revive a composite front door with Polytrol

How to revive a composite front door

Paul at Dunne & Sorted got in touch when he was looking for a product to revive a customer’s faded composite door and we recommended Polytrol. He’s sent us some photos of the project before and after he’d completed it and some instructions on how he did it.

For more information about Paul and his company please see his bio below. We couldn’t wait to see the photos and share them with our other customers. I’m sure you’ll agree that the transformation is nothing short of marvellous!

revive a composite front door with Polytrol

1. Prepare the surface

Firstly, prepare the door. Remove any dirt, grease, grime or mildew from it. If there is any wax or polishes on the door, you will also need to remove this.

Clean the door with warm, soapy water then rinse thoroughly.

Although we didn’t have any mildew on the door, if you do, don’t worry. Mildew can be treated with a 50:50 bleach and water solution. Just scrub it on, leave it for 10-15 minutes, then rinse it off.

After cleaning, leave the door to dry for 24 hours before applying Polytrol. Make sure that your door is completely dry before moving on to the next step!

2. Apply the Polytrol

Liberally apply Polytrol with a brush (you could also use a cloth) and then leave it to work for 10-20 minutes. Before it starts to become tacky, wipe off any excess with a clean, lint-free cloth.

Then leave it to dry.

The door didn’t take us longer than 20 minutes so we could do it all in one go but if it will take you any longer than 20 minutes, you will need to work within areas that can be completed within this time-frame.

To achieve the shiny finish, buff the surface with a lint-free polishing cloth.

3. Clean up

After finishing, clean the brush with white spirits.


This satisfied customer used Polytrol to revive their composite front door but it is also great for a wide range of other uses, including brightening faded car bumpers and reviving the gelcoat on your boat!

We hope you found this post on how to revive a composite front door helpful! If you have any other advice or top tips, please feel free to leave them in the comments below. We love hearing from you!

You can also follow us on Twitter, Facebook, Instagram or Pinterest at @OwatrolUK or find us under the hashtag #OwatrolUK

Dunne & Sorted
About Dunne & Sorted

Dunne & Sorted are based in Fareham, Hampshire and carry out window & door repairs. His work includes repairing handles, fixing draught problems, reviving faded surfaces, fitting cat flaps and more.

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45 thoughts on “How to revive a composite front door

  1. Hi, we moved to our present house 3 years ago. It has a navy blue composite door which is sadly showing a multitude of shades now due to the effect of the sun. Do you think Polytrol is a suitable product to revive the door?
    Many thanks,
    Nigel

  2. Hi
    I have a rosewood coloured composite door with a upvc frame. The frame remains in excellent condition but the door seem to have paid the price of south facing and is now looking in a sorry state. I purchased your Polytrol but realised with removing the flaking it would not do the job. This is a 4 panel door with a glazed portion at the top. On one of the lower panes I have managed to scrape off ,a fair amount with
    my ‘thumb nail’ . However this way would be impossible over the whole surface. I have searched the net and see there are others experiencing the same problem. I see that you suggested , maybe, sanding but this would surely have an impact on the coloured surface. It is known that these doors South Facing ( with no porch ) do have a problem with degrading. I moved into the property about 3 years ago and it has only come to light after the heatwave we in past months. I would certainly not recommend buying another composite door unless the company offered a 10 year warranty to cover this problem .any ideas ??

    1. Hi Tony,

      I’m afraid Polytrol will do nothing if the door is flaking its original coating off. Polytrol will only recover a faded surface in good condition. We usually recommend going back to where you originally purchased the door and speaking with them directly, however, from experience we understand that it is rare for this problem to be resolved in this way. Sadly it comes down to the poor quality of the doors.

      I hope this was of some help.

      All the best,
      The Owatrol team

  3. Thanks for reply . No luck with the door manufacturer . Composite doors that face due south should not be fitted at all unless there is a porch over. If anyone is thinking of purchasing these door should consider my experience …Buyers Beware . I’m sure the salesman will not inform you of sun scorch ‘blistering’ , I realise that last August’s heatwave was extreme but in future years we may have to expect it . This door was £700 which as a tradesman I fitted myself., so not a cheapy . Before I remove, i am going to reposition (to east facing) sand it and paint it before I discard it , altogether.

