It’s easy to keep your paint job looking great by applying a base coat of stain blocking primer first, stopping tannins from wood coming through and staining your paint coating.
Thorndown Stain Blocking Primer is a high performing multi-surface primer primarily developed for tannin and stain blocking on timber surfaces.
It works on all untreated softwood and hardwood timber surfaces, including pine, cedar, redwood, plywood, MDF and hardboard. And pressure treated timber the you need to refresh the preservative treatment, Accoya, and all painted surfaces of timber, masonry and plaster.
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