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Kast-O-Lite 30 LI Plus Castable - Bag

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Rated at 3000 °F (beyond steel welding heat). A lightweight, high alumina insulating castable with a hydraulic set.  It can be used on its own, or as a layer over top of wool (best to toughen up the wool first with our freeze-proof rigidizer to prevent its compression during application), etc. 


  • KastOLite 30 LI + does not have the density and burner durability of KS-4V Plus Dense Castable, but it is lighter and offers superior insulation.
  • This keeps your forge walls cooler on the outside, and warmer inside.

Typical Applications:

  • aluminum furnace stacks
  • aluminum holding furnace doors
  • furnace discharge doors
  • air heaters
  • hot face or backup linings
  • petrochemical heaters

Kast O Lite 30 Li Plus is available in these sizes:

  • 1 Gallon Pai; 
  • 2 Gallon Pail   
  • 55 lb Bag


Once cured, Kast-O-Lite can be coated with ITC 100 HT to optimize forge efficiency, or with ITC-296A for improved flux resistance.


Do you have more than 1 bag of Castable Refractory in your cart?

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