Coreless Induction Furnace Linings

Product Benefits

  • Capital is at the forefront of technologically innovative induction furnace lining solutions
  • We are a leading company in terms of the quality and performance of our products
  • Our superior and comprehensive product ranges are backed by effective service and technical support
  • Capital has a process of continual development to advance the performance of existing products and to introduce new ones

Product Range

Dry Rammed Lining

Capital Refractories offer a full range of coreless induction furnace linings, topping and patching products for a wide range of steels and high temperature alloys.

Topping and Spout Material

A range of chemically bonded high strength materials compatible with Capital’s dry linings.

Coil Screed

High grade fine hydraulic cements.

Slip Plane Material (Micanite/Mica)

The slip plane is positioned against the coil screed to provide a smooth surface. This is essential for uninhibited reversible movement of the refractory lining caused by its thermal expansion and contraction. The mica also offers a degree of protection against metal penetration.

Mica Mesh
A sandwich of metal mesh between two layers of mica is available which is used in systems that give early warning of metal penetration through a lining.

Repair Material

Hydraulically bonded multi-purpose castable.

Dry Rammed Lining

Product Name Product Description Bond Max Service Temperature (°C)
CRL65 Mullite forming material with excellent resistance to chemical, thermal and mechanical damage. Ceramic 1650* 1700†
CRL 75 Mullite forming material with improved resistance to chemical, thermal and mechanical damage. Ceramic 1650* 1700†
CRL 75X Mullite forming material with improved resistance to chemical, thermal and mechanical damage particularly medium frequency furnaces. Ceramic 1650* 1700†
CRL 76N Mullite forming material with improved resistance to chemical, thermal and mechanical damage. This mix is free of respirable silica. Ceramic 1650* 1700†
CRL 80B Mullite forming material with improved resistance to chemical, thermal and mechanical damage for aggressive ductile iron melting. Ceramic 1650* 1700†
Silica 60 grade Acid lining based on natural quartz with a 0.6% B2O3 addition. Ceramic 1650
Silica 80 grade Acid lining based on natural quartz with a 0.8% B2O3 chemical binder. Ceramic 1620

Topping and Spout Material

Product Name Product Description Max. Grain Size (mm) Bond Max Service Temperature (°C)
Capram 60 Phosphate bonded high alumina zircon enriched plastic and repair mix. 5 Chemical 1650
Capram 85 Silicate bonded aluminosilicate topping mix. 5 Ceramic 1600

Coil Screed (Grout)

Product Name Product Description Max. Grain Size (mm) Bond Max Service Temperature (°C)
Silkote 90 Hydraulically bonded, high alumina induction furnace coil screed. 1 Hydraulic 1700
Capscreed Hydraulically bonded, high alumina induction furnace coil screed. 1 Hydraulic 1680
Capscreed.96C A high fluidity, self-flowing, high alumina castable 1,3 Hydraulic 1800
Capgrout G Hydraulically bonded, high alumina, induction furnace coil grout (mudding/screed) material. 1 Hydraulic 1700

Slip Plane Material (Micanite/Mica):

Product Name Length (m) Width (m) Thickness (mm) Form
Mica Sheet 1.2 /1.8 / 2.2 1.0 0.4 Sheet
Mica Roll 12.5 1.0 0.3 Roll
Mica Glass 20.0 1.0 0.4 Roll
Combi-Roll 12.5 1.0 2.0 Roll
Mica Foil 20.0 1.0 0.4 Roll
Mica Weave 20.0 1.0 0.28 Roll

Repair Material

Product Name Product Description Bond Max. Service Temperature (°C)
D10 Plaster Aluminosilicate patching plaster. Chemical 1700
D10F A finer version of D10 Plaster. Chemical 1700
D11 High grade high alumina patching material. Chemical 1800
Capram 90F High grade high alumina patching and topping material. Chemical 1800
Capram 90LP High Performance chemically bonded, high alumina, plastic/plaster Chemical 1800

*           Normal maximum operating temperature
†          Short term maximum operating temperature

Brochure Request

Thank you

Your brochure is ready for download.

Download brochure