How do I recaulk or reseal a bathtub?

Cracked or mouldy sealant lets water seep behind your bath, so it is worth replacing. The key to a good result is a clean, dry surface.

Fill the bath with water before sealing so the gap is at its widest.

Steps

Cut out the old sealant with a sealant remover or sharp tool, clean the gap with a mild cleaner and dry it fully. Apply masking tape either side, run a steady bead of sanitary silicone, smooth it with a wet finger or tool and remove the tape.

Let it cure

Leave the sealant to cure for the time on the packaging before using the shower or draining the bath.