Primer Paint

Here comes the summer

We're giving our front doors a welcome splash of colour

Ronseal Knot Block Wood Primer & Undercoat

Our Knot Block Wood Primer & Undercoat is the only primer to stop wood resins staining through paint permanently. Use it as a basecoat on bare wood or previously painted wood and you're guaranteed a great, stain-free finish.

  • Stops wood resins from staining through - permanently
  • Prevents paintwork from being ruined
  • Excellent hiding power
  • Low odour formula
  • Areas of use:
    Knotty or resinous woods (oak, teak cedar, mahogany)
  • Coverage:
    13.0 m2 covered per litre
  • Number of coats:
    2
  • Finish:
    N/A
  • Application:
    Brush
  • Drying time:
    6 hours

Protection level

This product has a protection level of Very High

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Available Colours

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Diamond Hard Wood Paint
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Help and Advice

How to videos FAQs

  • How long will it block wood knots for?

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    Answer

    Permanently. It stops wood resins from staining through to the top coat by creating a barrier that contains and seals them.

  • What top coat should I use with it?

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    Answer

    Use our Diamond Hard Wood Paint to guarantee all wood knots are permanently blocked. It's also the ideal basecoat for any topcoat finish.

  • Can I use it on previously painted wood.

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    Answer

    Yes. It's actually designed to stick well on to and protect not just bare, but previously painted wood too.

  • get a long lasting finish from your topcoat

    How to get a long lasting finish from your topcoat

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  • paint and protect your exterior door

    How to paint and protect your exterior door

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  • stop wood knots staining your interior wood

    How to stop wood knots staining your interior wood

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