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How Do I Paint Exterior Ash?

Ash is a light hardwood used externally generally for cladding and weatherboard

  • Clean down as required using Tikkurila Cleaning agent or similar to remove any grease oil or other contamination. It is advised to apply a stain-blocking primer to untreated ash prior to top coating.  
  • If previously painted, remove any loose, flaking paint with a scraper and feather off any edges. 
  • Sand hard, glossy and industrially painted surfaces matt. Remove sanding dust. Fill holes and cracks and sand the filled parts.


  1. Ultra Primer


  1. Pinja Flex Isolator (Blocking Primer, Exterior)


  1. Ultra Matt
  2. Ultra Classic
  3. Valtti Opaque

For wood staining ash omit primer above and apply two coats of either of the following:

  1. Valtti Color
  2. Valtti Plus Kesto (satin woodstain, brush/roller only)

If you require more advice on painting ash, give our technical team a call on 0131 334 4999 or send them a message here.

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Paint Calculator

How much paint do I need? 

Use this calculator to work out your requirements, if you have any question please get in touch with one of our team who will be more than willing to help you.

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Disclaimer: Tikkurila UK Paint Calculator is provided as a guide only. The coverage rates will vary depending on surface being coated and the particular product range being used. More information on these products can be found on the cans, on the technical data sheets on individual product pages, by using our live chat service or by calling our technical team on 0131 334 4999.

Every effort has been made to ensure the accuracy of the estimate, however paint requirements may vary depending on the surface, type of paint, sheen level and colour chosen.