Stain Blocking Primer

Protek Stain Blocking Primer is effective at blocking tannins, pressure treatment chemicals and rust (from nail heads) bleeding through to the top coat.


We would recommend using this primer when white or light colours are used as a topcoat to stop any unsightly yellow staining coming through from the wood. This is not usually an issue with natural wood colours so it is not necessary to use this primer with them.


For use on all outside wood that is not in direct contact to soil or surface water.


Clear with a slight sheen


Up to 5 years


8m2 per litre per coat

Apply By

Synthetis brush designed for water-borne products

Drying Time

1 hour under normal conditions (20C/ 65% rel. humidity). Low temperatures, increased humidity and ingredients of some wood types may increase drying time.

VOC & Odour

Low <41 g/l (Cat. A/f): 130 g/l (2010)

Suitable For

Horizontal & Vertical surfaces
Softwood and certain Hardwoods
Planed & Rough-Sawn timber can be used inside and out