Ronseal Super Flexible Primer and Undercoat

Ronseal Super Flexible Primer and Undercoat helps prepare bare exterior wood before applying any top coat. Use the white undercoat for the light colour range or grey wood primer for all other colours. This product can be used on previously painted wood to cover bold colours and dark marks.

• Looking for an alternative exterior wood primer? Try Ronseal All Surface Primer and Undercoat - Exterior
• Looking for a one coat wood primer for interior use? Try Ronseal One Coat Wood Primer and Undercoat
• For other interior surfaces, consider Ronseal One Coat All Surface Primer and Undercoat
• To seal in knots and resinous areas in wood prior to painting, use Ronseal Knot Block Wood Primer and Undercoat

Ensure the wood surface to be painted with Ronseal Primer and Undercoat is clean, dry and free from dirt, dust and grease. Put down dust sheets to cover anything that you don't want to get paint on.

Bare or New Timber

1. Lightly sand wood with a 120 grit sandpaper, sanding in the direction of the woodgrain
2. Remove any wood dust, and wipe the wood surface with a lint-free cloth dampened with white spirit
3. Fill in any small holes or surface defects with Ronseal Multi Purpose Wood Filler, or Ronseal High Performance Wood Filler for larger repairs
4. Treat any wood knots with an appropriate knotting solution
5. Remove any mould growth with a dedicated mould and mildew cleaner and leave to dry

Previously Painted TImber

1. Old paint that shows signs of cracking, peeling or flaking should be completely removed with a dedicated paint stripper prior to application of Flexible Primer & Undercoat
2. Paintwork in sound condition should be lightly sanded first to provide a key
3. Ensure that all traces of sanding dust have been removed after sanding
4. Fill any gaps or splits in the wood with a suitable wood filler

OId Timber

1. 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
2. Use a suitable wood filler to repair any damaged areas and replace any decayed wood with sound timber
3. Then treat as 'New Timber' above

Always do a small test area before starting any project to assess performance and follow the manufacturer's instructions on the tin at all times.

Stir contents of tin thoroughly prior to and during application to ensure a consistent finish. If the job will require more than one tin, intermix before use to ensure an even colour.

1. Apply two even coats of Ronseal Super Flexible Primer using a good quality synthetic brush and finishing in the direction of the wood grain
2. Apply a second coat after 4 hours
3. After the second coat has dried, give the surface a light sanding with a 240 grit sandpaper

Once Ronseal Super Flexible Primer and Undercoat is fully dry, a top coat of paint can be applied.