G7 Silicone Glass Laminate Tube
G7 silicone glass laminate tube is a rigid electrical-insulation tube made from glass reinforcement with a silicone-resin binder. It is considered for designs that specify G7-type laminate construction and require insulation performance at elevated operating temperatures.
Engineering selection
| Selection point | Confirm in the RFQ |
|---|---|
| Material grade | G7 designation, governing standard and required material certificate |
| Dimensions | ID, OD, length, wall thickness, roundness and tolerances |
| Electrical duty | Voltage, dielectric test method, creepage requirements and service environment |
| Thermal duty | Continuous and peak temperature, exposure time and cooling conditions |
| Machining | Cut lengths, holes, slots, tapers and finished-edge requirements |
Typical applications
- High-temperature electrical insulating sleeves
- Fuse, switchgear and transformer components
- Machined insulating parts where a G7 silicone-glass grade is specified
RFQ checklist
Send the drawing or sample, required G7 specification, ID, OD, length, tolerances, machining details, operating voltage, temperature profile, quantity and inspection documents. We will confirm material availability and manufacturability before production.
For different resin systems, compare our G5/G9 glass melamine tube and filament wound tube.
Frequently asked questions
What makes G7 silicone laminate tube different from standard laminates?
G7 uses a silicone resin with glass cloth, giving higher heat resistance and better retention of electrical properties at elevated temperature than phenolic or melamine laminates.
Where is G7 silicone laminate tube typically specified?
It is used in high-temperature bushings, transformer structures, heating equipment and other parts that must hold insulation performance under heat and humidity.
Request a quote
Send your drawing, voltage class, dimensions and quantity. Engineering review covers electrical, arc, moisture and mechanical requirements before production.