Knotting for sealing knots, resinous and creosoted timber to prevent bleeding through paint film. ...Knotting for sealing knots, resinous and creosoted timber to prevent bleeding through paint film. Sandpaper surface smooth before applying liberally over knots and surrounding area. Do not sandpaper knotting once applied. Resinous and creosoted timber should be sealed completely with 2 coats. Allow 1 hour to dry before priming. Clean brushes with methylated spirits. Available in natural or white. Available in sizes: 125ml, 300ml, 500ml (Natural only) & 1ltr. Rustins White Knotting Sealer is based on bleached shellac and alcohol; it is naturally White in colour. For application to bare wood. Clean knots prior to priming/painting. To prevent discolouration of paint film. Generally used with oil-based paints. Rustins White Knotting is not pigmented white, it is made from bleached shellac and is almost colourless compared with standard Knotting, which is naturally brown in colour. If Rustins White Knotting is used it will take less coats of paint or undercoat to hide it, this is only relevant if white or pastel coloured paints are being used. Coverage: 10-12m² per Litre, 1 coat, depending.
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This guide is for anyone using Rustins White Knotting Solution to prepare wood surfaces for painting. The key benefit is preventing knots and resinous areas from bleeding through your paint, ensuring a professional finish. However, remember that proper surface preparation is crucial for optimal results, including sanding and cleaning the wood before application. This guide covers everything from application to troubleshooting.
All features
Colour
White
Model Part Number
KNOW125
Brand
Rustins
Extended Product Information
FAQs
How much area does a can cover?
Coverage is approximately 10-12m² per liter, per coat, depending on the surface.
Can I use this on exterior wood?
Yes, but ensure you follow up with a suitable exterior primer and topcoat designed for outdoor use.
What type of paint should I use after applying Rustins White Knotting Solution?
Rustins White Knotting Solution is generally compatible with oil-based paints. However, always check the paint manufacturer's recommendations and perform a test on a small area to ensure compatibility.
Do I need to sand the knotting solution after it dries?
No. Do not sandpaper knotting once applied, as this could compromise the seal.
How long should I wait before priming and painting?
Allow approximately 1 hour for the knotting solution to dry before priming.
What is the difference between white and standard knotting solution?
Rustins White Knotting Solution is made from bleached shellac and is almost colorless compared with standard Knotting, which is naturally brown in color. It is ideal for use under white or pastel-colored paints. This will mean less coats of primer or paint are needed to hide the knotting.
Troubleshooting
Paint is still bleeding through after application.
Ensure the knotting solution was applied liberally, covering the entire knot and surrounding area. Allow the knotting solution to dry completely before priming. Consider applying a second coat if the knots are particularly resinous.
Brush becomes difficult to clean.
Clean brushes immediately after use with methylated spirits. Do not allow the knotting solution to dry on the brush.
The knotting solution is too thick.
If necessary, slightly thin the solution with methylated spirits, but use sparingly. Ensure the solution is well mixed.
Pros and Cons
Pros
Prevents unsightly resin bleed-through.
Provides a clean, white base for lighter paint colors.
Easy to apply with a brush.
Fast drying time.
Increases the longevity and quality of your paint finish.
Available in multiple sizes for different project requirements.
Cons
Requires proper surface preparation (sanding and cleaning) for best results.
May require multiple coats on heavily resinous wood.
Only effective if applied correctly.
Not pigmented white, so it may still require a couple of coats.
Requires cleaning brushes with methylated spirits.
Setup, Compatibility & Care
Setup:
Ensure the wood surface is clean, dry, and free from loose particles.
Sand the knots and surrounding area to create a key for the knotting solution.
Stir the knotting solution well before use.
Compatibility: Rustins White Knotting Solution is generally compatible with oil-based paints and most primers. Always test compatibility on a small, inconspicuous area first.
Care:
Store in a cool, dry place.
Keep the container tightly sealed when not in use.
Clean brushes immediately after use with methylated spirits.
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