Johnstones Wood Primer White. Johnstone's Wood Primer is a solvent based primer formulated for interior and exterior use on new or bare softwood and non-oily hardwood joinery.It provides the ideal surface for overcoating with Johnstone's Professional Undercoat.
Use our paint calculator to work out how much you need
Enter the dimensions of your walls, details of any gaps like windows and doors, and click calculate
Remember: It's probably better to have a bit too much than to order too little!
This is based on a coverage of 10m² per litre of paint and one coat of paint.
Make sure you always check the coverage on the product page before purchasing and, if covering a dark or bright colour, you may need two or three coats.