Bubbles or blisters in your Dura-Rubber pool coating typically form due to one or more of the following reasons:
1. Surface Contamination
• Oil, grease, or dust on the surface before application can prevent proper adhesion, leading to bubbles.
• Solution: Ensure the surface is clean and dry before applying Dura-Rubber. Use a degreaser and rinse thoroughly.
2. Trapped Moisture or Water Vapor
• If the surface isn’t completely dry before application, moisture can become trapped and cause bubbles as it evaporates.
• Solution: Let the surface dry fully, especially in humid conditions. If applying on concrete, use a moisture meter to confirm dryness.
3. Outgassing from the Substrate
• Porous surfaces like concrete or wood can release air as temperatures rise, causing bubbles in the coating.
• Solution: Apply a primer or thin first coat to seal the surface and prevent air from escaping into the coating.
4. Application in Direct Sunlight or High Temperatures
• Applying Dura-Rubber in hot weather or direct sunlight can cause rapid drying on the surface while trapping solvent vapors underneath, leading to blisters.
• Solution: Apply the coating in cooler temperatures, ideally in the morning or evening, and avoid direct sun exposure during application.
5. Thick or Uneven Application
• If applied too thickly in a single coat, the outer layer may dry faster than the inner layer, trapping solvents and forming bubbles.
• Solution: Apply in thin, even layers, allowing proper curing between coats.
Would you like help troubleshooting based on your specific conditions (e.g., temperature, surface type, or prep method)?
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