Best Paint for Fiberglass Boat Interiors: Quick Tips You Need

Painting a fiberglass boat interior isn't just about fresh looks but a means of providing an extra layer of protection from saltwater, UV rays, and general wear and tear. It doesn't matter if you are upgrading an old, steadfast cabin cruiser or refreshing the interior of a fishing boat; the right paint will make all the difference

Check out this quick list of the best interior paints for fiberglass boats.

1. Interlux Bilgekote – Best for Durability

Why it works:

  • Specifically made for bilge and locker areas
  • High-gloss, oil-based finish
  • Moisture- and mildew-resistant

Best Use: Interior walls, bulkheads, underdeck spaces on fiberglass boats.

Pro Tip: Apply with a foam roller for a smooth finish, and ventilate well during curing.

Pinterest Inspiration: Interlux Bilgekote Enamel For Boats

Want professional help with your boat’s interior paint? Our interior painters in Bergen County also offer specialty coatings for marine surfaces and high-moisture environments.

2. Rust-Oleum Marine Topside Paint – Best Budget Option

Why it works:

  • UV-resistant and tough against wear
  • Smooth enamel formula for fiberglass
  • Affordable and easy to apply

Best Use: Seating areas, hatches, and side panels inside the cabin.

Prep Tip: Clean thoroughly and lightly sand fiberglass with 220-grit before priming. Use a compatible marine primer for adhesion.

Pinterest Inspiration: Rust-Oleum Marine 1 qt. Gloss White Topside Paint (4-Pack)

3. Pettit EZ-Poxy – Best for Glossy Finish

Why it works:

  • High-gloss polyurethane finish
  • Flexible and crack-resistant
  • Holds up well in damp conditions

Best Use: High-traffic interior zones where you want a luxury look without sacrificing durability.

Application Tip: Use a good-quality brush and follow up with a light foam roller to level brush marks.

Pinterest Inspiration: Pettit Marine Paint 3711 EZ-Poxy / Easypoxy Platinum Aerosol

Fiberglass Boat Interior Painting Prep: Quick Checklist

Before you jump into painting fiberglass boat interior surfaces, make sure to:

  • Clean surfaces with a marine-safe degreaser like Star Brite or Simple Green Marine.
  • Sand lightly to remove gloss and allow paint adhesion
  • Vacuum and use a tack cloth to remove debris from the surface before applying the primer.
  • Use Interlux Pre-Kote or TotalBoat TotalProtect—both excellent marine primer options.
  • Always wear a mask in enclosed cabin areas

Want color inspiration or alternative finishes for other unique interior projects? You might find ideas in our guide to the top paint colors for mobile home interiors.

Need Help Choosing the Right Paint for Your Boat Interior?

MGP Painting doesn’t just do homes—we’ve assisted clients in Rockland and Bergen County with their marine painting projects, too.

Call 845.290.5284 for product suggestions, prep help, or referrals to trusted local marine finishers.