Cuprinol UV Guard Decking Oil

  5.0/5.0   30 reviews

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

Wood type and application can vary coverage

  • A waterborne treatment for exterior wooden decking
  • Provides a tough, durable finish to soft and hardwood decking
  • Revitalises and restores weathered decking and other exterior garden wood
  • Deep penetrating formula replaces natural oils lost through weathering
  • Quick and easy to apply by brush and decking applicator
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 was formally branded as Cuprinol Decking Oil and Protector.

Looking for a bigger range of colours with anti-slip decking properties? Consider Cuprinol Anti-Slip Decking Stain

Ensure the wooden decking to be treated is clean, dry and free from any previous coating, algae or mould.

New Decking Preparation

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

New softwood decking

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

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. For decking affected by mould, algae or moss, or to restore the colour of decking that has greyed over time, use a decking restorer or reviver gel
  3. For the best protection, treat with a suitable exterior wood preservative prior to application of Cuprinol UV decking oil
  4. If possible, preserve all sides including end grain prior to installation
  5. Sweep the decking with a stiff broom to remove all traces of surface dirt and debris before oiling

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

  1. Stir Cuprinol decking oil thoroughly before and periodically during application to ensure a consistent finish.
  2. Brush the oil on evenly along the grain
  3. Do not allow puddles to form and wipe off any excess oil with a clean, lint free cloth
  4. Allow to dry for 4 to 6 hours
  5. Apply a second coat as above

Spray application

This product can be spray applied using the Cuprinol Fence Sprayer or Cuprinol Power Sprayer. Refer to the sprayer user guide for full instructions.

  1. Cover any surfaces nearby to protect from overspray
  2. Any overspray should be cleaned up immediately (whilst still wet) with water and household detergent
  3. Do not apply in temperatures below 5℃, in damp conditions or if rain is likely before product has dried
  4. Take care to avoid over application, remove any excess oil with a clean, lint free cloth

To maintain the surface finish and its protective properties, re-apply a fresh coat of Cuprinol UV Guard Decking Oil, 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.

30 customer reviews

Just like it's rival, does just what it says on the tin

Reviewed 5L, Natural Oak on: 13/07/17

Quick delivery great product

Reviewed 5L, Natural Oak on: 10/07/17
It does what it says on the tin ! by Shaun Stringer

The product is easy to apply and leaves a natural look and also provides a natural feeling. It has enriched and enhanced the surfaces that I have chosen to use it on.

Reviewed 5L, Natural on: 03/07/17

It was extremely good value and arrived in good time

Reviewed 2.5L, Natural Oak on: 30/06/17
Er, does what it says on the tin by Ian G, Hastings

Easy to apply, I found a brush works best and dries quickly. Please note 'natural' does not mean 'clear' as it finishes a little darker than I thought it would. Looks great after one coat and even better after two. Water 'beads' on the surface. Will use again.

Reviewed 5L, Natural on: 27/06/17
Easy to apply, very happy with the performance of the product by Simon Barton

Use this product professionally, so need to ensure that an element of waterproofing is achieved on old deckings to help prevent water incursion and reduce deteriation.

Reviewed 5L, Natural on: 21/06/17

Good colour and waterproof finish

Reviewed 2.5L, Natural Oak on: 12/06/17

Used on old oak beams and lovely finish.

Reviewed 5L, Natural Oak on: 12/06/17
Good price and quick delivery by John Crilley

Good price and quick delivery. Can't ask any more.

Reviewed 5L, Natural on: 01/06/17
Great product by Tracey Johnson
Reviewed 5L, Natural Pine on: 24/05/17
Great by Lorraine Huckerby


Reviewed 5L, Natural on: 22/05/17
Excellent by Lorraine Huckerby


Reviewed 5L, Natural Oak on: 22/05/17
Very easy to use , great colour by Steve Shaw
Reviewed 5L, Natural Oak on: 19/05/17
Does exactly what it says on the tin by M Conroy
Reviewed 5L, Natural Cedar on: 12/05/17
Very natural looking by Sam Davis

Have used this for the last 18yrs on my decking and it is excellent . Protects well and looks very natural.

Reviewed 5L, Natural Oak on: 10/05/17
Very good value by Robin Ashford

Excellent coverage, easy to use worth the money

Reviewed 5L, Natural on: 18/04/17
Great value cheaper than in most stores, brilliant delivery time 2 days from order by Dave Branson

Used this on my deck and some fencing easy to apply and a great finish. I have been using this decking oil every year for the last 3 years.

Reviewed 5L, Natural Oak on: 12/04/17
Great Price, Quick Delivery by L Routledge

I was horrified at the prices in the local superstores so checked online and found this one. It arrived within a couple of days and was the genuine article. Good service, I would definitely buy again.

Reviewed 2.5L, Natural Cedar on: 07/04/17
Looks great - really brightens up the patio and we like the natural colour Will wait to see what the winter brings and if it becomes a problem with slipping/ by Laura Greaves
Reviewed 5L, Natural on: 08/10/16
Good cover and excellent finish by David Cole
Reviewed 2.5L, Natural Oak on: 04/09/16