Fossa Substain WB Exterior Woodstain

Fossa Substain WB is a low-maintenance, highly translucent, low-build exterior woodstain which produces a beautiful, translucent low sheen finish that highlights the grain of your timber. It's a direct replacement for the popular Sikkens Cetol BL21 Plus, and we think it beats it hands down too!

It's formulated using an innovative water-borne blend of alkyd and acrylic resins for good moisture vapour permeability, and includes selected preservatives and pigments to help protect your architectural timber from disfiguring moulds, fungi, and UV damage - which causes greying and denaturing of exposed wooden surfaces.

Fossa Substain WB exterior woodstain dries exceptionally quickly, often allowing you to apply a full three coat woodstain system in one day during good weather, which can save a great deal of time, as well as labour and equipment hire costs. Considering the changable weather condistions in the UK this has proven to be of real benefit for painting contractors, yet there is no compromise on the quality of the finish.

Fossa Substain WB is for application to prepared, dry, smooth planed exterior hardwoods and softwoods as either a:

  1. 1 x coat Substain (basestain), which is to be overcoated with 2 x coats of Fossa Superstain WB (topcoat).
  2. stand alone 3 x coat system where a lower film build is preferred such as garden furniture, hand rails etc.

Fossa Substain WB Exterior Woodsatin is ideal for application to fully dry, prepared bare exterior architectural hardwood and softwood timber windows, doors, cladding etc. producing a beautiful translucent finish which acentuates the the grain of your timber.

All exterior coatings need to incorporate some pigment within the formulation to protect wood surfaces from Ultra Violet (UV) light from the sun, otherwise UV will quickly denature wood fibres on the surface of your timber, turning them grey and denatured, which usually results in the loss of adhesion of any existing paint coating film by blistering and flaking. Choose one of our lighter coloured pigments if you wish to minimise any colour change, but do use a pigmented woodstain!

Coverage: 4 - 12 square meters per litre per coat, depending on surface condition and timber species.
Application: Stir/shake very well before use - right to the bottom of the can. Apply to prepared, dry, bare wood surfaces using a good quality synthetic paint brush. Denib lightly between coats with Fossa Brass Wire Wool taking care not to break through the coating film. Do not apply when drying and application temperatures are below 10 deg C.
Touch dry: Minimum 1 hour. Recoatable: minimum 4 hours Fully dry: minimum 12 hours, full hardness in 7 days. (Drying times based on good drying conditions 20 deg C  and less than 65% humidity).
Clean-up: Clean tools and equipment in warm soapy water.
Do not thin.

Note: Actual woodstain colour achieved will vary depending on surface condition and timber species. Always apply a test application to an inconspicuous area to satisfy yourself as to suitability.

Fossa Substain WB Exterior Wood Stain is available in Oak, Walnut, Chestnut, Mahogany, and Ebony. Supplied in 1 Litre and 2.5 Litre metal cans.

1 litre Oak **offer**£9.69
1 litre (other colours)£16.20
2.5 litre Oak **offer**£23.50
2.5 litre (other colours)£40.63

*all prices include VAT

As low as
Fossa Substain WB Exterior Woodstain