Everbuild fillcoat5 filler coat is a thick base coat for use on imperfect surfaces like walls and ceilings etc prior to painting it will simply cover and seal in one application fillcoat5 is supplied as 5 litres in a plastic re sealable tub for easy use and storage this everbuild fillcoat5 hides and obliterates areas that have been filled badly at some stage as well as covering and preventing the reappearance of hairline cracks this everbuild product works like a roll on filler the thick formula