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Use RLA Universal Primer for: Priming porous and non-porous substrates like concrete and tiles to ensure strong adhesion of levelling compounds and adhesives
RLA Universal Primer is a rapid-drying, solvent-free, water-based acrylic primer specifically designed for professional application on both porous and non-porous substrates. Its low VOC formulation makes it ideal for indoor environments and compliant with Australian safety standards. Whether you're working on ceramic tiles, burnished concrete, or painted surfaces, this primer ensures enhanced adhesion for levelling compounds and cement-based tile adhesives. Easy to apply and quick to cure, it's perfect for busy Australian trade professionals needing reliable performance with minimal downtime.
Key Features of RLA Universal Primer
- Water-based, low VOC formula for safer indoor use
- Compatible with porous and non-porous substrates including tiles and painted surfaces
- Rapid-drying – ready to use in as little as 30 minutes
- Enhances adhesion of levelling compounds and adhesives
- Easy to apply with roller or brush
Technical Overview
- Chemical Properties: Water-based acrylic
- Application Temperature Range: 5°C to 35°C (41°F to 95°F)
- Coverage Rate: 5 to 10 m² per litre depending on substrate porosity
- Drying Time: 30 to 60 minutes at 23°C (73°F)
- Shelf Life: 12 months in unopened container
Trade Professional Information
- Required Tools: Roller or brush (e.g., Monarch or Uni-Pro)
- Trade-Specific Tips: For very porous substrates, use a second diluted coat for optimal absorption
- Common Issues and Solutions: For glossy tiles, avoid application or use light sanding for improved adhesion
Storage and Shelf Life
- Storage Requirements: Store in a dry area off the ground
- Shelf Life Information: 12 months from production in original unopened container
- Temperature Considerations: Do not store or apply in conditions below 5°C or above 35°C
Certifications
- VOC Compliant – Meets Australian environmental standards
- ASTM F2170 – Moisture testing compatibility
Frequently Asked Questions About RLA Universal Primer
Q: How should I apply RLA Universal Primer on porous concrete?
A: Dilute 1 part primer with 2 parts clean water and apply with a roller or brush. For very porous surfaces, a second coat diluted 1:3 may be needed. Allow to cure for 30 minutes.
Q: How fast does RLA Universal Primer dry?
A: It dries in approximately 30 to 60 minutes at 23°C depending on substrate porosity and ambient conditions. The film should be transparent and tack-free before proceeding.
Q: Is this primer compatible with ceramic tiles?
A: Yes, but only on water-based painted or matte ceramic tiles. Avoid glossy or wax-coated tiles unless lightly sanded to enhance adhesion.
Q: What if the primer isn’t adhering well?
A: Ensure the surface is properly cleaned and abraded if necessary. For non-porous substrates, use the primer undiluted and allow full drying before overlaying.
Q: What safety precautions should I follow?
A: Wear gloves, eye protection, and ensure good ventilation. Avoid inhaling vapours and contact with skin or eyes. Always follow Australian safety regulations and use PPE.
Use RLA Universal Primer for:
- Priming standard and porous concrete floors prior to levelling
- Sealing painted surfaces to improve adhesion of adhesives
- Preparing ceramic tiles for overlay installations
Why Use RLA Universal Primer:
- Quick-drying formula minimises jobsite downtime
- Excellent adhesion across varied substrates
- Water-based and low odour – ideal for indoor environments
How to apply RLA Universal Primer:
- Identify substrate as porous or non-porous using the water-drop method
- For porous surfaces, dilute 1:2 (primer to water) and apply with roller
- For non-porous surfaces, apply neat (undiluted) directly
- Allow drying to a transparent film (30–60 minutes)
- Proceed with application of levelling compounds or adhesives
RLA Universal Primer limitations:
- Do not apply on glossy or wax-coated ceramic tiles
- Not suitable for external applications or substrates with rising damp
- Drying time may be extended in cold or high humidity conditions
Safety precautions when using RLA Universal Primer:
- Personal Protective Equipment: Gloves, goggles, respiratory protection
- Ventilation: Use in well-ventilated areas only
- Handling: Avoid contact with eyes and skin; do not inhale vapours
- Store out of reach of children and keep sealed when not in use
RLA Universal Primer can be used on the following substrates:
- Standard Concrete – ensure clean and dry surface
- Burnished Concrete – light sanding recommended
- Ceramic Tiles – matte or lightly abraded only
- Water-Based Painted Surfaces – free from wax or polish
- Liquid Waterproofing Membranes – check compatibility with RLA Technical team
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