CFI Insulation Bricks – Cold Face Insulation for Energy Efficiency

Overview

Mitticool Refractories is a trusted manufacturer and supplier of CFI (Cold Face Insulation) Bricks, designed to deliver exceptional thermal insulation, lightweight construction, and long-lasting performance in high-temperature industrial applications.
 These bricks are engineered for backup insulation layers in furnaces, kilns, and boilers — helping reduce heat loss and improve overall energy efficiency.

Our CFI Insulation Bricks are the preferred choice for industries seeking cost-effective, reliable, and high-quality refractory insulation solutions.

What Are CFI Insulation Bricks ?

CFI (Cold Face Insulation) Bricks are lightweight refractory insulation bricks used primarily in the outer (cold face) zones of industrial furnaces.
 They are designed to retain heat within the furnace lining while keeping the exterior shell cool, minimizing energy loss and protecting the structural components from excessive heat exposure.

Key Features

  • Low Thermal Conductivity: Excellent heat insulation to prevent heat loss.

  • Lightweight & Easy to Install: Reduces overall furnace weight and simplifies construction.

  • High Porosity: Enhances insulation properties while maintaining sufficient strength.

  • Dimensional Accuracy: Ensures tight joints and easy alignment during installation.

  • Good Thermal Shock Resistance: Performs reliably under fluctuating temperature conditions.

  • Economical Solution: Ideal for cost-sensitive insulation applications.

Technical Specifications

PropertyTypical Range
Bulk Density0.6 – 0.8 g/cm³
Alumina Content (Al₂O₃)30% – 35%
Cold Crushing Strength20 – 40 kg/cm²
Max. Service TemperatureUp to 1100°C
Thermal Conductivity (at 800°C)0.25 – 0.30 W/mK
ColorOff-White / Light Yellow

Applications of CFI Insulation Bricks

CFI Bricks are ideal for cold face insulation and backup layers in various thermal units, where temperature exposure is moderate but heat retention is essential.

Typical Applications:

  • Backup insulation in furnaces, kilns, and ovens

  • Outer layer of refractory linings behind dense bricks

  • Boilers and heat-treatment furnaces

  • Chimneys, flues, and hot air ducts

  • Power plants and dryers

  • Non-ferrous metal melting units

Benefits of Using Mitticool CFI Insulation Bricks

  • Reduces heat loss, improving energy efficiency

  • Protects furnace shell from overheating

  • Lightweight structure lowers installation costs

  • Excellent durability for long service life

  • Customizable sizes and shapes for easy integration

Why Choose Mitticool Refractories ?

  • Trusted Manufacturer of high-performance refractory and insulation materials

  • ISO-certified quality with strict raw material control

  • Tailored solutions based on furnace design and temperature zones

  • Pan-India supply network ensuring timely delivery

  • Expert technical support for installation and maintenance guidance

Packaging & Supply

  • Available in standard sizes (230 x 115 x 75 mm) and custom shapes on request

  • Supplied in HDPE bags or wooden pallets for safe handling

  • Consistent quality and uniformity across every batch

Industries Served

  • Iron & Steel Plants

  • Cement & Lime Kilns

  • Power Generation Units

  • Glass & Ceramic Industries

  • Petrochemical Plants

  • Foundries & Heat Treatment Units