Description
RIW Sheetseal Primer Bitumen Adhesion Primer
RIW Sheetseal Primer is a high-performance bitumen-based primer developed to promote maximum adhesion of RIW Sheetseal 226 self-adhesive waterproofing membranes to prepared concrete, masonry and other mineral substrates. It penetrates porous surfaces, improving membrane bond strength and ensuring reliable long-term waterproofing performance on vertical and inclined applications.
Specifically formulated for use as part of the RIW Sheetseal 226 waterproofing system, the primer is quick drying and easy to apply by brush, roller or spray. It creates the ideal prepared surface for installing self-adhesive membranes on basements, foundations, retaining walls and other below-ground waterproofing projects.
Key Features & Benefits
- Bitumen-based waterproofing primer
- Designed for RIW Sheetseal 226 membranes
- Improves adhesion on porous substrates
- Ideal for vertical and inclined surfaces
- Fast drying formulation
- Easy brush, roller or spray application
- Excellent penetration into masonry and concrete
- Suitable for below-ground waterproofing systems
- Helps achieve secure membrane bond
- Compatible with Type A waterproofing systems
- Simple and economical to apply
Applications
- Priming concrete before membrane installation
- Priming masonry walls
- Basement waterproofing
- Foundation waterproofing
- Retaining walls
- Ground floor waterproofing
- Vertical waterproofing applications
- Inclined waterproofing surfaces
- Below-ground structures
- RIW Sheetseal 226 waterproofing systems
Technical Information
- Product Type: Bitumen adhesion primer
- Colour: Black
- Base: Bitumen solution
- Coverage: Approximately 7m² per litre per coat
- Drying Time: 2–4 hours
- Overcoating: When touch dry (maximum 7 days)
- Flash Point: 34°C
- Application Methods: Brush, roller or spray
- Pack Sizes: 5L and 25L
- Use: Primer for RIW Sheetseal 226 membrane system
Frequently Asked Questions
What is RIW Sheetseal Primer used for?
It is used to prepare concrete and masonry surfaces before installing RIW Sheetseal 226 self-adhesive waterproofing membranes.
Which substrates require the primer?
The primer should be applied to vertical and inclined concrete and masonry surfaces before membrane installation.
Can it be used on insulation boards?
No. The primer should not be applied to insulation boards or insulated concrete formwork (ICF) systems.
How long does the primer take to dry?
Under normal conditions it dries in approximately 2–4 hours and should be covered with the membrane within 7 days.
How is the primer applied?
It can be applied using a brush, roller or suitable spray equipment.
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