NAME : G10  Glass-Cloth Reinforced Epoxy tube/FR4 tube /INSULATION tube


The most versatile all-around laminate grades are continuous glass woven fabric impregnated with an epoxy resin binder. Epoxy resins are among the most versatile and widely used plastics in the electronics field, primarily because water absorption is virtually nil, rendering it an outstanding insulator

G10/FR4  tube  has extremely high mechanical strength,  good dielectric loss properties,

Size:  please ask for us.

COLOUR :GREEN /yellow /light green


Extremely high mechanical strength,  good dielectric loss properties,

good electric strength properties,  both wet and dry.

Also can used as insulating part in machinery and electrical instruments, it also can be used as pressure ,usually used in the transformer generator motor and others

Size : according to customer design

Longth :500mm or 1000mm also can cut according to customer requirements


Epoxy laminated glass-fiber specification


Heat Resistance B Standard Q/DJ10-731-2000
Density ≥1.65g/cm3
Hydroscopicity < 0.60 MPA

Volume Resistively

Under normal ≥1.0×1010  Ω.cm
After immersion 24h ≥1.0×108Ω.cm

Insulation Resistance

Under normal ≥1.0×1010Ω
After immersion 24h ≥1.0×107Ω

Proof Voltage at perpendicular to lamination

(transformer oil at 90±

degree  for 5 min)









Heat stability (150 degree ,/24 H ) No crack or plump up