Beautiflex Opaque Woodstain Black (Ready Mixed) 2.5L

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Solvent-based opaque woodstain. Highly flexible and UV resistant. Providing up to 7 years protection.
Beautiflex Opaque Woodstain Black (Ready Mixed)

In detail

Sadolin Beautiflex is a high performance, solvent-based opaque woodstain designed for use in cooler temperatures. This allows for application well into the autumn season.

It is suitable for all bare or previously coated timber surfaces, including decking.

The highly flexible finish has an improved microporous formula which works and flexes with the substrate, resisting cracking, peeling and flaking.

Beautiflex has a long lasting protection of up to 7 years, this is due to its water and UV resistance.

Application is recommended by synthetic brush with coverage up to 15sq/m per litre.

Touch dry in 4-6 hours and recoatable in 16-24 hours

2 coats are recommended.

Application Methods
Up to 15sq/m per litre 
VOC level
Not recommended 
Touch dry
4-8 hours 
12-24 hours 
Suitable for...
Exterior use 
Up to 7 years 
Colour type
Ready Mixed 
Brush cleaner or White spirit 

Additional information

Sadolin Beautiflex Solvent Opaque Woodstain provides a beautiful, flexible finish for exterior wood. The microporous formulation enables the substrate to move, resisting cracking, peeling and flaking, which in turn provides long lasting protection for up to 7 years*. Sadolin Beautiflex offers a solid colour finish with excellent opacity, superb colour retention and superior weather resistance, particularly to UV and water. Highly durable and easy to apply Sadolin Beautiflex is the perfect solution for exterior wood protection.


We recommend a trial application before you start. The final colour will depend on the original colour and condition of the wood and the number of coats applied.

  • New or bare wood: Timber exposed to the weather for 4 weeks or more should be sanded back to a clean sound surface. Wipe down bare timber with a cloth dampened with methylated spirits. Cellulose thinners should be used on oily timber such as Teak/Iroko. Do not use white spirit. If using a non-durable timber treat with Sadolin Wood Preserver before using a woodstain. For best results all decking boards should be coated all round prior to fixing.
  • Previously painted or varnished surfaces: Strip bare and treated as new wood.
  • Previously woodstained surfaces: Ensure surfaces are clean, dry and free from contaminants. Any loose, flaking coating should be removed by use of a scraper or abrasive paper. Any grey denatured timber should be mechanically sanded back to a clean sound surface. Any mould and algal growth must be eradicated using a suitable fungicide/algicide. Wash surfaces with a mild detergent and rinse with clean water. Allow to fully dry. Wipe all surfaces with a cloth dampened with methylated spirits. As with new wood preparation oily timbers require wiping with ceullulose thinners. As with all coatings, preparation is key and poor preparation will result in poor coating performance.


  • Stir well before and during application with a suitable stirring instrument.
  • Do not apply at temperatures below 8°C or above 25°C, in damp conditions or when rain is imminent.
  • Apply 2 to 3 coats depending on the finish and depth of colour required.
  • For best results use a synthetic bristle brush.
  • Avoid over brushing as this will result in brush marks.
  • Lightly denib between coats if there is any raised grain.
  • Special attention should be taken to ensure freshly sawn ends of decking boards are thoroughly treated with a suitable preservative.
  • Due to the high levels of weathering and abrasion that decks are exposed to, maintenance may be required as frequently as every year.