Sadolin Superdec Opaque Wood Protection

  4.8/5.0   17 reviews

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

Wood type and application can vary coverage

  • A self-priming, waterborne opaque coating system for exterior wooden surfaces
  • Perfect for all exterior joinery, including windows, doors and conservatories
  • Exceptional durability
  • Offers up to 8 years protection
  • Remains flexible and resists cracking, peeling and flaking
  • Dries to an opaque satin or gloss finish
Brand Sadolin
No. of coats 2
Coverage Up to 10 per litre
Drying time hrs
Size 1L, 2.5L
MPN 011262, 299684, 011279, 299308, 316413, 236794, 316987, 236788
GTIN 5721147973365, 5721143137426, 5721147973341, 5721143137334, 5721147973587, 5721143137433, 5721147973570, 5721143137341

Sadolin Superdec provides a solution to most common issues associated with traditional paints. It can be applied to new and previously painted or stained surfaces, and is ideal for use where a complete change of colour is required or where the existing surface has become weathered and uneven in appearance.

Please Note: This product is not suitable for use on decking.

Wooden surfaces to be treated with Sadolin Superdec must be suitably prepared, clean, dry and free from all traces of surface dust and debris. The moisture content should not exceed 18% prior to coating.

New or Bare Wood

  • Resinous deposits on bare timber, especially new wood, should be removed by wiping with a lint-free cloth dampened with methylated spirits
  • Knotting agents should not be used in conjunction with Sadolin Opaque Wood Protection
  • Sadolin Wood Filler or Sadolin Stainable Wood Filler may be used for making good any minor surface defects, imperfections or open joints
  • Some general or 'All Purpose' fillers may not be suitable
  • Only use non-ferrous fixings, screws and nails
  • Where there is a risk of extractive discolouration, especially when using white or pale colours on resinous / knotty softwoods and coloured hardwoods, an initial coat of a suitable blocking primer is recommended in order to minimise the risk of this type of discolouration
  • Timber that has been exposed for 4 weeks or more will require sanding back to a clean, sound surface
  • If required, pre-treat wood with Sadolin Quick Drying Wood Preserver before applying Sadolin Superdec
  • Lightly abrade (sand), in the direction of the grain to a smooth surface, using a medium grade abrasive paper
  • Do not break through the existing surface coating
  • Thoroughly remove all wood dust
  • Where there is localised damage, or deterioration has occurred as a result of exposure of the factory coating for longer than 3 months, affected areas should be thoroughly sanded back to a sound substrate and recoated

Previously Painted or Varnished Wood

  • Previously painted and varnished surfaces in good condition should only require a thorough sanding to aid with adhesion
  • Stained surfaces in good condition should only need to be washed down with warm water and detergent, allowing to dry before application
  • For surfaces in poor condition, remove any loose, flaking material with a scraper or abrasive paper, sanding in the direction of the grain
  • Remove any weathered timber, and sand the sound coating with abrasive paper to provide an adequate key
  • Strip any surfaces in poor condition bare and treat as new wood
  • Where there is localised damage, or deterioration has occurred as a result of exposure of the factory coating for longer than 3 months, affected areas should be thoroughly sanded back to a sound substrate and re-coated


  • The backs of new glazing beads, end grains and rebates should be brought to a finish with Superdec Opaque Wood Protection prior to fixing
  • Joinery to be coated with Sadolin Superdec should be glazed using a suitable sealant
  • The use of linseed oil putty or modified, non-setting compounds are not recommended in conjunction with our wood protection systems
  • To confirm compatibility, please consult the manufacturer of the relevant glazing material
  • Silicone glazing materials should only be applied upon completion of the finishing coats

Applying Sadolin Superdec Opaque

Always do a small test area before starting any project to assess product suitability, adhesion and finish. Follow the manufacturer's instructions on the tin at all times.


Do not apply if there is a risk of rain, or when air / substrate temperatures are below 8℃ or above 25℃ or the relative humidity is above 80% during application or drying periods. Protect from frost and rain until dry. Failure to meet these requirements may adversely affect the drying, visual quality and durability of the finish.

Initial Procedure

Ensure Sadolin Superdec Opaque Wood Protection is thoroughly stirred before and during application, otherwise sheen and colour variations may be experienced. Sadolin Superdec is supplied ready for use. Do not thin.


  1. Apply Sadolin Superdec in a full flowing coat, ensuring all surfaces and end grains are fully coated
  2. For best results, use a good quality synthetic fibre brush specifically designed for use with waterborne products
  3. Pay special attention to end grain, tops and bottoms of doors, and undersides of window sills
  4. Allow 4 hours to dry

To ensure optimum durability and uniformity of appearance, once Sadolin Superdec has dried we recommend finishing with 2 full coats of Sadolin Woodshield High Pigment Woodstain, allowing a minimum of 16-24 hours drying time between coats. In some instances on new timber, or where a strong colour change is required, a third coat may be necessary.


