PRIMER FAQS
All your primer questions answered here:
What is the best epoxy primer?
Solvent-free epoxy primers are generally deemed better because they’re odourless, contain fewer health risks, and comply with stricter environmental and safety regulations. However, the best epoxy primer for you will entirely depend on your requirements. For example, if you need a primer for metal, we recommend our UPS 126 MCU URETHANE PRIMER, while for concrete primers we suggest UPS 909 PP POROUS PRIMER.
For anti-corrosion, we recommend UPS 914 DMWB DIRECT TO METAL - WATER BASED PRIMER and choose UPS 901 SAP SILICONE ADHESION PROMOTOR for silicone coatings. Please refer to our UPS primers product section above for further insights and specification details.
Can epoxy primers be sanded?
Epoxy primers can be sanded, but due to being more durable and chemically crosslinked, they’re harder to sand compared to other polymer primers, such as urethane or acrylic. If you do sand your epoxy primer, wait 12-24 hours until it has fully cured.
Can I paint over epoxy primer?
Primers are designed as a base layer and a strong foundation for other protective coatings to be applied. The recoat window after priming is typically no longer than 24 hours. If you exceed this duration, sanding is required.
Can you use epoxy primer on plastic?
Epoxy primers can be applied to plastic as long as your plastic surface is properly prepared. However, epoxy primers will not adhere to all plastic surfaces, so ensure you check the product specifications before purchasing.
How to apply a cement primer on a wall?
To apply a cement primer to a wall, follow these instructions:
Clean the wall, removing any dirt, grease, dust or loose particles.
Fill any cracks or holes with cement filler/putty.
Roughen any smooth surfaces for better adhesion.
Apply the correct primer with a brush, roller, or spray.
If recoating is required, allow enough time for the primer to dry fully.
What is cement primer?
Cement primers are specially formulated polymer primers designed for cementitious surfaces, including concrete, cement plaster, and brickwork. The purpose of a cement primer is to seal porous surfaces, while laying a strong foundation for subsequent protective coatings like paint, epoxy or polyurethane topcoats to remain more durable and last longer.





















