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If you’re planning to apply epoxy resin over a painted surface, using an adhesion maximiser can be key to achieving a reliable, professional finish. Here, we’ll look at how adhesion primers work, when to use them, and product choices to support lasting results.
What Is an Adhesion Maximiser?
An adhesion maximiser—often in the form of a dedicated primer—prepares surfaces for the best possible bond with epoxy resin. It creates a stable layer that helps resin adhere to substrates such as painted timber, tiles, or concrete, and is especially valuable on smooth or sealed coatings where direct resin application may not anchor properly. The right primer increases the surface’s ‘key’, minimising the risk of peeling or delamination over time.
How to Use an Adhesion Primer with Epoxy Resin
For optimal results, ensure the painted surface is fully dry, clean, and lightly sanded to remove gloss or contaminants. Apply the adhesion maximiser (such as Epoxyprimer Universal Water-Based Floor Primer) with a roller, brush, or spatula for even coverage. Allow the primer to cure completely—typically 24 to 48 hours—before pouring your chosen epoxy resin on top. This foundation ensures a durable, lasting finish for both decorative and functional projects.
When Adhesion Maximisers Matter Most
- Painting over slick, sealed, or glossy surfaces where resin may not grip directly
- Applying resin for high-traffic flooring, tables or artistic works that require durability
- Surfaces with unknown paint types or varied absorbency
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Whether you’re working on floors, art, or crafts, choosing the right adhesion maximiser ensures your epoxy resin adheres securely to painted surfaces. For more in-depth guidance on this subject, see our hub on applying epoxy resin to a painted surface.