Why Polish
Gelcoat oxidizes from UV, salt, and pollution, turning glossy hulls chalky and faded. Polishing removes the oxidized layer, restores shine, and protects against further degradation. Well-maintained gelcoat improves fuel efficiency, eases cleaning, and preserves resale value.
What You Need
- Marine fiberglass polish (not automotive)
- Oxidation remover for heavily oxidized hulls
- Marine wax or sealant for UV/salt protection
- Random orbital buffer, 5-6 inch pad
- Foam pads: cutting, polishing, finishing
- Microfiber towels
- Masking tape for trim protection
Process
- Wash hull with marine soap, remove all salt and growth
- For heavy oxidation: start with remover + cutting pad on buffer
- Apply polish to 2×2 ft sections, work with buffer at medium speed
- Wipe clean, inspect. Repeat if haze remains.
- Apply marine wax with finishing pad after entire hull is polished
- Buff to gloss with clean microfiber
Key Takeaway
Polish removes damage. Wax prevents it. Twice-a-year polish-and-wax keeps gelcoat looking new for decades.
Maintenance
Wash after every use. Monthly spray wax between sessions. Store covered when possible — UV is gelcoat's worst enemy.
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Frequently Asked Questions
How often to polish?
Full polish and wax twice a year. Monthly wash-and-spray-wax between. Outdoor boats need more frequent attention.