Cuprinol UV Guard Decking Oil

  4.9/5.0   42 reviews

You'll need enter area above for 2 coats (Standard Protection)

Wood type and application can vary coverage

  • A waterborne decking oil for exterior wooden decking
  • Provides a tough, durable finish to softwood and hardwood decking
  • Quick and easy to apply by brush and spray applicator
  • Revitalises and restores weathered decking and other exterior garden wood
  • Deep penetrating formula replaces natural oils lost through weathering
Brand Cuprinol
No. of coats 2
Coverage Up to 8 per litre
Drying time hrs
Size 2.5L, 5L
MPN 5122410, 5122413, 5122411, 5122412, 5122414, 5122417, 5122415, 5122416
GTIN 5010212557587, 5010212557617, 5010212557594, 5010212557600, 5010212557624, 5010212557655, 5010212557631, 5010212557648

Cuprinol UV Guard Decking Oil is a waterborne decking treatment for use on all exterior hardwood and softwood decking boards. It was formally branded as 'Cuprinol Decking Oil and Protector'.

Ensure the wooden decking to be treated is clean, dry and free from any dirt or loose debris prior to oiling.

New Decking Preparation

For all bare wood decking including tanalised, pressure treated and preservative impregnated decking timbers.

New Softwood Decking

  1. Sweep the decking with a stiff brush or broom to remove all surface contaminates such as dirt, grit and organic matter
  2. Use Cuprinol Decking Cleaner to thoroughly clean the deck and remove any mould or algae
  3. For best protection, treat decking with Cuprinol Wood Preserver Clear (BP) prior to application of Cuprinol UV Guard Decking Oil
  4. If possible, preserve all sides including end grain prior to installation

New Hardwood Decking

Hardwood decking usually requires a period of weathering to allow the surface grain to open up, which allows for better absorption of the decking oil. Check the decking manufacturer's guidance on how long decking should be left to weather before treating.

Old Decking Preparation

Old coating type finishes such as decking paints, varnishes and varnish type stains must be fully removed back to bare wood before oiling. Depending on the condition and type of finish, it may require more than one attempt to fully remove the old coating.

  1. Ensure that all 'coating' type finishes have been fully removed to expose bare wood by either jet washing or using Cuprinol Stain Stripper
  2. Sweep the decking with a stiff broom to remove all traces of surface dirt and debris before oiling
  3. To restore the colour of decking that has greyed over time, use Cuprinol Greyaway Restorer
  4. Any holes, gaps or splits in the decking boards can be filled with Cuprinol All Purpose Wood Filler or Cuprinol Ultra Tough Wood Filler
  5. For the best protection, treat with a suitable exterior wood preservative prior to application of UV Decking Oil
  6. If possible, preserve all sides including end grain prior to installation

Always do a small test area before beginning any project to assess product performance and results. Follow the manufacturers instructions on the tin at all times.

Brush Application

Stir Cuprinol Decking Oil thoroughly before and periodically during application to ensure a consistent finish.

  1. Apply the oil evenly along the grain, using a Cuprinol Woodcare Brush
  2. Do not allow puddles to form and wipe off any excess oil with a clean, lint-free cloth
  3. Allow to dry for 4-6 hours
  4. Apply a second coat as above

Spray Application

Cuprinol UV Guard Decking Oil can be spray applied using Cuprinol Spray and Brush or the Cuprinol Fence and Decking Power Sprayer. Refer to the sprayer user guide for full instructions.

Do not apply in temperatures below 5℃, in damp conditions or if rain is likely before product has dried. Cover any surfaces nearby to protect from over-spray. Any over-spray should be cleaned up immediately (whilst still wet) with water and household detergent.

  1. Spray with the nozzle 15-30cm (6"-12") from the wood surface
  2. Spray at a consistent rate to maintain colour depth
  3. Take care to avoid over application, removing any excess oil with a clean, lint-free cloth

Regular Cleaning

Decked areas can be cleaned at regular intervals using Cuprinol Decking Cleaner. Any decking that has greyed over time can be restored with Cuprinol Greyaway Restorer.


To maintain the surface finish and its protective properties, re-apply a fresh coat of Cuprinol UV Guard Decking Oil as required, following the Preparation and Application instructions above.

Q. Is Cuprinol Decking Oil solvent based?

A. No. Cuprinol UV Guard Decking Oil is a water based decking treatment which means that it is low odour and easy to use. If you specifically require a solvent based product, consider Cuprinol Anti-Slip Decking Stain, which is available in both 2.5Ltr and 5Ltr sizes and a range of attractive colours.

Q. Is this decking oil available in clear?

A. Yes. Cuprinol call the clear version of this product 'natural'. The clear or 'natural' version of this product does not contain any added pigment or colour and will simply enhance the natural colour and grain of your decking.

