Cromar Bitumen Primer
- Suitable For: priming and sealing porous substrates
- Area of use: EXT
- Application Method: brush
- Time to full cure: 20 - 30 minutes
- Volume: 5L 25L
- Container Type: tin
- Type: primer
- Colour: black
- Brand: Cromar
- Manufactuer: Cromar
- Box Size: Single Box
Data Sheets
Cromar Bitumen Primer is a versatile solution designed to prime and seal porous substrates prior to bituminous material application. Its low viscosity and high penetration properties ensure effective sealing and promote superior adhesion for bituminous waterproofing systems and sheet coverings. Below are its key features:
- Versatile Application: Suitable for various surfaces including concrete, asbestos cement, metals (mild steel, zinc, and lead), slate, and lightweight concrete screeds, providing flexibility in usage.
- Effective Sealing: Seals porous substrates to prevent water penetration and enhance the durability of the waterproofing system.
- Promotes Adhesion: Enhances the adhesion of bituminous waterproofing systems and sheet coverings, ensuring long-lasting performance and reliability.
- Coverage Rates: Offers efficient coverage rates depending on surface porosity, ranging from 6-12m² per liter for metal surfaces, 6-8m² per liter for concrete, and 3.5-5m² per liter for lightweight concrete screeds and asbestos cement.
Prepare your roof for reliable waterproofing with Bitumen Primer, the essential foundation for a durable and effective waterproofing system.
For more information on Cromar, you can visit their website here.
Cromar Bitumen Primer is ideal for priming and sealing porous substrates prior to bituminous material application.
APPLICATION
- Surface Preparation:
- Prior to application, ensure surfaces are meticulously cleaned to remove oil, dirt, dust, and loose debris.
- For metal surfaces, eliminate loose rust with a wire brush and treat areas showing advanced corrosion with a rust inhibitor.
- Optimal Surface Conditions:
- Surfaces should be dry for optimal results, although Bitumen Primer can adhere to damp but not wet surfaces.
- The primer is resistant to rainfall within 20-30 minutes of application.
- Temperature Considerations:
- Do not apply in temperatures lower than +5°C to ensure proper adhesion and effectiveness.
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| Elementlength | |||||||
| up to 1,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
|
| Type of window frame material |
Minimum witdth of joints for a butled mounting b in mm |
Minimum witdth of joints for a inner mounting b in mm |
|||||
| Hard PVC (white) | 10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Hard PVC and PMMA (dark) (colour extruded) |
15 | 20 | 25 | 30 | 10 | 15 | 20 |
| Hard PUR integral foam | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Wood-aluminium-window | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (bright) |
10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (dark) |
10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Wooden window frame | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
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