Tuf-Glas™Fiber Glass Insulation is a lightweight, highly resilient, blanket-type insulation made from borosilicate glass fibers bonded with a thermosetting resin. Tuf-Glas is designed to provide a rotary product with good core strength. Tuf-Glas can be used in a variety of applications that require good thermal and acoustical efficiency in a minimal space.


The glass fibers in Tuf-Glas insulation are noncombustible and non-hygroscopic. Tuf-Glas does not support fungi or vermin, and is unaffected by oil, grease, and most acids. Tuf-Glas meets typical industry standard for tensile and core strength, which makes the product resistant to damage during lamination and installation.


Because of its resiliency and flexibility, Tuf-Glas blankets resist settling, breakdown, sagging from vibration, and damage from impact. Tuf-Glas insulation conforms easily around corners and curved surfaces and is readily cut in die presses or with a knife.


HVAC Equipment Liners

Temperature Limit

350°F (177°C)(unfaced)

Available Forms

Available in different thickness and densities.


  • HVAC Equipment
  • Fan Coils
  • Furnaces
  • Air Conditioners
  • Appliances
  • Other Equipment


  • Good Thermal Efficiency
  • Good Acoustical Performance
  • Good Tensile Strength
  • Good Core Strength
  • Uniform Density Distribution
  • Excellent dimensional Uniformity
  • Ease of Handling

View the complete Tuf-Glas™ Data Sheet

View the Tuf-Glas™ Safety Data Sheet

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