Mould and mildew in bathrooms are both unattractive and unhygienic. They can also present problems to anybody with allergies, causing sore throats, coughing and eye irritation. Mildew loves warm and damp conditions and our bathrooms and kitchens contain the ideal environments for it to develop. If mildew does develop it can also lead to further problems causing damage to woodwork and possibly leading to rot. Bathrooms in particular are susceptible as they can be the most humid rooms in our homes.An effective bathroom sealant will help to combat the development of mould or mildew; the most vulnerable areas in a bathroom are baths, sinks, showers and toilets. If moisture is allowed to penetrate into cracks and joints that can be found between these features and the walls of the room, it will lead to the formation of china air cooler mould and mildew in the cavities around and below them. These areas will be difficult, if not impossible, to access for cleaning and must therefore be sealed properly.Bathroom sealant is manufactured from silicone, which provides a strong, permanent rubber seal. Sealant is a straightforward product to use, whether you are experienced in DIY or not. Modern varieties of bathroom sealant are supplied in many different colours - so can be easily matched to any decorating scheme - though white or clear products remain the most common and most popular.Normally supplied in tubes of 300 - 500ml Bathroom Sealant will come with a simple application nozzle, and the product is best used in conjunction with a decorator's gun. Once fitted to the gun, the nozzle should be cut at a diagonal angle. You will not need a large hole in the nozzle to produce an adequate bead of the material - it is better to cut a small hole at first which can be enlarged if required.