42 customer reviews
Does what ti says on the tin !!! by Chris Dransfield

Does what ti says on the tin !!!

Reviewed 5L, Natural on: 11/12/17
Used it for many years keeps decking looking good with a yearly coat by Paul Thompson

One coat a year keeps the decking looking fresh. Very easy to apply and clean up afterwards.

Reviewed 5L, Natural Pine on: 20/11/17
Great value, amazing service and delivery was quick by Tina Gotts

Thought this was great value, painted my new decking to keep it weather proof before laying it, with plenty left over to repaint it ready for next winter.

Reviewed 5L, Natural Cedar on: 17/11/17
Excellent product by David Atkinson

I have a lot of experience with Cuprinol Decking Oil as I have a large amount of decking. However I decided to give it a try in it's 'Natural' mix on 60ft of fence panels as we wished to retain their colour without making them to garish, two coats achieved the desired effect reviving their 'Look New' appearance

Reviewed 5L, Natural on: 04/11/17
Caravan deck looks great! by Stephen Naylor

Don't be put off by the runny consistency of this product. We wash using K'archer T racer and recoat our caravan deck annually. If the timber is clean and only this product has been used from day one, you will be rewarded with a lovely honey coloured satin finish. I have used it for five years now and would not use any other product. Most important, store the product away from frost or wax will separate and not mix back in even if warmed.

Reviewed 5L, Natural Pine on: 01/11/17
Worked wonders by Mark

Did everything I expected of it in the looks department keeping the natural look of the wood and appears to weather well, too.

Reviewed 5L, Natural on: 26/10/17
Easy to use and brilliant coverage by Martin Jackson

Product was easily applied and enhanced the wood grain of my shed which has had many of the neighbors considering purchasing. Would definitely recommend.

Reviewed 5L, Natural Oak on: 22/10/17
I am pleased with this easy to use application by John White

After laying down new decking and allowing to weather for 3 months I applied 3 coats of this Cuprinol UV Guard Decking Oil which was extremely easy to apply with a 4inch paint brush. The result is a quality looking finish and continues to bead the rain on the surface which shows it is doing its job. I intend to reapply annualy to preserve my investment and keep it looking nice.

Reviewed 2.5L, Natural Oak on: 22/10/17
Easy to apply and great finish by Philip Smith

I was very concerned to begin with as it seemed too watery/milky to apply and I couldn't see how this could be classed as an oil when its water based. However I persevered and it has taken really well, even over old faded oil coating. Time will tell but after a few months it still looks great.

Reviewed 5L, Natural Oak on: 12/10/17
Good product by Andrew

Really pleased with this product. Easy to apply and good colour. Goes further than I was expecting too!

Reviewed 2.5L, Natural Cedar on: 12/10/17
Easy to use by Zoe Norton

Colour looks really good and made huge difference to appearance of decking.

Reviewed 5L, Natural Cedar on: 09/10/17
Fast delivery, excellent price and fabulous quality product by Martin McAreavey

The price was great, delvery super fast with notifications all the way, the product goes on great and dries to a fantastic and high quality finish. I would definitely recommend this company and this product as they are really excellent. Thanks!

Reviewed 5L, Natural Oak on: 08/10/17
Great product, does what it says on the tin by Mrs D Moir

Decking oil protects by sealing the wood and making it weather and rain resistant without any flaking or peeling.

Reviewed 5L, Natural on: 04/10/17
Happy with the product by Frances Settle

Looks good. Went on easily. Will only know its durability after winter

Reviewed 5L, Natural Oak on: 03/10/17
Good colour and coverage by Chris Bailey

After using cuprinol grey away on old decking we used the decking oil and looks great.

Reviewed 5L, Natural Oak on: 01/10/17
Very happy I brought this by Ian Mansfield

Wanted some more finish job of seen this on the net cheaper than I payed at shop will buy again when I want some more.

Reviewed 5L, Natural Pine on: 22/09/17
Nice finish and colour by Martin Green

2 coats should last until next year. Easy to apply. 2nd coat covers much more area than the 1st. Good product overall.

Reviewed 5L, Natural Pine on: 21/09/17
Easy to apply and gives an excellent finish by Stephen Turnbull

Delighted with the results. Brought my decking back to life.

Reviewed 5L, Natural on: 11/09/17
Good quality product, great value for money, delivered on time by Roger Briddon

Excellent product, does what it says on the tin, applied very easily using the recommended sprayer.

Reviewed 2.5L, Natural Cedar on: 03/09/17
Good quality product, great value for money, delivered on time by Roger Briddon

Excellent product, does what it says on the tin, applied very easily using the recommended sprayer

Reviewed 5L, Natural Cedar on: 03/09/17