A lightening in colour, reduction in sheen and a loss of water-repellency is an indication that maintenance is required. For general maintenance, lightly abrade in the direction of the wood grain and clean using warm water and a mild detergent, then rinse thoroughly with clean water. Once dry, a fresh coat of Sadolin Superdec Opaque Wood Protection can be applied.

If the finish is badly flaking or peeling, to the point where the bare wood is showing through or has started to grey, please follow the full Preparation and Application instructions above.

17 customer reviews
Fantastic product very quick drying by Ms S Nutbourne

In my experience, most paint finishes that are very quick drying are very hard to apply. This paint is very easy to apply, gives a lovely finish and is extremely quick drying. I will be recommending it to all my friends and family. The coverage is much better than I expected so I bought way more than I needed!

Reviewed 2.5L, White - Gloss on: 04/11/17
Superb stuff by Gavin Mcfadyean

Water based, quick drying, high opacity, just brilliant stuff.

Reviewed 2.5L, White - Satin on: 02/11/17
Easy to apply, good coverage by MR B H LYNESS

Used for external paintwork. Easy to apply, good coverage. Finish not as glossy as previous brands, but impressed by 8 year durability warranty.

Reviewed 2.5L, White - Gloss on: 25/10/17
Good product, covers well, looks good by Terry Kelly

Brushes can be cleaned in water, covers well but it is better to give at least two coats.

Reviewed 2.5L, Black - Satin on: 23/10/17
Does the job expected by Peter De Haan

Went on easy, better than paint. Nice opaque finish. Waiting to see how it fares outside on the new gates over winter.

Reviewed 1L, White - Satin on: 14/10/17
Quality product, easy to use by Pete

Good product. Finish is good. Easy to apply. Dries quickly. Hard to clean the brushes at the end of the day (I wrapped my brush in foil to stop it going dry during tea).

Reviewed 2.5L, White - Gloss on: 12/10/17
Excellent product by Hassan Hagag

This product is one of the best paint, I have been using it for a long time specially for external or internal wood work, it arrived very quickly and good price and well packaged, thanks

Reviewed 2.5L, White - Satin on: 08/10/17
Does the job without the need for undercoat by Michael Gallagher

does the job without the need for undercoat - cant comment on longevity but claim 8 years. Easy with it being water based.

Reviewed 2.5L, Black - Satin on: 12/09/17
Good product spreads and covers well by Richard Hunt

I have used Superdec on a number occasions and find it is a good quality exterior paint which we have used on our barn conversion. As the finish is semi gloss (satin) it stays clean and expels water.

Reviewed 2.5L, Black - Satin on: 03/09/17
Quick drying quality non gloss wood finish, needs to be stirred well by Jane In Lancashire

Does the job brilliantly and can be mixed in a big range of colours including RAL. This means that you can colour match to other paints and finishes such as masonry paint.

Reviewed 2.5L, Black - Satin on: 15/08/17
Good paint, but by Newbie Window Painter

Bought this paint for some softwood new windows. Took 4 coats in the end to cover to properly and stop being streaky. Thankfully its water based its so easy to clean up between coats! Windows not installed yet so cannot comment on its durability, tin claims 8 years. Service from wood finishes direct was fantastic, next day delivery for free and tin properly packaged with no chance of spillage/damage.

Reviewed 2.5L, White - Satin on: 10/07/17
Great product and looks brilliant easy to apply by S Harris

Much better than other products on the market

Reviewed 2.5L, White - Satin on: 29/04/17
Easy application great finish by James Robinson

Goes on real easy, does not smell and seems to repel water like "a ducks back". 2 coats gave a nice solid finish

Reviewed 2.5L, Black - Satin on: 18/02/17
Out performs any other product I have used by Derek Henden

Outstanding adhesion and durability. A little tricky to apply in very hot conditions.

Reviewed 2.5L, White - Gloss on: 16/09/16
Good by AB

Good product, but needs at least three coats.

Reviewed 1L, White - Satin on: 12/05/16
Excellent coverage by Steve JONES

Excellent coverage. Seeps well into new wood and also covers existing finishes. Have used on soars for 15 years. No rot.

Reviewed 1L, Black - Satin on: 13/11/15
Superb product - does what it says by IAN GLAZE

Used this product - unbeatable in my opinion

Reviewed 1L, Black - Satin on: 06/11/15