Johnstone’s Trade Stormshield Flexible Primer Undercoat is a solvent based, high quality, combined primer and undercoat, great for providing long lasting protection to exterior wood and metalwork.
Johnstone's Flexible Undercoat retains flexibility for longer, and is specifically for use in conjunction with the Johnstone's Trade Flexible top coats; Stormshield Flexible Gloss and Stormshield Flexible Satin.
This Primer Undercoat can mixed into over 500 Johnstone's Trade colours or it is available ready mixed in Brilliant White.
For a water based equivalent, try using Johnstone’s Trade Joncryl Water Based Primer Undercoat.