Description
Roberts R48 Universal Primer
– 5 Litres
PRODUCT DESCRIPTION:
Roberts R48 Universal Primer is a rapid drying solvent free low VOC water based acrylic primer. For use over porous and non porous substrates such as ceramic tiles, painted surfaces (waterbased only) and sealed or burnished concrete floors. For extremely non porous, hard and tight substrates it is recommended that a light grind or sand be conducted to enhance adhesion. Roberts R48 Universal Primer is compatible with cement based ceramic tile adhesives and levelling compounds.
SURFACE PREPARATION:
- Subfloors must be dry, sound, clean and in accordance with the relevant Floorcoverings Australian Standards.
- Subfloors must also be free of wax, grease, oil, polishes, old adhesive, curing compounds, high levels of moisture and any other surface contaminants that may affect adhesion.
- If mechanical preparation is required prepare the floor using recommended preparation methods such as shot blasting, diamond grinding, to provide a roughened, clean, sound, and open porous surface.
- Thoroughly vacuum loose material and dust.
- The minimum subfloor temperature before commencing installation should be 10°C. Do not use solvents, or acid etching to clean the subfloor.
- Concrete floors must be dry sound, smooth and clean, in accordance with relevant Floorcoverings Australian Standards.
- For subfloors that display high moisture levels it is recommended an RLA Moisture Barrier be applied.
- Please contact RLA Technical Department for further details.
- Where temperatures are less than 5°C or greater than 35°C are encountered, please contact RLA Technical department for further details.
APPLICATION:
Porous Substrates
- Priming of standard concrete surfaces, dilute 1 part Universal Primer with 2 parts Clean Water.
- Apply primer using a roller or brush ensuring entire area is completely primed.
- Very absorbent concrete may require a second coat of Universal Primer diluted 1 part Primer with 3 parts Water.
- Allow to cure for 30 minutes.
Non-Porous Substrates
- Apply an even layer of Universal Primer NEAT (undiluted to non porous substrates) using a roller or brush ensuring entire area is completely primed.
- Allow primer to dry to a clear film (approx. 1 hour @23°C).
- Once Universal Primer is a tack free clear film, only then can levelling compounds be applied over the primer.
- For extremely non porous substrates it is recommended that a light grind or sand be conducted to enhance adhesion.
- Do not apply Universal Primer on ceramic tiles that have a high gloss coating.
MIXING:
- When diluting please ensure the primer and water are mixed thoroughly before use.
COVERAGE:
- Approximately 5 to 10m2 per litre.
- Spread rates may vary depending on substrate absorbency.
SETTING TIMES:
- Allow primer to dry to a clear film approximately 30 minutes to 1 hour (@ 23°C) before the application of subsequent products.
- Drying time may vary depending on substrate absorbency and climate conditions.
- Once Universal Primer is a tack free dry film, only then can levelling compounds be applied over the primer.
CLEAN UP:
- Clean tools immediately after use with water.
SHELF LIFE/STORAGE:
- 12-14 months when stored in original unopened packaging
- Shall be stored in a dry area off the ground.
PACKAGING:
- 5 Litre Containers
NOTES AND PRECAUTIONS:
- Drying times can be extended when applied in cold ambient temperatures.
- Do not apply Universal Primer on tiles that have a wax or excessively high gloss coating.
- Do not apply on substrates with rising damp.
- INTERNAL USE ONLY
SAFETY AND HANDLING:
- Refer to Safety Data Sheet – provided as a separate document to this TDS
