(SRBF - Synthetic resin Bonded Fabric) 

For electromechanical applications. TUFNOL Grade 2F/14 is a cotton fabric laminate with enhanced electrical properties, specially developed to meet the requirements of the relevant British Standard specification.

What is Grade 2F/14 used for? It is used for electro-mechanical applications where the benefits of mechanical toughness and wear resistance are combined with a need for good insulation resistance.  Typical uses include slot wedges, stator packings, coil formers and operating arms.

TYPES AVAILABLE	Sheets	Rods	Tubes	Other sections
Natural colour	Yes	No	No	No

   ·          Minimum order quantities may apply.


 Click here for TUFNOL Grade 2F/14 STANDARD SIZES 

SPECIFICATIONS for TUFNOL Grade 2F/14

BRITISH STANDARDS	Current Standards	Recent Standards (now obsolete)
Sheet	BS EN 60893-3-4 Type PF CC 202	BS 2572 Types F4 & F5

PHYSICAL PROPERTIES

TUFNOL Grade 2F/14 Sheet

PROPERTY	TYPICAL RESULT	UNITS
Cross breaking strength	115	MPa
Impact strength, notched, Charpy	7.0	kJ/m2
Compressive strength, flatwise	290	MPa
Compressive strength, edgewise	215	MPa
Resistance to flatwise compression	1.4	%
Shear strength, flatwise	80	MPa
Water Absorption
- 1.6mm thk.	50	mg
- 3mm thk.	60	mg
- 6mm thk.	80	mg
- 12mm thk.	90	mg
Electric strength, flatwise in oil at 90ºC
- 1.6mm thk.	9.0	MV/m
- 3mm thk.	7.5	MV/m
- 6mm thk.	6.0	MV/m
Electric strength, edgewise in oil at 90ºC	35	kV
Insulation resistance after immersion in water	5x1010	ohms
Loss tangent at 1 MHz	0.047	-
Permittivity at 1 MHz	4.8	-
Relative density	1.33	-
Maximum working temperature**
- continuous	120	ºC
- intermittent	130	ºC
Thermal classification	Class E	-

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 Ltd.

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A full machining service is available from Tufnol 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.