- Marine & Exterior
- Topcoat
- SeaGuard Marine
SeaGuard Marine Boat Paint Single Pack Polyurethane
4.7 from 3 customer reviews£35.00
inc. VATSKU: seaguard-marine-boat-paint-single-pack-polyurethane
For use above and below the waterline — a single-pack polyurethane topcoat that spans the whole hull without switching products at the waterline. Coverage: 9 m²/L per coat (approx.).
Key specs at a glance
- Substrate
- fibreglass-GRP
- Colour system
- RAL
- Role
- Topcoat
Free UK delivery over £60 · Free 30-day returns
Order by 2pm — estimated delivery Fri 18 Sept
Not sure it's the right one for your job? Read our paint help guide — substrate, condition and application explained.
About this product
For use above and below the waterline — a single-pack polyurethane topcoat that spans the whole hull without switching products at the waterline.
Technical specification
- Role
- Topcoat
- Substrate
- fibreglass-GRP
- Colour system
- RAL
- Category
- Marine & Exterior
- Brand
- SeaGuard Marine
- Application method
- brush, roller, spray
- Pack sizes
- 1L
Where this fits in the prep sequence
- Primed or previously painted substrateBest match
- Sound, lightly worn existing coatingSuitable
- Bare or untreated substratePrime first — do not apply directly
Is the SeaGuard Marine Boat Paint Single Pack Polyurethane right for your job?
The SeaGuard Marine Boat Paint Single Pack Polyurethane is a topcoat built for fibreglass-grp — always applied over the correct primer, never straight onto bare metal.
This product suits you if
- You're painting fibreglass-grp
- The substrate is already primed or previously painted
- You need a precise, colour-matched finish (RAL)
Check before you buy if
- Applying directly to bare fibreglass-grp — prime first, this is a topcoat only
- The substrate is bare or corroded metal with no primer applied yet
Application — how does it go on?
- Role
- Topcoat
- Application method
- brush, roller, spray
Suitable for brush, roller, spray application — pick whichever suits the size of the job.
— The Paint Guys prep note, based on 3 customer reviews
Customer reviews
UV-resistant topsides finish that’s actually held its colour — the SeaGuard Marine Boat Paint Single Pack Polyurethane hasn’t chalked like our old paint.
Helen K.
Verified purchase · 5 Sept 2026
The SeaGuard Marine Boat Paint Single Pack Polyurethane’s non-slip texture on the deck has made a real difference in wet weather.
Jordan M.
Verified purchase · 27 Aug 2026
Applied the SeaGuard Marine Boat Paint Single Pack Polyurethane to the GRP hull before relaunch — smooth finish, good grip once cured.
Aisha B.
Verified purchase · 18 Aug 2026
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