Intergrain UltraPrep Timber Cleaner prepares timber for coating. It removes weathering, grey discolouration, rust and tannin stains, mould and mildew, bringing timber back to a clean surface ready for oil.
Mix one part cleaner to four parts water, scrub it into wetted timber, leave it for 10–15 minutes while keeping the timber damp, then rinse it off thoroughly. Heavy staining or tannin-rich timber may need a stronger mix or a second application. It contains citric acid, so keep it off plants, painted surfaces, concrete and metal, and wear waterproof gloves and safety glasses.
- Restores weathered, grey and stained timber
- Prepares timber before oiling
- Water clean-up






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