Mould can be very difficult to remove from silicone sealant but there is a natural product that can do the job in 10 minutes ...

That's why learning how to waterproof it with silicone sealant is such a game-changer. To do this, you'll need a quality silicone sealant, ideally one labeled for bathroom use like the GE Supreme ...

Many synthetic waterproofers are silicone-based ... to follow drying times on the label closely to ensure a strong waterproof seal and avoid staining your shoes by overapplying.