Refrax® ProCast - Castable

Silicon Carbide Castable

Saint-Gobain Performance Ceramics & Refractories offers various qualities of silicon carbide based castables. These specialist materials typically include 60%-80% SiC content, making them ideal for use in the challenging environments associated with waste to energy applications.

Saint-Gobain Performance Ceramics & Refractories’ team of experts is on hand to discuss any requirements around specific levels of SiC content.

The Refrax® ProCast range is designed to complement a range of available tile and brick systems, offering full lining capability. Refrax® ProCast products can be used with tiles, though it is equally effective on its own.

Features and Benefits

  • Monolithic, low cement dense, and castable
  • Robust silicon carbide base
  • Easy mixing
  • Low water content
  • High workability
  • Time saving and easy to use
  • Long-lasting and reliable
  • Flexible Range of customization options
  • Hydraulic bond and set
Chemical Analysis

ProCast 80

Property Value Method
Typical Chemical Analysis
SiC 85%
Al2O3 12%


CaO 1.6%
Others <0%

DIN EN ISO 21068
DIN 13925
DIN 51001

Loss on Ignition at 700ºC (direct)


BS 812 -2 : 1995

Particle Sizing


DIN EN 933-1
DIN EN 933-2
Cold Crushing Strength
after drying at 110ºC
after 3hrs MST
20 MPa
60 MPa
BS EN 993-5:2000
Maximum Use Temperature 1450ºC


Water Addition


Cast Density 2,500 kg m-3 BS EN 993-1:1995
Permanent Linear Change <0.5% BS EN 993-10:1998
Thermal Conductivity at 800ºC N/A W.m-1 K-1 BS 1902 - 5.5: 1991
Product Uses
  • Inlet Roof
  • Burner Outlet
  • Super Heater
  • Header / Collector
  • Repairs / Patching
  • Product Type: Monolithic, Low Cement Dense, Castable
  • Principal raw materials: Silicon Carbide
  • Type of set: Hydraulic Set Nature of Bond; Hydraulic
  • Packaging: supplied dry in 25 kg container
  • Shelf life: 6 months