When painting oily, resinous wood then the timber should be primed with 1 or 2 coats of Sovereign Aluminium Primer to prevent the oils bleeding into subsequent coatings. Sovereign Trade Primer is a traditional oil based primer for new joinery work. Where a water based primer is required we can offer Sovereign Acrylic Primer or for more exacting requirements Sovereign Stain Blocking Primer. Our Stain Blocking Primer can be used on timber and masonry to prevent tannins, weathered bitumen etc bleeding and spoiling decoration. Sovereign Sprayable Acrylic Primer is a specialist paint designed for spay and flow coat application and is suitable for interior softwood and MDF.