Use XPRESS PRIMER H2O PLUS for: Preventing blistering and delamination of coatings due to residual moisture, enhancing adhesion, and reducing efflorescence.
XPRESS PRIMER H2O PLUS is a high-performance, single-component vapour barrier primer designed for use on concrete and mineral surfaces. Unlike traditional primers, it does not alter the surface profile but enhances adhesion for overlaid membranes and coatings. Fast-drying and water-resistant, it allows finishes to be applied within just 1 hour. Its unique colour-changing formulation provides a clear visual indication of when it's ready for overcoating, reducing guesswork and ensuring optimal application.
Key Features of XPRESS PRIMER H2O PLUS
- Forms a strong vapour barrier against residual moisture
- Can be applied over damp and green concrete
- Fast drying – allows application of finishes after only 1 hour
- Water-resistant for enhanced durability
- Unique colour-changing formula for easy application
- Reduces efflorescence when used on screeds and renders
- Compatible with Xpress Multi Pro Membrane for porous surfaces
Technical Overview
- Chemical Properties: Water-based polymer dispersion
- Application Temperature Range: 5°C - 35°C
Trade Professional Information
- Required Tools: Brush or medium nap roller
- Trade-Specific Tips: Ensure surfaces are clean, dry, and free from contaminants before application
- Common Issues and Solutions: If applied in humid conditions, allow additional drying time before overcoating
Storage and Shelf Life
- Store in a cool, dry area away from direct sunlight
- Keep off cold floors to avoid temperature fluctuations
- Shelf life: 12 months in original unopened packaging
Certifications
- Compliant with Australian building standards
Frequently Asked Questions About Gripset Xpress Primer H2O Plus
Q: Can Gripset Xpress Primer H2O Plus be applied over damp concrete?
A: Yes, it is designed for application over damp and green concrete to prevent moisture-related issues.
Q: How long does it take to dry?
A: It dries in approximately 1 hour at 23°C and 50% RH.
Q: What substrates can this primer be applied to?
A: Suitable for concrete, masonry, screed, render, aerated concrete, plasterboard, and compressed fibre cement sheeting.
Q: Does it change colour when drying?
A: Yes, it transitions from milky white to a slight green tinge before drying clear.
Use XPRESS PRIMER H2O PLUS for:
- Sealing damp and green concrete surfaces
- Providing a vapour barrier before membrane application
- Preventing blistering and delamination of coatings
- Reducing efflorescence in screeds and renders
Why Use XPRESS PRIMER H2O PLUS:
- Fast drying – apply finishes within 1 hour
- Improves adhesion of coatings and membranes
- Water-resistant for increased longevity
- Colour-changing technology ensures correct application timing
How to apply XPRESS PRIMER H2O PLUS:
- Ensure the surface is clean, sound, and free from contaminants.
- Apply one coat using a brush or medium nap roller.
- Allow the primer to transition from milky white to green before drying clear.
- Once clear, the surface is ready for overcoating.
XPRESS PRIMER H2O PLUS Limitations:
- Not suitable for surfaces with continuous rising moisture or negative hydrostatic pressure
- Do not apply in temperatures below 5°C or above 35°C
- Do not use as a primer over existing coatings
Safety precautions when using Gripset Xpress Primer H2O Plus:
- Personal Protective Equipment: Gloves and safety glasses recommended.
- Ventilation: Ensure adequate airflow when applying.
- Handling: Clean up spills with water before drying.
XPRESS PRIMER H2O PLUS can be used on the following substrates:
- Concrete
- Concrete block
- Screed and render
- Masonry
- Aerated concrete
- Compressed fibre cement sheeting
- Plasterboard
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