MENU

TUFNOL Grade 10G/50

Silicone Glass Fabric laminate

Glass fibre/silicone resin laminated plastic

(SRBGF - Synthetic Resin Bonded Glass Fabric)


For heat resistance and high frequency insulation.

TUFNOL Grade 10G/50 is a laminated plastics material made from woven glass fabric, bonded with silicone resin.

It is a rigid sheet material with good resistance to high temperatures and very good electrical insulation properties, especially in applications involving very high frequencies.  Note, however, that silicone bonded laminates have mechanical strength properties somewhat lower than some other glass fabric laminates.

 

Temperature resistance

TUFNOL Grade 10G/50 is suitable for use at temperatures up to 200ºC and will also withstand short term exposure to 240ºC.  It has very good retention of properties (thermal endurance) at temperatures up to 200ºC and can be an economical choice in comparison with other plastics materials with similar heat resistance.  It also has good flammability performance.

 

High Frequency Performance

 

The silicone resin used to bond the laminate gives TUFNOL Grade 10G/50 first class dielectric properties, including high insulation resistance and low loss tangent and permittivity. This ensures good performance in electrical applications at high frequencies.

 

What is Grade 10G/50 used for?

This grade is used for a wide variety of electrical and mechanical applications where its particular combination of properties makes it an ideal choice.  It is equally at home as insulation in Class H electrical equipment, or used on a conveyor carrying components through a hot oven process.

 

The low loss characteristics are particularly important for engineers and designers working with many types of high frequency electrical devices, such as high-powered radar and military communications equipment.

 

Typical non-military applications include microwave and RF equipment, such as are used in the food processing industry and in medical equipment using microwaves.

 

TYPES AVAILABLE

 

Sheets

 

Rods

 

Tubes

 

Other sections

Natural colour

Yes

No

No

No

Minimum order quantities may apply.



SPECIFICATIONS for TUFNOL Grade 10G/50


BRITISH STANDARDS

Current Standards

Recent Standards

(now obsolete)

Sheet

 

BS EN 60893-3-6 Type SI GC 202

BS3953 Type SI-5

NEMA

 

 

Sheet

Type G7

Subject to special enquiry

 



PHYSICAL PROPERTIES

TUFNOL Grade 10G/50 Sheet

 

PROPERTY

TYPICAL RESULT

UNITS

Cross breaking strength

140

MPa

Impact strength, notched, Charpy

70

kJ/m2

Cross breaking strength at 150 0C (after l hour at 150 0C)

80

MPa

Water Absorption

 

 

- 1.6mm thick.

4

mg

- 3mm thick.

6

mg

- 6mm thick.

9

mg

Electric strength, flatwise in oil at 90ºC

 

 

- 1.6mm thick.

14

MV/m

- 3mm thick.

11

MV/m

Electric strength, edgewise in oil at 90ºC

65

kV

Insulation resistance after immersion in water

1 x 1011

ohms

Loss tangent at 1 MHz

0.002

-

Permittivity at 1 MHz

4.2

-

Flammability category

FV0

 

Comparative tracking index

800

 

Relative density

1.90

-

Maximum working temperature**

 

 

- continuous

200

ºC

- intermittent

240

ºC

Thermal classification (BS2757)

Class 200

-

Test methods as BS EN 60893-2, where applicable.

 

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

SECTORS

Tufnol Railway

Railway

Tufnol Railway

Marine

Tufnol Railway

Construction

Tufnol Railway

Electrical

Tufnol Railway

Aerospace

Tufnol Railway

Off shore

Tufnol Railway

General

Tufnol Railway

Space