Unibond silicone sealant re new will make your old sealant look like new easy to apply there is no need to remove the existing sealant simply cover over it has triple protect mould resistance thanks to its perfect adhesion it will cover cracks and the extra white colour ensures the old discoloured sealant wont show through its special formula covers and stops existing mould and prevents future growth it is suitable for both vertical horizontal joints in any area including kitchens bathroom