M400 Pure shellac varnish works perfectly as a plaster sealer and can be thinned with methylated spirits.
Shellac products have a variety of uses from finishing antiques and reproduction furniture to acting as a barrier between two normally incompatible finishes.
They are particularly useful when refurbishing furniture as they will seal in any wax product which may have been applied to the furniture in the past.
Available in :
5 Litre