- How It Works: A low-viscosity resin that soaks into soft, wet-rot-damaged timber and cures to re-solidify the wood fibres from within – creating a firm base that holds screws, filler, and paint, instead of crumbling. Use Before Wood Filler or Paint
- Cure Time: Touch-dry in around 1 hour and ready for wood filler or overcoating the same day (confirm exact timing on the tin before publishing) – so most repairs can be filled and painted in a single session.
- Simple Brush-On Application: Apply liberally with a brush to soft, dry, sound-enough timber until it stops absorbing – no mixing, no special tools, ready for wood filler once cured.
- Indoor & Outdoor Use: Wet Rot Repair, suitable for window sills, door frames, skirting, decking, fence posts and fascia boards, both indoors and outdoors, once painted or sealed over for exterior protection.
- Wet Rot vs Dry Rot: Formulated to consolidate wet-rot-damaged timber (soft, decayed wood from moisture) as part of a standard filler-and-repaint repair – not a treatment for active dry rot fungal infestation, which needs specialist removal.






Rustins Wood Hardener for Rotted Wood 500ml – Repairs Rotted Timber | Fast-Acting Formula Reinforces Soft, Damaged Areas Before Filling or Painting
£13.01
A low-viscosity resin that soaks into soft, wet-rot-damaged timber and cures to re-solidify the wood fibres from within – creating a firm base that holds screws, filler, and paint, instead of crumbling. Use Before Wood Filler or Paint
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