Silicone sealant mould will vanish and not grow back if cleaned with 1 natural item 0 25.09.2024 10:09 Express.co.uk Bathrooms can be a hot spot for black mould as it can only thrive in damp areas, but there is a simple way to remove it from tricky areas like silicone sealant using one natural ingredient you likely have in your kitchen cupboard.