Patent Knotting 250ML

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Seals back knots and resinous areas in timber surfaces. Fast drying. Suitable for interior and exterior use.
Patent Knotting

In detail

Blackfriars Patent Knotting is a solution is for sealing knots and resinous areas on interior and exterior timber. Quick drying and produces a pale brown film that seals the surface. Prior to use, scrape and de-grease using methylated spirits.

Thinning is not required or recommended. Application is by brush, to be applied at least 12mm beyond the affected area. Touch dry between 15-30 minutes and recoatable in 1 hour. 2 coats are recommended.

Application Methods
Up to 14sq/m per litre 
VOC level
Do not thin 
Touch dry
Up to 1 hour 
Up to 1 hour 
Methylated Spirit 

Additional information

Ensure surface is clean, dry and dust free. Remove any excess resin from knots by scraping then cleaning with methylated spirit.

Ensure the product is thoroughly shaken prior to use. Apply evenly using a soft brush. Overlap the knot or resinous area by at least 12mm. Apply a minimum of 2 coats, allowing to fully dry between coats.

Not required.

Not to be used as a finishing coat. Not suitable for use under clear coatings. If knots exude excess resin we recommend that they are completely removed and made good with sound timber and wood filler or a wood stopper.

Drying Time
Touch dry in 15 - 30 minutes. Recoat after 1 hour. Drying times are based on an ambient temperature of 20°C and 50% relative humidity. Lower temperatures or higher humidity will prolong the drying and overcoating times.

Clean Up
Remove as much product as possible from application equipment before washing with methylated spirit. Do not empty into drains or water courses. Some local authorities have special facilities for the disposal of waste coatings.

Store in a dry, safe place. Do not store in environments where extreme temperatures may occur. Keep within 5-30°C. Do not store in direct sunlight.