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TUFNOL Rolled Laminated Glass Fabric Tubes 

Epoxy Glass Fabric laminate

Glass fibre/epoxide resin laminated plastic tubes

(SRBGF - Synthetic Resin Bonded Glass Fabric)

 

Strong, rigid laminated tubes

TUFNOL Rolled Laminated epoxy glass fabric tubes have good mechanical strength, low water absorption and are resistant to weathering and to chemical attack by mild acids and alkalis. They are strong and rigid, with good bursting strength and excellent electrical insulation properties.

Three grades are available:

What are TUFNOL RL Epoxy Glass Fabric tubes used for?

These materials are used for many applications where strong, rigid tubes are required for the manufacture of cylindrical components for mechanical or electrical insulation uses.


TYPES AVAILABLE

 

Tubes

 

Grade RL G/1     – natural colour

Yes

Grade RL G/2     – natural colour

Yes

Grade RL G/3     – natural colour

Yes

Minimum order quantities may apply.



SPECIFICATIONS for TUFNOL RL Cotton Fabric Tubes


BRITISH STANDARDS

Current Standards

Recent Standards (now obsolete)

Grade RL G/1 tube

 

BS EN 61212-3-1 Type EP GC 21

BS 6128 Part 8 Type EP GC 81

Grade RL G/2 tube

BS EN 61212-3-1 Type EP GC 21 plus added flammability properties

 

BS 6128 Part 8 Type EP GC 81 (plus added flammability properties)

Grade RL G/3 tube

BS EN 61212-3-1 Type EP GC 22

 

BS 6128 Part 8 Type EP GC 81


PHYSICAL PROPERTIES


TUFNOL RL Epoxy Glass Fabric Tubes

 

PROPERTY

Grade

RL G/1

TYPICAL RESULT

Grade

RL G/2

TYPICAL RESULT*

Grade

RL G/3

TYPICAL RESULT*

UNITS

Axial compressive strength

200

220

220

MPa

Cohesion between layers

500

500

500

MPa

Water absorption

0.22

0.30

0.30

mg/cm2

Insulation resistance after immersion in water

1 x1010

1x1010

1x1011

ohms

Loss tangent at 1 MHz

0.017

0.016

0.016

-

Permittivity at 1MHz

4.6

4.7

4.7

-

Axial electric strength in oil at 90ºC

70

-

-

kV

Electric strength normal to axis

  in oil at 90ºC

 

 

 

 

- 1.6mm wall

12

-

-

MV/m

- 3.0mm wall

9

-

-

MV/m

Flammability category

-

FV0

 

-

Relative density

1.80

1.80

1.80

-

Maximum working temperature**

 

 

 

 

- continuous

120

120

140

ºC

- intermittent

130

130

155

ºC

Thermal classification

Class E

Class E

Class F

-

Test methods as BS EN 61212-2, where applicable.

*Note:  Data on this grade is provisional and is based on a small number of tests.

 

**Users of highly stressed components at temperatures approaching the maximum are recommended to seek further advice from Tufnol Composites Ltd.

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