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Colour restorer for dull or faded surfaces including car trims

from 174 reviews
Polytrol 1L with 250ml 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 the 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.

174 reviews for Polytrol

Write a Review
  1. Avatar

    Paul Verified Owner

    Very impressed. We have a dark blue composite door that was quite faded and was not looking too good. I applied with a cloth which took 10 minutes. After it dried it was tacky so we buffed it up, it looks like a new door, brilliant. I am also going to try on a couple of chrome parts with some fine wire wool and probably have a go at some of our faded brown drain pipes. Very good product, many thanks. It was also very quickly delivered.

    Door before Polytrol
    Door after application of Polytrol
  2. Avatar

    Steve CANT

    I was sceptical at first, but I have to say that Owatrol Colour restorer really does the job. My red door was only six years old but faded and pale. It shed colour when cleaned but one application of the colour restorer had it looking better than new. The first photo shows work in progress and the comparison between the untreated and the oiled door. The second shot shows the finished door – better than new.
    Easy to use highly recommended.
    My only gripe – not available in smaller quantities – I’ve got tons left over and guess I’ll do it all again next year.

    Application of Polytrol colour restorer
    After application of Polytrol colour restorer
  3. Avatar

    michael clark

    I used this on my scooter plastics . WOW wish i had taken before photos. but the plastics look new now, amazing stuff

  4. Avatar

    Elspeth Durrand

    Wow! Amazing liquid magic. It saved my door. Thank you

    Red composite front door before Polytrol
    Red composite front door after Polytrol
  5. Avatar

    John Lewis

    Last week I purchased a 500 ml tin of your Polytrol to restore our 18-year-old composite (plastic coated) front door. With carriage it cost me £22, the best investment I have made for many a year – door now looks like new! Thank you.

    Easy to apply after thoroughly cleaning the door, Polytrol applied over sections of door with a soft/clean rag and excess wiped away asap, final polish after a couple of hours (warmish day). My only struggle – getting the tin open!

    I’m now looking for something else to refurbish with the rest of the Polytrol!

  6. Avatar


    Ex product . Black composite Door looks brand new
    10 min s to apply . Incredible !!!

  7. Avatar


    I am absolutely amazed at this product. I thought I would need a new composite door at a cost of £1,500++ as it was so faded and scratched. I bought this Owatrol colour restorer after seeing it on YouTube.
    Applied it with a cloth after thoroughly rubbing it down with a washing up scourer. Took about 20 minutes to apply. My door looks as good as new. Fantastic product.
    Photos show before and after.

    Before application of Polytrol on door
    After application of Polytrol on door
  8. Avatar


    Brilliant stuff! Didn’t quite believe all the amazing reviews but did a fantastic job bringing our 17 year old badly faded wood effect GRP garage door back to life! Only used about half a 500ml tin, just washed the door, let dry and then wiped it in with a cloth. That was it and wow, what a difference in the before and after pictures!

    • Owatrol Team

      Owatrol Team

      Hi there Pete,

      Thanks so much for the lovely review!
      We would love to see and share your before and after pictures – would you be happy to send them over to us at sales@owatroluk.com ?
      Thanks again.

      All the best,
      The Owatrol Team

  9. Avatar

    Joan Grant

    I recently used Polytrol on a navy blue composite front door and I’m delighted with the result! Its a fantastic product and I thought you might like to see my before and after pictures.

    Thanks for an amazing product.

    Door before Polytrol
    Door after Polytrol
  10. Avatar

    Fran Woodhouse

    Polytrol arrived today and has made a huge difference to our Composite front door which was in rather a sorry state before.

    I have attached some before and after photos in case you are interested!

    Door before Polytrol
    Door before Polytrol
    Door after Polytrol
    Door after Polytrol

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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.