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[ Application ]
water / damp-proofing, metal / concrete protective coating, roofing, Insulator,
pipe coating, etc

  This is produced by blowing air through straight run asphalt at temperatures 
  usually in the range of 200 to 250 °C and modified of high softening point and 
  law penetration number by oxidation polymerization blown asphalt specified to
  five grade in accordance with a degree high(low) penetration number.

  Blown asphalt has vast of elasticity, strong of resistance at this time being 
  shocked, low Temperature Susceptibility, etc.