Alumina-zirconia-silica (AZS) sealing cement


Alumina-zirconia-silica (AZS) cement to seal and joint alumina-zirconia-silica (AZS) surfaces.

Typical application

Easy-to-use cement with good malleability at low temperatures. Ideal solution for jointing during construction and repair operations : jointing of alumina-zirconia-silica (AZS) skewback and alumina-zirconia-silica (AZS) blocks, jointing of alumina-zirconia-silica (AZS) crowns and gable walls, etc.

ERPLAST® 20 CEMENT's good corrosion resistance. Grain size suitable to fill wide joints.

Due to its high alumina content it cannot be used in contact with silica. For application with contact with silic check out the ERPLAST® Z PATCH.

Chemical and physical properties

Typical chemical composition


Typical crystallographic analysis

  • corundum
  • zirconia

Physical characteristics

Description International standards British standards
Maximum diameter 2mm 10Mesh
Typical bulk density 3.1g/cm3 194pcf

Instructions of use

Chemical setting with 0.5 to 5% drinkable water by weight.

Packaging and storage

  • 50kg drum
  • 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


Alumina mortar for sealing and jointing

High alumina heat-setting cement to joint and seal Alumina and alumina-zirconia-silica (AZS) refractories.

Fused cast

Regular cast electrofused Alumina-Zirconia-Silica (AZS) with 36% zirconia and a low silicate phase (14%)

Low exudation and high creep resistance.
Good resistance to alkali vapour and carry over.

Fused cast

Regular cast, electrofused Alumina-Zirconia-Silica (AZS) with 32% zirconia

Good castability Alumina-Zirconia-Silica (AZS) enabling complex and varied shapes and sizes.