Diorca | Secondary Seals
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Secondary Seals


For above ground storage tank floating roof:
  • SS single wiper
  • Low profile Secondary Seal
  • SS double wiper
  • Galvanized steel single and double wiper 


Secondary Wiper Seal Advanced Features:
  • Wide range of metallic and non-metallic materials available for various service conditions
  • In- Service installation
  • No metallic fasteners, such as bolts or pop-rivets, in vapor space to cause sparking
  • Accommodates wide range of rim space variations
  • Seal will return to tank without special attention, if tank is overfilled


Low Profile Secondary Seal Features:
  • Increases storage tank capacity by increasing the maximum roof height
  • Ease of installation
  • Long service life
  • Built in stainless steel
  • Ability to shed rainwater
  • Vapor barrier fabric exposed
  • Water tight—Water shedding ability greatly reduces the amount of rainwater entering the tank and product.
  • Compatible with all products that are stored in tanks