sprayer, roller or brush, depending on the project requirements.

Key Benefits

• One-component, ready-to-use waterproofing membrane.
• Water-based polyurethane formulation.
• Creates a seamless, joint-free protective layer.
• Suitable for flat and pitched roofs.
• Can be used on surfaces with or without occasional foot traffic.
• Rain resistant after approximately 4 hours.
• Walkable after approximately 48 to 72 hours.
• Helps seal cracks, fissures and surface imperfections.
• Suitable for tiling over when used according to system requirements.
• Resistant to UV exposure, weather and temperature changes.

Suitable For

• Flat roof waterproofing.
• Pitched roof waterproofing.
• Terraces and balconies.
• Roof decks.
• Crack and leak repair.
• Renovation of damaged waterproofing layers.
• Surfaces exposed to rain, wind and moisture.
• Preparation of areas before tile installation, where suitable.

Compatible Surfaces

DECOIMPER can bond to many common construction materials when the substrate is correctly prepared.

• Concrete.
• Bitumen.
• Metal.
• Wood.
• Fibre cement.
• Existing suitable waterproofing layers.
• Other stable and prepared construction surfaces.

Technical Specifications

• Product: DECOIMPER
• Type: One-component polyurethane waterproofing membrane
• Base: Water-based
• Application: Airless sprayer, roller or brush
• Rain Resistance: approx. 4 hours after application
• Walkable: approx. 48 to 72 hours after application
• Coverage: approx. 0.3kg/m² undiluted, depending on substrate and system requirements
• Packaging: 4L and 15L buckets
• Finish: Seamless flexible waterproofing layer

Application Instructions

1. Ensure the substrate is clean, dry, stable and free from dust, grease, loose material or contamination.
2. Repair cracks, damaged areas and weak points before full application where required.
3. Apply DECOIMPER evenly using an airless sprayer, roller or brush.
4. Apply at the recommended consumption rate according to project and system requirements.
5. Allow approximately 4 hours before exposure to rain.
6. Allow approximately 48 to 72 hours before pedestrian traffic.
7. For tiled finishes, follow the correct waterproofing and tiling system specification.

Important Application Notes

• Do not apply to wet, frozen, unstable or contaminated surfaces.
• Drying and curing times may vary depending on temperature, humidity, ventilation and layer thickness.
• Protect freshly applied material from heavy rain, frost and unsuitable weather conditions during curing.
• Always check substrate compatibility before full application.
• For critical waterproofing areas, follow the full Decoproyec system specification and professional application guidance.

Professional Waterproofing for Roofs and Exposed Surfaces

DECOIMPER is a strong choice for contractors and property owners who need a flexible, seamless and durable waterproofing membrane for roofs, terraces, balconies and moisture-exposed surfaces.

Choose DECOIMPER for professional roof waterproofing, leak repair and long-lasting surface protection.