Gelcoat and surface restorer

MARINE POLYTROL is a penetrating oil, which does not contain any waxes or silicones. Quick and simple to use, it is the easy way to restore colour in just a few minutes to any surface dulled and faded by the weather e.g. gelcoat, plastic, paint, varnish. MARINE POLYTROL penetrates the surface, re-wetting the pigments so restoring look of the finish to its original colour and lustre.
Restoring the shine to dull and oxidised metals without the need for polishing, MARINE POLYTROL provides a tough, long lasting, waterproof, flexible finish and corrosion protection on metals.
Resin rich MARINE POLYTROL eliminates the need for waxes and polishes that are complicated and tedious to apply.


  • Restores the colour to dull and faded gelcoats and plastics.
  • Rejuvenates flat and chalky paint and varnish work, dulled by weathering.
  • Deep penetrating - Re-invigorates the pigments, working from the inside out.
  • Eliminates the need for waxes and polishes.
  • Non-film forming. No peeling or flaking.
  • Fills the micro-cavities of the surface - Forms a waterproof protective layer.
  • Long lasting performance. Protects against corrosion.
  • Easy to apply and maintain. Silicone free. Works on Plexiglass.
  • Eliminates rust traces from Stainless Steel and white rust from oxidised metals.
  • Restores tarnished aluminium and dulled metals. No need to polish.

Where to use

  • Horizontal and vertical surfaces.
  • Plastic, Gelcoats - Boat Hulls, Boat Decks, Cabins...
  • Polished Metal - Chrome and brass fittings.
  • Aluminium - Masts, Mast heads, Booms, Portholes, Deck hatches...
  • Stainless Steel - Handrails, Stanchions, Gantries, Hull and deck ventilators, Turnbuckles...
  • Coatings - Paint, Varnish.
  • Non-marine - Hubcaps, Chrome bumpers (cars, motorcycles), Aluminium windows, Tiling,
  • Terracotta tiles, Marble...

Preparation surface

General directions

  • Surfaces must be clean, dry and free of dirt, grease, grime and mildew.
  • All waxes, polishes, silicone etc. should be completely and thoroughly removed.
  • Treat mildew with a 50/50 bleach/water solution. Scrub solution on to surface and allow to stand 10-15 minutes, rinse thoroughly.

Plastic and Gelcoat

  • Clean surface with DECK CLEANER.
  • Rinse thoroughly and allow to dry a minimum of 12 hours.


  • Clean surface with OWACLEAN.
  • Rinse thoroughly and allow to dry a minimum of 12 hours.


Plastic and Gelcoat

  • Apply a liberal even application of MARINE POLYTROL to saturation using a brush.
  • Allow to work 10-20 min.
  • Wipe off excess MARINE POLYTROL with a clean lint free cloth before it becomes tacky.
  • Gently polish with a soft lint free cloth to a new sheen.
  • If required repeat above process, ensuring that MARINE POLYTROL does not create a film on the surface.


  • Soak abrasive pad or wire wool in MARINE POLYTROL and apply to surface with a rubbing action.
  • Allow to work 10-20 minutes.
  • Wipe surface with a cloth to remove all residue.
  • Buff surface with a soft lint free cloth.

Note: MARINE POLYTROL is not a surface coating, its place is in the surface not on the surface. 
Excess MARINE POLYTROL that dries on the surface may be removed with MARINE STRIP.


  •  White Spirit.

To maintain product

  • Maintenance is due when the treated surfaces show signs of fading. Prepare and re-treat surface as directed above.


  • Do not use MARINE POLYTROL on white surfaces.


  • Coverage: 18 m² per litre
  • Application tools: Brush - Cloth - Abrasive Pad - Wire wool (000 or 0000 grade)
  • Application temperature: between + 5°C and + 35°C
  • Drying times: 24 hours

Container size

  • 1 LITER (1.06 U.S QUART)
  • Larger sizers available on request.

Watch the product video