Cromar Cromaprufe - Rubberised Bitumen Emulsion

Rubberised Bitumen Emulsion for Waterproofing and Damp-Proofing

Cromar Cromaprufe is a versatile, rubberised bitumen emulsion designed to prevent water ingress and dampness in walls and floors. Suitable for both interior and exterior applications, it provides a waterproof membrane on concrete and brick foundations, retaining walls, and bridge abutments. Additionally, it serves as an effective adhesive for wood block floors and mosaics, and offers a key for plaster on challenging surfaces.

Key Features & Benefits

• Waterproofing: Forms a durable membrane to prevent water ingress and dampness.
• Multi-Purpose: Suitable for use as an adhesive for wood blocks, mosaics, expanded polystyrene, and cork tiles.
• Surface Preparation: Provides a key for plaster on difficult surfaces like gloss-painted walls and old tiles.
• Protection: Shields concrete structures against sulphate attacks present in soils.
• Easy Application: Can be applied by brush to damp (not waterlogged) surfaces.

Product Details

• Colour: Brown upon application, dries to black.
• Coverage: Approximately 2 m² per litre per coat.
• Drying Time: Varies with temperature; ensure each coat is fully dry before applying the next.
• Application Methods: Brush.
• Storage: Store between 5°C and 40°C; protect from frost.
• Shelf Life: Minimum of 12 months in tightly sealed containers.

Application Instructions

1. Surface Preparation: Ensure surfaces are sound, stable, and free from dust, dirt, grease, oil, and loose matter.
2. Dampening: For porous or hot dry surfaces, dampen with clean cold water before application.
3. Mixing: Stir well before use.
4. Application: Apply by brush. Do not apply to external surfaces in wet weather or if rain is threatened.
5. Ventilation: Ensure good ventilation in confined areas.
6. Multiple Coats: In multi-coat applications, allow each coat to dry completely before applying the next.

Limitations

• Not advised for interior walls below ground level due to potential exposure to free water or water pressure.
• Do not apply when rain is imminent.
• Avoid using gloss paints or oil-based products over Cromaprufe.

Cleaning of Tools

Clean tools with warm water before Cromaprufe sets. Once set, remove as much bitumen as possible by scraping, then clean with white spirit.