Fiberglass Resin Coated Heat Sleeve

Insultherm Fiberglass Heat Sleeves is an extremely high temperature resistant sleeve commonly used as thermal protection for hoses, wires and cables that are subjected to continuous and extremely high temperature environments, such as engine manifolds and exhaust systems. Insultherm Fiberglass Heat Sleeves will not burn, melt or become brittle.

Insultherm Fiberglass Heat Sleeves is braided from fiberglass yarns and saturated with high temperature resins in Black or Silver coating. The Insultherm Fiberglass Heat sleeving is tough and durable, maintaining its tight structure under extreme vibration, abrasion, mechanical stress and temperature variations. It cuts cleanly with scissors and installs easily over a variety of applications to either deflect or retain heat in environments up to 650°C /1,200°F.

Insultherm Fiberglass Heat Sleeves is available in Black or Silver

Insultherm Fiberglass Heat Sleeves are available in a 8 different diameters and 5 different roll lengths.


Nominal Size


Maximum Expansion



Wall Thickness

6.4mm 9.5mm 0.79mm
9.5mm 15.9mm 1.09mm
12.7mm 19.1mm 1.17mm
15.9mm 22.2mm 1.17mm
19.1mm 28.6mm 1.17mm
22.2mm 31.8mm 1.17mm
25.4mm 41.3mm 1.45mm
38.1mm 66.7mm 1.55mm