    1. I’m sorry to hear that Tony. Apologies that we could not be of more help.
      Best of luck for the future.

      All the best,
      The Owatrol Team

  4. I have a composite door which has yellow run marks running down the inside, the colour on the inside is white. I have tried everything to remove the marks including white spirits but nothing seems to work. Would Polytrol work for this?

    1. Hi Jeanette,

      I am afraid Polytrol would not work for this purpose as Polytrol is a colour restoring oil. You would most likely need to use a stripping product to remove them.

      All the best,
      The Owatrol Team

    1. Hi there Mitch,

      No, I am afraid Polytrol will not work on any type of white coloured surface.

      Apologies we could not be of more help.

      All the best,
      The Owatrol Team

  5. Hi I got a cement driveway down last year there was sealant put over cement my red composite door has residue on bottom from this there are white patches will Polytrol work on door

    1. Hi Terry,

      Polytrol re-wets and revives pigments on surfaces that have become faded due to weathering, pollution and UV rays, so if the pigments have been completely removed via a chemical of some sort it is unlikely to work as there are no pigments for the Polytrol to work with.
      You could always purchase a sample pot which is £5 for 100ml with free delivery and test it on a small area to see if it would work?

      All the best,
      The Owatrol Team

  6. Hi
    Have used Polytrol on dark blue composite front door, it did a good job ,but a year later it appears to be fading again now so do we re apply or get the door professionally spray painted as it faces south and gets very hot when the sun is on it mThankyou

    1. Hi there Malcolm,

      Depending on how much sun and weather the door is exposed to, it is possible for Polytrol to only last around 12 months in extreme circumstances.
      As far as getting the door spray painted, as the process of using Polytrol only takes around 20 – 30 mins, you may find that applying a coat of Polytrol every 12 months much quicker, cheaper and easier to do. There is also the possibility that you will end up with the same problem of fading even with a new coat of paint as the door seems to be exposed to high levels of UV.

      I hope this was helpful, please feel free to contact us again should you require further assistance.

      All the best,
      The Owatrol Team

  7. Hi there. Your product was recommended to me by a friend who had great results with it.

    I have just used it on my composite front door however, and it doesn’t seem to have made any difference to the faded colour. I cleaned and dried the surface and applied the product using a cloth. I left it for on 20 minutes. Is it possible that I didn’t apply enough?

    Also, should I see a difference straight away once the product is applied or does it take time for the change in colour to happen? Many thanks!

    1. Hi there Lou,

      Sorry to hear you have not had the best experience with Polytrol. There are a few reasons as to why this may have happened:

      – The surface might not have been clean enough / the cleaning solution might not have been thoroughly rinsed off and so the product was unable to get into the surface.
      – The surface may have still been wet after cleaning (the surface should be left to fully dry for 24 hours before application of Polytrol).
      – You may have applied too little.
      – You may have not left it on long enough (although you did mention you left it for 20 minutes so this sounds unlikely).
      – You may have removed too much of the excess after leaving it to work.
      – The colour may be too badly faded to restore (it is possible that the pigments become so faded and damaged that Polytrol will not be able to restore them).

      You should notice the difference in colour almost immediately after application. If you have enough product left it is safe to repeat the application should you wish to try.

      I hope this was helpful Lou, please feel free to give us a call to discuss further if you have any more questions: 01582 592707

      All the best,
      The Owatrol Team

  8. Hello – can you advise how much polytrol I need to buy to restore a faded composite front door please

    1. Hi there Lynda,

      We would recommend purchasing the 250ml spray can for the size of a composite front door. Or if you would prefer a tin instead, the 0.5L will be more than enough.

      I hope this was helpful.

      All the best,
      The Owatrol Team

  9. I have bought some Owatrol for our faded black composite door – but I need to check how long it takes to dry once applied as obviously we will need to close our door afterwards but I don’t want it to stick to the frame.

    1. Hi there Anita,

      Once you have applied the Polytrol oil, left it to work and removed the excess, it should only take a few hours for it to be dry enough to close.

      All the best,
      The Owatrol Team

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