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