TUFNOL materials for engineering

An intermediate commercial paper grade This grade is intermediate in its electrical performance between the high electrical specification of Kite Brand TUFNOL and the low cost Grade 1P/13.  It is produced to meet British Standard BS EN 60893-3-4 Type PF CP 203 and its water absorption and mechanical performance are also in the range between these two other grades. It is readily machined into components and can be hot punched, to produce items in thicknesses up to 3.2mm

What is Grade 1P/21 used for? This material is usually selected where electrical performance slightly above that of a basic commercial paper grade is required, with a minimum effect on cost.  It is used for a wide range of electrical items, such as terminal boards, mounting panels and tag strips.

TYPES AVAILABLE	Sheets
Natural colour Grade 1P/21	Yes

Minimum order quantities may apply.

Click here for TUFNOL Grade 1P/21 Standard Sizes

SPECIFICATIONS for TUFNOL Grade 1P/21

BRITISH STANDARDS	Current Standards	Recent Standards (now obsolete)
Sheet	BS EN 60893-3-4 Type PF CP 203	BS 2572 Type P2 & P2/1

Standard quality testing is to British Standards.

PHYSICAL PROPERTIES

TUFNOL Grade 1P/21 Sheet

PROPERTY	TYPICAL RESULT	UNITS
Cross breaking strength	175	MPa
Resistance to flatwise compression	1.3	%
Shear strength, flatwise	100	MPa
Water Absorption
- 1.6mm thick.	65	mg
- 3mm thick.	80	mg
- 6mm thick.	90	mg
- 12mm thick.	110	mg
Electric strength, flatwise in oil at 90ºC
- 1.6mm thick.	13	MV/m
- 3mm thick.	11	MV/m
- 6mm thick.	7.5	MV/m
- 12 mm thick.	5.4
Electric strength, edgewise in oil at 90ºC	40	kV
Insulation resistance after immersion in water	1x109	ohms
Relative density	1.36	-
Maximum working temperature**
- continuous	90	ºC
- intermittent	120	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 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.