G11 Epoxy Insulation Sleeve

G-11 is a glass epoxy material with some qualities similar to G-10. Its most noticeable feature is its capacity to resist extremely high temperatures.

Welcome to Learning about G11 Epoxy Insulation Sleeves

The G11 epoxy insulation sleeve is a high-performance fibreglass epoxy tube designed for heavy-duty electrical and thermal isolation. It is often found in high-voltage environments, power generation equipment, and flange isolation kits; it prevents electrical arcing, galvanic corrosion, and heat transfer.

As a premium grade under NEMA standards, EPGC22 G11 is rated as Class F (155°C) and Class H (180°C).

Advantages

The G11 epoxy insulation sleeve offers distinct physical, electrical, and thermal advantages over traditional plastics, ceramics, and other NEMA-grade laminates (like G10 or FR4). It has excellent heat resistance, continuing high-temperature resistance at 150°C, and remarkable chemical resistance and radiation resistance. It has excellent fire retardance and is rated UL 94 V-0.

Applications

Various industries, including bolt protection, chemicals, the military, medicine, and electronics, utilise the G11 epoxy insulation sleeve. It can give solid and dependable material solutions for these applications.

Typical Properties of Filament G11

PropertiesTest MethodsUnitValue
DensityASTM D792g/cm³2
Water Absorption, 24 hrsASTM D570%0.2
Tensile StrengthASTM D638psi37000
Compressive StrengthASTM D695psi63000
Flexural ModulusASTM D790ksi4200
HardnessASTM D785Rockwell112
Coefficient of Linear Thermal ExpansionASTM D696x 10-5 in./in./°F1.1
Max Operating Temp°C150