Cuprinol Wood Preserver Clear (BP)

  4.8/5.0   39 reviews

You'll need enter area above for 2 coats (Standard Protection)
You'll need enter area above for 3 coats (Ultimate Protection)

Wood type and application can vary coverage

  • A clear, multi-purpose wood preservative for interior and exterior use
  • Suitable for use on all sound timbers, including structural timbers and joinery
  • Protects against the onset of wood decay, mould and blue-staining fungi
  • Provides added protection for other wood treatments, such as stains and oils
  • Deep penetrating formula
  • High V.O.C content
  • Solvent-based
Brand Cuprinol
No. of coats 2
Coverage Up to 9 per litre
Drying time 24 hrs
Size 1L, 2.5L, 5L
MPN 5083486, 5083487, 5083488
GTIN 5010368010288, 5010368010264, 5010368010240

Cuprinol Wood Preserver Clear (BP) can be used as a pre-treatment prior to using Cuprinol 5 Year Ducksback or other compatible interior or exterior protective wood finishes.

Looking for an alternative wood preservative treatment? Try one of the following products from the Cuprinol range:

Product Use
Cuprinol 5 Star Complete Wood Treatment (WB) A clear, water-based, all-in-one wood treatment for interior timber. Rids wood of dry rot, wet rot, fungi and woodworm
Cuprinol Ultimate Garden Wood Preserver A water-based wood preservative for garden timber. Perfect for sheds, fences, summerhouses and garden gates
Cuprinol Exterior Wood Preserver A water-based exterior wood preserver for use on sheds, fences, cladding and all sawn wood
Cuprinol One Coat Sprayable Fence Treatment A water-based, sprayable wood treatment for garden fences and sheds, which colours and protects rough sawn timber

Ensure that surfaces to be treated are clean, dry and free from surface dirt, loose debris and any other organic matter, including mould, mildew, algae and fungi.

Bare or New Timber

Previously Coated Timber

Existing surface coatings such as paint or varnish must be fully removed back to bare wood before using Cuprinol Wood Preserver, either by sanding or using Cuprinol Stain Stripper.

Always do a small test area before starting any project to assess the appearance and suitability of the finish. Follow the manufacturers instructions on the container at all times.

  1. Apply 2-3 uniform coats of Cuprinol Wood Preserver with a Cuprinol Woodcare Brush
  2. For dip application, dip the timber for at least 3 minutes if practical
  3. Allow 24 hours drying time between coats

Please Note: The application of this product may cause darkening of some timbers. To ensure thorough protection, treat all surfaces, and apply to any surfaces cut after treatment.

After drying, wood glues, fillers, mastics and knotting solutions can be used on the timber as normal. Treated wood should be allowed to dry for 6-8 weeks before laying plastic floor coverings, rubber backed carpets or underlay, hanging vinyl wallpaper or using mastics. Do not spill on asphalt, bitumen, bitumen felt, tar, plaster, plastics, paint, etc.

Drying times can vary between 1-5 days dependant upon climate conditions and top coat.

Once fully dry, a solvent or water-based finish can be applied such as a Cuprinol wood oil or Cuprinol wood stain. Cuprinol Wood Preservative is also compatible with many other wood paints, varnishes, stains and oils.


If used as a standalone treatment and not over-coated with another product, Cuprinol Wood Preserver Clear (BP) can be topped up as and when required by following the Preparation and Application instructions above. If it is over-coated, there is no need to maintain this product. The top coat should be maintained in accordance with the maintenance instructions provided by the manufacturer for that product.

39 customer reviews
Fantastic product and service from Wood Finishes Direct by Mike Lever

I have purchased many products from Wood Finishes Direct and they have all been excellent and exactly as described. The service and aftercare has also been superb. I will continue to regularly use Wood Finishes Direct.

Reviewed 5L on: 21/01/18
Worked well by Anne Goddard

Easy to apply. Time will tell whether it will do the job.

Reviewed 5L on: 09/01/18
Easy to use by S A King

very easy to use quick drying and not to smelly

Reviewed 5L on: 09/12/17
Great product from a reliable company by Lynne Taylor

Good quality that is easy to use, reliable and lasts.

Reviewed 5L on: 03/12/17
Good price and delivery by R MCCARTY

Does what it says on the tin

Reviewed 5L on: 24/11/17
It does go a long way and certainly enhances the finished look of your wood by Steve Willis

The cover rate is pretty good but the cost for a 5litre can is excessive. I would use more of this product on maintaining my woodwork (large shed) if the cost of this product was more reasonable

Reviewed 5L on: 20/11/17
Good product by Kenny Wilson

Good product, too early to see if it will stand the test of time.

Reviewed 5L on: 07/11/17
Always an excellent product by Allan Willcock

Cuprinol Wood Preserver. I just used this to treat my fence, last done 10 years ago with the same product. The fence is in prefect condition, with no signs of rot at all. This product soaks in quickly and is easy to use. More expensive than water based products but well worth the extra cost.

Reviewed 5L on: 31/10/17
Easy to work with by John Hutton

I am very pleased with this item and it has done the job I want.

Reviewed 5L on: 13/10/17
Excellent product at a very competitive price ,very pleased by Mr Nicholas Buxton

Always like to use Cuprinol products and very happy with this product,unable to find anywhere else to match your price ,happy customer .

Reviewed 5L on: 28/09/17
Great pre treatment by M J Palfreyman

Delivered quickly. Seller highly recommended. Great product

Reviewed 5L on: 19/09/17
The product is easy to apply and works very effectively by Victor Ashworth

The product hardly needs a review. It is an established product that does what it says on the tin. What's not to like?

Reviewed 5L on: 18/09/17
Easy to work with by David Swann

A couple of coats like this and the wood was looking great and could visibly see the difference in terms of water repellent. Goes a long way and brushes clean easily

Reviewed 5L on: 11/09/17
Better than the water based by William Short

Better than the water based preservers which are well watery.

Reviewed 5L on: 09/09/17
Excellent by George Zitkus

Bought to provide initial protection to all outer and inner surfaces of new log cabin as well as supporting timbers. Easy to apply and coverage is extensive. Approx 9 litres used to provide two full coats. Brush cleaning simple.

Reviewed 5L on: 24/08/17
Preserves decking but darkens it a little by Alice Joyce Phillips

It darkened the wood a bit despite being clear but otherwise was good and I put two coats on before using cuprinol anti slip, can be applied easily and brushes wash out with water

Reviewed 5L on: 04/08/17
Used on shed by Annette Yates

Very easy to apply, happy with the product.

Reviewed 1L on: 23/06/17
Good base coat for any other stain or garden finish by David Butler

Cuprinol is a firm favourite with me - it does what it says with no fuss. The claer wood preserver has worked well for me in the past, so why use anything else? (I do have some experience of other products form other manufacturers and they don't always do what they say on the tin - 5 year wood-stain lasting just two before flaking, for example)

Reviewed 5L on: 09/06/17
Excellent product and does exactly what it says on the tin :) by Gary H

Easy order process, fast delivery and very well priced products :)

Reviewed 5L on: 10/05/17
As described, easy to apply by brush, though very watery by Elina

As it is a preserver it is hard to tell immediately if it is working, but soaked up to wood very easily.

Reviewed 5L on: 15/04/17