TUFNOL Rolled Laminated Glass Fabric Tubes 

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:

     - Grade RL G/1 is a strong, rigid material, with good moisture resistance and excellent electrical insulation properties.  It has good dimensional stability and is resistant to a wide range of working environments.  It may be used in Class B (130ºC) electrical applications.

     - Grade RL G/2 is similar to Grade RL G/1 and meets additional standards for flammability properties.  It is a strong, rigid material, with good moisture resistance and excellent electrical properties.  It has good dimensional stability and is resistant to a wide range of working environments.  It is used in Class B (130ºC) electrical applications.

     - Grade RL G/3 is made with an epoxy resin which is specially formulated to give improved performance at raised temperatures.  It is a strong, rigid material, with good moisture resistance and excellent electrical properties.  It has good dimensional stability and is resistant to a wide range of working environments.  It is used in Class F (155ºC) applications.

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.

     - RL G/1 is the main general purpose grade and the other two grades may be selected where their particular additional properties are required.  Grade RL G/1 is used for a wide variety of applications where a strong, high performance insulating tube material is required.  Typical uses include mechanical components or electrical insulation for machines operating at slightly raised temperatures and in electronic equipment or for insulation where high strength and very long life is required.

     - RL G/2 is normally selected where the sme type of tube is required, but with additional fire properties.  Typical applications include electrical insulation for machines operating at slightly raised temperatures and in electronic equipment.

     - RL G/3 is normally selected where a similar material is required but with the extra temperature capability of a Class F material.  Typical applications include electrical insulation for machines operating at raised temperatures and in a wide range of electronic equipment.

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.

Click here for TUFNOL RL Epoxy Glass Fabric Tubes STANDARD SIZES

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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A full machining service is available from Tufnol Composites Ltd for this and many other engineering plastics and composites.

Tufnol Composites Ltd, Wellhead Lane, Perry Barr, Birmingham B42 2TB, United Kingdom.

Quality Registration BS EN ISO 9001:2000, BS EN 9100:2003 and AS 9100 Reg. No. FM 90942

The information given here is believed to be correct, but completeness and accuracy are not guaranteed. The user shall be fully responsible for determining the suitability of products for the intended use.