What You’ll Need

• CROP 2K Fiberglass Putty – 750 ml + Hardener: For durable crack and cavity filling.
• Resin & Paint Application Rollers – Short-Pile, Large, and Sponge Types: For even resin and paint application.
• Protective gloves and mask
• Mixing tools (spatula or plastic mixing board)
• Sandpaper (various grit, preferably wet/dry)
• Primer suited to resin surfaces
• Paint (acrylic or resin-compatible, depending on project)
• Clean cloth

Step 2: Fill Cracks, Dents or Cavities

For areas that require filling, select a suitable filler that bonds well to resin and provides sufficient mechanical strength, particularly if the damage is deep or structural. CROP 2K Fiberglass Putty – 750 ml + Hardener is purpose-built for such tasks, offering strong adhesion and easy sanding after curing. Mix the putty and hardener thoroughly, and apply it with a spatula, pressing firmly into cracks or dents. Apply filler in thin, manageable layers to reduce the risk of air bubbles or shrinkage.

Allow the filled area to cure according to the manufacturer’s instructions before continuing. Multiple thin layers may be needed for deeper repairs, ensuring each layer cures fully before adding the next.

Step 4: Prime and Paint the Resin

Select a primer formulated for resin surfaces; this step is particularly important for ensuring paint adhesion and a uniform final appearance. Apply the primer in thin, even coats, allowing each to dry completely. Once primed, choose a suitable paint (acrylics are popular for artistic resin, while industrial coatings may be preferable for functional pieces). Allow complete curing between each stage for best results.

Depending on project size and detail, use a brush for intricate sections or a Resin & Paint Application Roller for broader areas. Choose the right roller or brush for an even, streak-free finish, and apply multiple thin coats rather than one thick layer.