Unibond repair wood for good is a polyester based filler ideal for repairing all timbers including pine birch oak and mahogany as well as composite wood materials such as plywood chipboard and mdf it is easy to sand carve and shape doesnt shrink once set and can be sanded drilled painted varnished and stained mix and use carefully and thoroughly according to pack instructions in a well ventilated area wear suitable gloves sets hard in 10 minutes do not use at temperatures below 5 c use only on