Specially formulated from millions of tiny glass bubbles to fill most holes and gaps in one application. It is suitable for use indoors and outdoors and gives a super smooth brilliant white finish which does not need sanding. It is very fast drying and can be over decorated within minutes. (When using oil based paints leave filler to dry for 12 hours). Mangers lightweight filler is very effective for filling large holes in one application as it will not slump or shrink reducing the need to build up layers of filler.