Ronseal's Super Flexible Primer and Undercoat is designed for use on exterior bare or painted wood. It gives great adhesion for further coats and flexes with the wood, meaning it lasts longer and won't flake or crack. The grey primer is designed for darker top coats, while the white is best for lighter colours. The primer also comes with a ten year guarantee when used with 10 Year Weatherproof Wood Paint. Prepare exterior wood for a long-lasting finish with Ronseal's Super Flexible Primer and Undercoat. Designed for bare or previously painted wood, this primer ensures superior adhesion for subsequent coats. Its flexibility moves with the wood, preventing cracking and flaking for extended durability. Choose grey for darker topcoats or white for lighter shades. For ultimate protection, pair it with 10 Year Weatherproof Wood Paint to activate the primer's ten-year guarantee. Ronseal Super Flexible Primer and Undercoat -- A dual-purpose primer and undercoat that helps paint adhere to the wood surface --Covers bold colours and blocks hardwood resins from staining your paint --Flexes with the wood to stop paint cracking in all weather conditions --Low V.O.C content --Drying time4 hrs