Does anyone know if Wickes Decorators Caulk (Product Code: 190127) is water soluble or latex?

You can buy decorators caulk in any DIY store. It is sometimes called Painters Mate an can be used for filling in the cracks in your walls unless they are very wide or deep then you need to fill them with a filler such as Polycell first. Caulk should be wiped down afterwards with a damp cloth to ensure a smooth finish that can then be painted over. It is not water soluble as you will find if you get it onto your fingers as it is the devil to remove!