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Ronseal Knot Block Wood Primer and Undercoat
£8.98 - £22.91
£8.98 - £22.91
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FREE Delivery over £60.
Order by 5pm for next day option*
Order by 5pm for next day option*
Apply to interior wood to stop knots showing through paint.
Features
- An all-in-one white primer and undercoat for a long lasting knot-free base
- Prepares bare and previously painted interior wood for top coat paints
- Stops wood knots and wood resins showing through your paint
- Covers bold colours, dark marks and helps paint to stick
- Low V.O.C content
| Brand | Ronseal |
|---|---|
| No. of coats | 2 |
| Coverage | Up to 12m² per litre |
| Drying time | 4 hrs |
| Size | 250ml, 750ml, 2.5L |
| MPN | Please Select Size/Option |
| GTIN | Please Select Size/Option |
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Overview
Ronseal Knot Block Wood Primer And Undercoat is perfect for preparing bare and previously painted interior wood for painting.
- Looking for an alternative stain blocking solution? Try Ronseal One Coat Stain Block
- Looking for a one coat primer and undercoat for wood? Try Ronseal One Coat Wood Primer and Undercoat
- For other types of interior surfaces, use Ronseal One Coat All Surface Primer and Undercoat
- For exterior surfaces, see Ronseal All Surface Primer and Undercoat - Exterior
Preparation
Ensure that wooden surfaces to be treated are clean, dry and free from dirt, dust and any other surface contaminants. Make sure the room temperature is above 10°C. Put down dust sheets to cover any areas that do not need painting.
- Lightly sand wood using 120 grit sandpaper in the direction of the wood grain to give it an even finish
- Vacuum and wipe wood over with white spirit, being sure to remove any sanding dust, prior to painting
- Any instances of wet rot can be treated with Ronseal Wet Rot Wood Hardener, and any existing woodworm can be eradicated with Ronseal Woodworm Killer
- Fill any holes or cracks with Ronseal High Performance Wood Filler or Ronseal Multi Purpose Wood Filler
Application
Always do a small test area before beginning any project to assess performance. Follow the manufacturer's instructions on the tin at all times. Stir the contents of the tin thoroughly prior to use.
- Apply Knot Block Wood Primer using a good quality synthetic brush in the direction of the wood grain
- Allow 4 hours to dry, then apply a second coat
Finishing
Once fully dry, Ronseal Knot Block Wood Primer & Undercoat can be over-coated with Ronseal Stays White Ultra Tough Paint, Ronseal Stays White One Coat Non Drip Paint or Ronseal Diamond Hard Floor Paint.
F.A.Q.
When using this on a shed, should I paint both sides of the slats or just the outside?
Can you successfully spray Ronseal Knot Block Primer and Undercoat with an airless sprayer?
This product is only suitable for interior use and can't be used on a shed. If you are after an external knot blocking primer, consider a knotting solution such as Barrettine White Knotting followed by Protek Stain Blocking Primer
Can you successfully spray Ronseal Knot Block Primer and Undercoat with an airless sprayer?
We do not recommend spray application, it is best suited to brush or roller application.
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