Microlite® Fiber Glass Equipment Insulation is a lightweight and highly resilient blanket-type thermal and acoustical insulation made of flame-attenuated glass fibers bonded with a thermosetting resin.


Microlite® is used in a variety of appliance, equipment, and office furniture applications which require high thermal and acoustical efficiency in a minimal space.


The borosilicate glass fibers that make up Microlite insulation are noncombustible and non-hygroscopic. Microlite does not support fungi or vermin. Microlite is unaffected by oil, grease, and most acids. Microlite equipment insulation forms easily around corners and curved surfaces and is readily cut in die-cut presses or with a knife.


Flexible Blanket

Temperature Limit

350°F (177°C)

Available Forms

Microlite® is available in a variety of densities, thicknesses, widths, and roll lengths. Microlite equipment insulation can be supplied, either amber of black.


  • Acoustical Panels/Partitions
  • HVAC Equipment
  • Pipe Wrap Kits
  • Appliances
  • Other


  • High Thermal Efficiency
  • High Acoustical Performance
  • High Tensile Strength
  • Uniform Density Distribution
  • Excellent Dimensional Uniformity
  • Ease of handling

View the complete Microlite® Data Sheet

View the Microlite® Safety Data Sheet

All information provided is © Johns Manville.