Polycell all purpose filler 600gthis filler from polycell comes ready to use and is perfect for filling holes up to 5 mm deep on internal external surfaces of your home simply apply with a filling wet knife to plaster plasterboard ceiling coving and mouldings and leave for 15 minutess to dry its non shrinking or cracking to ensure it has a longer life it can be painted over once its dried ideal for colour matching with your existing decor