- 19 Jan 2019
- Reaction score
Over the last few months I've made several workshop items using birch ply which I varnished with 3 coats of Ronseal (router table, bench sander and sanding organiser). I've left them in the garage, together with all the offcuts and the amount of rain we've had has made the garage very damp and all the birch ply, even the varnished items, are covered in black mould! The unvarnished offcuts are worse but can anybody advise how I can treat this please? and can I totally remove the black staining?