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Coo-Var Patent Knotting

Coo-Var Patent Knotting

317/V604/13/D
COO762
  • Translucent brown shellac-based solution.
  • Prevents knot stains on wood surfaces.
  • For knotted or resinous wood.
  • Quick drying time of 6 hours at 20°C.
Colour
Size
Finish
£14.70(incl. VAT)
£12.25(ex. VAT)
Quantity
Please choose your colour
Available for Delivery (See Delivery Options Below)

Description

Coo-Var Patent Knotting

This product is a high-performance, shellac-based solution formulated specifically for sealing knots and resinous areas in wood. Once applied, it prevents the resins from bleeding through paint films, ensuring a smooth and blemish-free finish. The translucent brown colour allows easy blending with wood grains, making it ideal for professional woodwork preparation.



Application and Uses

Designed for professional woodworkers and decorators, this product is easy to apply with a brush and can be used on all types of knotted and resinous wood. The formula is tailored to help prevent staining when applying paints or varnishes, making it perfect for interior and exterior wood surfaces. It is quick-drying, touch-dry in just 10 minutes, with a full hardness achieved after 2-3 days.

  • Apply to new or prepared wood surfaces.
  • For use on resinous or knotted areas of timber.
  • Ensure proper surface preparation by cleaning and sanding before application.

Avoid using this product on metal, plastic, or non-wood surfaces, as it is specially formulated for wood sealing. Always ensure adequate ventilation during use, as the product contains a high VOC content. Refer to the data sheet for further details on application techniques and recommended preparation methods.



Drying and Recoating

The product is touch-dry within minutes and can be recoated after 6 hours at 20°C. Full curing and hardness are achieved within 2 to 3 days, ensuring a durable seal that will resist the effects of knot stains over time. For best results, ensure wood is thoroughly clean and sanded before application, and allow sufficient drying time between coats.



Limitations and Restrictions

Do not use this product in areas with insufficient ventilation, as the high VOC content may cause respiratory discomfort. Avoid direct contact with skin, and always wear protective gloves and eyewear. This product is not suitable for non-wood surfaces or areas that will be exposed to high levels of moisture or water.

For best results, pair this product with an appropriate primer and topcoat. Other products from the same manufacturer may be used for further finishing, including specialised primers and topcoats designed for exterior woodwork. Refer to the product data sheet for compatibility recommendations and further information.



Health and Safety

The product is highly flammable and should be kept away from heat sources. It contains PROPAN-2-OL and ETHANOL, both of which may cause serious eye irritation and dizziness. Always use protective equipment, and ensure good ventilation during application. Dispose of any leftover product in accordance with local regulations for hazardous waste.

  • UN Number: 1263
  • VOC Content: < 581 g/l

Product Details
762-874195

Data sheet

Manufacturer
Coo-Var
Interior / Exterior Use
Interior & Exterior
Water / Solvent Based
Solvent
Application Method
Brush
Application Method
Brush
Sheen
Gloss
Colour
Standard / Ready Mixed
Single, Two or Three Pack
Single
Pack Size
250ml, 500ml
Base Type
Shellac
Dry to Recoat (at 20°C)
6 hours
Coverage
13m² per litre
Solids by Volume
27%
Touch Dry
10 Mins
Finish
Gloss
Recommended Dry Film Thickness
20 microns
Recommended Wet Film Thickness
75 microns
UN Number
UN1263
Base Type
Shellac
Suitable For Use On
Resinous Wood
Suitable For Use On
Knotted Wood
Finish
Gloss
Application Method
Brush
Product Usage Type
Sealer
Type of Wood Finish
Wood Preservative & Treatment
Colour Family
Brown
Attachments
Download


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.


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IMPORTANT SHIPPING & DELIVERY INFORMATION

Coo-Var Patent Knotting is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT