Rustins Knotting 125ml

Rustins Knotting 125ml is a high-quality shellac-based primer designed specifically to seal resinous knots and sap streaks in timber before painting or varnishing. It is an essential preparation product for decorators, carpenters, and DIY enthusiasts who want a smooth, blemish-free finish that lasts.

This traditional knotting solution works by preventing resins from bleeding through paint or varnish, which can cause unsightly stains and discolouration over time. Once applied, it dries quickly to a hard, smooth surface, creating an effective barrier between the timber and your chosen topcoat.

Key Features & Benefits:

• Prevents Resin Bleed-Through: Seals knots and sap streaks in softwoods, stopping brown or yellow stains from ruining the finish.

• Shellac-Based Formula: Proven, traditional solution that provides excellent adhesion and sealing properties.

• Quick Drying: Touch dry in approximately 15 minutes, allowing you to move on to painting or varnishing sooner.

• Easy to Apply: Suitable for brush application, providing smooth and even coverage.

• Versatile Use: Ideal for both interior and exterior woodwork when overcoated with a suitable finish.

• Professional Finish: Helps achieve a clean, durable surface ready for decoration.

Application Instructions:

1. Ensure the surface is clean, dry, and free from dust, grease, or previous coatings that may affect adhesion.

2. Stir well before use.

3. Apply with a clean brush, coating the knots and resinous areas only.

4. Allow to dry for approximately 15 minutes before lightly sanding.

5. Apply a second coat if necessary. Once fully dry, overcoat with your chosen primer, paint, or varnish.

Technical Details:

• Size: 125ml tin

• Finish: Clear to light amber

• Drying Time: Touch dry in ~15 minutes, recoat after ~30 minutes

• Coverage: Approximately 14m² per litre (depending on surface type and application method)

• Cleanup: Brushes should be cleaned immediately with methylated spirits.

Safety Advice:

• Highly flammable – keep away from heat and open flames.

• Use in a well-ventilated area.

• Keep out of reach of children.

• Wear gloves and eye protection during use.