← Back to How do you apply resin to a pool?

Noticing bubbles in your cured resin finish can be frustrating, especially if you’ve put effort into achieving a smooth, waterproof result. Fortunately, you can correct this common issue with a few practical steps and prevent it from happening again.
How to Fix Bubbles in Resin
Once the resin has fully cured, gently sand the affected area using fine-grit sandpaper until the surface feels even. Clean away any dust and ensure the area is dry. Next, mix a small fresh batch of your chosen resin, such as the Resin Fibreglass Repair Kit, following the manufacturer’s instructions. Apply a thin, even layer using a suitable roller or brush to restore a smooth finish and optimal waterproofing.
Tips for Avoiding Bubbles on Reapplication
- Mix thoughtfully: Stir resin and hardener slowly to limit air introduction. Quick, vigorous mixing often causes bubbles to form.
- Apply gradually: Spread the resin in thin layers. Using sponge or short-pile rollers, available from Resin & Paint Application Rollers, helps distribute resin smoothly across surfaces.
- Control your workspace: Work in a dust-free and cool environment, as heat and humidity can encourage bubbles or trap dust.
When This Matters Most
Eliminating bubbles is especially important for pool repairs or surfaces exposed to constant water. A bubble-free finish ensures long-term waterproofing and structural durability, protecting your pool or repair site from leaks and premature wear.
Related products
Related guides
By carefully removing and preventing bubbles in your resin finish, you maintain the visual appeal and structural strength crucial for pool repairs. For more detailed guidance on applying resin to pools, return to our main application guide.
Google