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Colour restorer for dull or faded surfaces including car trims

from 140 reviews
Polytrol 1L with spray can
  • Restores the colour and appearance of dull and faded surfaces caused by exposure to sunlight, rain and pollution
  • Deep penetrating oil that restores the original look and

    finish to gelcoat, plastic, metal and other surfaces

  • Protects against corrosion and blemishes
  • On bare metals Polytrol restores the shine and protects against corrosion
  • Now available in a handy 250ml spray can

Polytrol is a deep penetrating oil which restores the original colour and appearance of dull or tarnished plastics, gelcoats, metals, and other surfaces.

It penetrates the surface, re-wetting the pigments to restore their lustre and colour which has been lost through exposure to sunlight, rain, and pollution and it also gives corrosion protection.  When used on tarnished metals, it brings back the shine and gives long-term protection against corrosion.

Simple to apply using a cloth or soft brush, it’s ready to wipe off in just 10 minutes! It can be used on both horizontal and vertical surfaces and can even be used on fibreglass (GRP). Polytrol dries to a tough and long-lasting flexible finish which does not leave a film – so it won’t peel or flake.

Polytrol is now available in a handy 250ml spray can, great for quick application and difficult to reach areas. Please see the directions for use to find out how to apply it.

Ideal Uses for Polytrol Colour Restorer

  • Brightening faded car bumpers
  • Reviving the gelcoat on your boat
  • Restoring the shine to metal fixtures
  • Rejuvenating flat or chalky paint dulled by weathering
  • Brightening the surface of tiles in stone, terracotta, marble, slate, etc.
  • Reviving the colour of faded garage doors


DO NOT use Polytrol on white surfaces, it will not work as Polytrol is designed to restore pigments.

Always read the Polytrol Product Information before using and follow the instructions carefully.

Surface Preparation

All 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 any mildew with a 50:50 bleach and water solution. Scrub the solution on to the surface and allow it to stand for 10-15 minutes then rinse thoroughly.

Using Polytrol on plastic, gelcoat, tiles, painted surfaces etc.

Clean the surface with warm soapy water or Net-Trol, rinse thoroughly and allow it to dry for a minimum of 24 hours depending on surface.

Using Polytrol on stone, brick, etc.

Clean the surface with Net-Trol, rinse thoroughly and allow it to dry for a minimum of 24 hours depending on the surface.

Using Polytrol on metal

Clean the surface with warm soapy water and rinse thoroughly or use an appropriate solvent (follow manufacturer’s instructions). Leave the surface to dry for a minimum of 24 hours.

Application of Polytrol Colour Restorer

General directions

Always work in areas that can be completed 10-20 minutes to ensure an even appearance. If the surface absorbs the Polytrol unevenly (i.e. some matt and some shiny patches) move any surplus oil from shiny areas to matt areas. Wipe off any excess Polytrol with a lint free cloth before it becomes tacky. For a shinier finish, buff the surface with a lint-free polishing cloth.

When using the Polytrol 250ml spray can, simply spray on liberally, wipe off any excess and leave to dry.

Applying Polytrol to plastic, gelcoat, tiles, painted surfaces etc.

Apply Polytrol liberally and evenly with a brush or cloth. Allow it to work for 10-20 minutes. Wipe off any excess with a clean lint-free cloth. Leave it to dry.

Applying Polytrol to stone, brick, etc.

Apply Polytrol liberally and evenly with a brush or cloth and leave it to work for 10-20 minutes. Brush out or wipe off any excess Polytrol with a clean lint-free cloth. Leave it to dry.

Applying Polytrol to metal

Apply Polytrol using a fine wire wool (000 grade) soaked in Polytrol and allow it to work  for 10-20 minutes. Wipe off any excess Polytrol with a clean lint-free cloth. Leave to dry.

Note: Polytrol is not a surface coating. Its place is in the surface, not on top.


Maintenance is due when a Polytrol treated surfaces shows signs of fading. Prepare and re-treat surfaces as directed above.

Clean Up

Clean any tools used with white spirit. Polytrol is non-flammable, however any rags, steel wool etc. soaked in Polytrol may spontaneously catch fire if improperly discarded. Rags, steel wool etc must be saturated with water after use or placed in a sealed, water filled metal container, before disposing of them with household waste. Rags may be laid flat and air dried before discarding.

Things to Remember

  • Cover and protect everything you do not wish to treat.
  • Apply between +5°C and +35°C.
  • Do not apply in direct sunlight or on to hot surfaces.
  • Do not allow excess Polytrol to dry and create a film on the surface (always remove excess product).
  • Do not use Polytrol on white surfaces.

