Pressure-sensitive pad are coated with pressure-sensitive adhesive of PS foam gasket sealing without any equipment, up only on the cover and tighten pressure at room temperature and stick on the container mouth sealing effect. It has simple process, low price, easy to use and good sealing performance. Its non-toxic, tasteless is suitable for the characteristics of glass bottles, metal, plastic bottles, medicine, food and cosmetics, inside the bottle dry food or medicine packaging for solid domain. May according to the customer designated trademark printing on the back of gasket, pattern, etc.