Rustins Knotting is a traditional, highly effective solution designed to seal knots and resinous areas in timber, preventing unsightly staining and resin bleed-through that can spoil painted finishes. This preparatory treatment is essential for ensuring a professional and lasting paint finish on softwoods and other resinous timbers.

Key Features & Benefits:

• Effective Knot Sealant:
  Prevents resin and sap bleed-through, protecting the integrity of painted surfaces.
• Quick Drying:
  Ready for priming in approximately 1 hour, allowing for fast project progression.
• Suitable for Resinous & Creosoted Timber:
  Ideal for sealing surfaces prone to staining from natural oils and resins.
• Traditional Shellac-Based Formula:
  Provides a proven, reliable barrier over timber knots.
• Easy Application:
  Applies easily with a brush; dries to a hard, sealed finish ready for painting.

Technical Specifications:

Specification Detail Type Shellac-based knotting solution Drying Time Approx. 1 hour (may vary with temperature and humidity) Recommended Coats 12 coats depending on the resin content Clean-Up Methylated spirits Suitable Surfaces Bare wood, resinous and creosoted timber Finish Clear/semi-clear shellac finish Application Method Brush Interior/Exterior Suitable for both

Application Instructions:

1. Surface Preparation:
2. Sand the surface smooth to remove any roughness.
3. Ensure the area is dry, clean, and dust-free.
4. Application:
5. Stir well before use.
6. Apply liberally over knots and surrounding areas using a brush.
7. Coating:
8. For resinous and creosoted timber, apply two coats for full sealing.
9. Allow approximately 1 hour drying time between coats and before applying primer.
10. Aftercare:

• • Do not sand the knotting after application, as this may break the seal.

  • Clean brushes with methylated spirits immediately after use.

Recommended Applications:

• Sealing knots on doors, windows, skirting boards, and furniture
• Priming timber panelling and joinery prior to painting
• Preparing creosoted timber to ensure a smooth, stable paint base
• Suitable for both new and aged wood

Important Usage Notes:

• Compatibility: Not recommended for use under polyurethane clear varnishes, water-based varnishes, or water-based paints as it may impair adhesion or cause discoloration.
• Priming: Once dry, overcoat with a suitable primer before applying the final paint finish.

FAQs:

• Q: Can I use Rustins Knotting on exterior wood?
  A: Yes, it is suitable for exterior use but must be overcoated with a suitable exterior primer and paint.
• Q: Is this product clear when dry?
  A: It typically dries with a slight amber tint due to the shellac content, but this is covered when painted over.
• Q: How do I clean my brush after use?
  A: Clean brushes thoroughly with methylated spirits immediately after use.
• Q: Can I apply water-based paint over Rustins Knotting?
  A: No, this product is not suitable under water-based paints or varnishes. Use an oil-based primer and finish instead.

Safety & Storage Information:

• Flammable: Keep away from heat, sparks, and open flames.
• Use in a well-ventilated area.
• Store tightly closed in a cool, dry place.
• Keep out of reach of children.

Warranty Information:

Rustins guarantees product quality when applied as per the instructions. For technical support, contact Rustins Customer Service.