Disclosed are a sealing material comprises a powdered material into which a rubber base sealing material with a viscosity of 20 to 200 Pa·s/100° C. is pulverized at a temperature lower than, or equal to, a brittle temperature of the rubber base sealing material, and a method of applying the sealing material, which comprising applying the powdered material to a surface, intended to be coated with the powered material, by a spay coating process.