How should I prepare my surface before adding protective coatings?

Cleanliness is Key

Begin by making sure the epoxy surface is completely clean. Remove all dust, grease, oils, and debris with a suitable cleaner or isopropyl alcohol. Any contaminants left behind can affect how the next layer bonds, possibly causing peeling or reduced durability.

• Use a lint-free cloth to avoid leaving fibres.
• Allow the surface to dry fully before proceeding.

Surface Sanding and Priming

Once clean and dry, you may need to lightly sand the surface to create a suitable profile for the protective coating. Use fine-grit sandpaper for an even, matte finish without deep scratches. Remove sanding dust thoroughly. On some substrates, priming is beneficial—always consult individual product guidelines, such as those for Prolux PU coating, to determine if a primer is required for better adhesion or long-term performance.

Practical Tips Before Coating

Double-check the compatibility of your protective coating with the underlying epoxy. Avoid applying coatings in damp or dusty environments, and ensure all products are at room temperature for best results. If the finish is important for appearance, like with decorative countertops, consider using a polishing system such as an Epoxy Resin Polishing System beforehand for optimal gloss and smoothness.