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Cuprinol 5 Year Ducksback is formulated for exterior use only on rough sawn wood including fences, sheds, gates, trellis and pergolas. It may be applied to wood that has been previously pressure treated, or treated with creosote provided it has been allowed to weather. Cuprinol 5 Year Ducksback should not be used on smooth or planed wood, decking or garden furniture.
A 5L tub is normally sufficient for: 30m² with 1 coat, or 8 fence panel sides (6' x 6')Coverage can vary depending on the condition and nature of the surface.