Alumina mortar for bottom solutions


Alumina mortar ensuring flatness between ERPAL CAST and BPAL sintered alumina.

Typical application

Easy-to-use mortar to be applied on ERPAL CAST concrete safety layer before BPAL feeder installation.

ERPAL MORTAR also used for jointing the spout with the feeder as well as sealing the spout burners.

Chemical and physical properties

Typical chemical composition


Typical crystallographic analysis

  • corundum

Physical characteristics

Description International standards British standards
Maximum diameter 0.5mm 35Mesh
Typical bulk density 2.5g/cm3 156pcf

Instructions of use

Organic then ceramic setting with 11 to 12% drinkable water by weight.

Packaging and storage

  • 25kg bag
  • Must be properly stored up to expiry date in undamaged original sealed packaging, in dry conditions at temperatures between +5°C and +40°C

Related products


Sintered high-alumina 93%

High alumina content sintered material. Very good glass contact properties with the low glass defect potential.
Available in complex and large shapes.

Fused cast

Regular cast, electrofused 95% alumina (alpha-beta alumina)

Excellent glass contact properties with extremely low defect potential.
High resistant to alkali vapor and creep for superstructure application.