140 reviews for Polytrol

Write a Review
  1. Avatar

    Noel Tadeo Verified Owner

    My old faded black color bike brings back its old glory.the carrier the cage bottle the saddle the whole bike looks new again.one very happy customer.
    Thanks owatrol

  2. Avatar

    M Millar Verified Owner

    5 star product by 5 star company!

    I ordered a sample pot and DHL delivered it elsewhere – but Owatrol were quick to replace, thank you.

    I’ve used it today and my grey composite front door is as good as new and I’ve hardly used any from the pot. Easy to apply – I used a lint cloth and just wiped it on the clean door. Waited 20 minutes and buffed off. Easy and effective. Looks like a new front door.

  3. Avatar

    Linda Smith

    My uPVC front door had faded badly and being a mahogany finish it looked terrible. I bought this thinking it certainly couldn’t look any worse. Applied it with a soft clean cloth and it dried brilliantly. Looks like new again. So good that I’m going to have to change the letterbox now!

  4. Avatar

    Brian Harrison Verified Owner

    I was very sceptical about all the positive reviews of Polytrol when I found the product on the internet. I was contemplating having to replace my composite rosewood effect front door because it looked so chalky and faded. I had tried all sorts of products to try to restore the original finish but none worked. As a final try, I decided to buy some Polytrol.

    The product is easy to apply by brush but don’t let it dry for too long before wiping the surplus off with a lint-free cloth. I must say that the positive reviews were justified and my door looks almost like new and I’ve got plenty of Polytrol left for when it needs re-coating.

  5. Avatar

    Euan Kidd Verified Owner

    Recently noticed that my Brown Composite Front door was becoming very “Faded” in the recent sun. Asked the original supplier for any tips to restore the colour and got no help at all.

    Having trawled the net I found Owatrol / Polytrol and gave it a try! Almost like magic the colour was restored in no time at all so I can highly praise your product for a quality result with minimal effort and no “Glitches”.

    Many thanks.

  6. Avatar

    Douglas Graham Verified Owner

    Our composite front door has a ‘wood’ finish. This had lost it’s colour and looked in
    a sorry state. After treating with Polytyrol it now looks as good as new.
    An excellent product.

  7. Avatar

    Nick Hooper Verified Owner

    It’s black magic!! I painted one coat onto a composite plastic mahogany door badly faded by sunlight, and it looked better than new. Took about 30 minutes, including the masking up. Couldn’t have been easier.

  8. Avatar

    Graham Abraham Verified Owner

    Our mahogany composite front door(south facing) was ten years old and just out of warranty….although I don’t think the company would have replaced it….and was quite badly faded. However, the door company recommended Polytrol and like other reviewers I wasn’t willing to pay almost £2000 for a replacement !!!!
    Followed the instructions and it worked. The neighbours thought we had a new door.
    Most impressed and hope it will last as the sun can be pretty strong ….. am I able to redo at a later stage if it starts fading again ??
    Thanks for saving me a lot of money !!!

    • Owatrol Team

      Owatrol Team

      Hi Graham,

      Thank you for your kind words – we are glad to hear you had such a positive experience with Polytrol.
      You can re-apply Polytrol if the surface stars to fade again. Simply clean the area, wait for it to dry and then re-apply the Polytrol in the same way you did before.

      If you have any before and after pictures, we would love to see them! – Feel free to send them over to us at sales@owatroluk.com

      Thanks again,
      The Owatrol Team

  9. Avatar

    Sean Porter Verified Owner

    Really happy with the results. The plastic is still looking fresh after a month!

  10. Avatar

    L Brown Verified Owner

    Bought to revive colour to my ten year old black composite door. Worked amazingly ; looks like new. Would definitely recommend and purchase again.

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This coverage indication is only a guide and actual coverage is dependent on surface type, age, porosity etc.
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Coverage: 18m2 per litre
Tools: Soft brush or rag, fine wire wool for metal
Suitable for: Exterior & Interior use
Clean up: White Spirits
Drying Time: 10-20 mins (leave for 24 hours before use)
Restrictions: Polytrol restores pigments so cannot be used on white surfaces
Suitable Surfaces: Plastics, gelcoats, GRP (fibreglass), tiles, painted or varnished surfaces, stone, bricks, metals & more

Technical Data

Read the full technical information including MSDS for Polytrol on our corporate website.