Johnstone’s Trade Professional Undercoat

About this product:

Johnstone’s Professional Undercoat is a premium quality, alkyd based undercoat formulated for interior and exterior use on wood and metal surfaces. It provides the perfect surface for overcoating with Johnstone’s Professional Gloss.

Technical Information


16-24 hours


16-18m² per litre



Key Benefits

  • An alkyd resin based undercoat
  • Interior and exterior use
  • Excellent opacity
  • Excellent obliteration qualities
  • Perfect surface for overcoating with gloss

Product Information

  • Sizes

    5lt, 2.5lt

  • Colours

    Brilliant white, Dark Grey

Application Method

Stir well. Easy to apply by brush or roller. Do not apply over polystyrene surfaces.