TUFNOL Grade 2P/45

TUFNOL materials for engineering

TUFNOL Grade 2P/45 

Epoxy Paper laminate

Paper/epoxide resin laminated plastic

(SRBP - Synthetic Resin Bonded Paper) 


First class electrical insulation

TUFNOL Grade 2P/45 is made from a high quality bleached Kraft paper, bonded with a specially modified epoxy resin.  It gives first class electrical insulation properties, including high electric strength, very high insulation resistance and exceptionally good resistance to electrical tracking.  It is suitable for use up to 130ºC and can be readily machined into finished components.  Items can also be hot punched from sheets up to 3.2mm (1/8 inches) thick.

 

What is TUFNOL Grade 2P/45 used for?

This grade is most commonly selected where exceptionally good electrical performance is required from a material with first class machining characteristics.  Mounting plates, coil supports, high voltage insulation blocks, spacers and terminal supports, these are typical of the applications for which TUFNOL Grade 2P/45 is used.

 

TYPES AVAILABLE

 

Sheets

 

Rods

 

Tubes

 

Other sections

Tufnol Grade 2P/45 – natural colour only

 

Yes

No

 

No

No

Minimum order quantities may apply.

SPECIFICATIONS for TUFNOL Grade 2P/45

 

TUFNOL Grade 2P/45 is a unique material developed by Tufnol and there are no British Standards or other published national specifications applicable to this type of material. 

It is produced to the in-house quality specifications of Tufnol Composites Ltd.

Click here for TUFNOL Grade 2P/45 STANDARD SIZES

PHYSICAL PROPERTIES

TUFNOL Grade 2P/45 Sheet

PROPERTY

TYPICAL RESULT

UNITS

Cross breaking strength

140

MPa

Impact strength, notched, Charpy

2.8

kJ/m2

Compressive strength, flatwise

280

MPa

Compressive strength, edgewise

200

MPa

Resistance to flatwise compression

1.5

%

Shear strength, flatwise

95

MPa

Water Absorption

 

 

- 3mm thk.

32

mg

- 6mm thk.

37

mg

- 12mm thk.

42

mg

Electric strength, flatwise in oil at 90ºC

 

 

- 3mm thk.

19

MV/m

- 6mm thk.

15

MV/m

- 12mm thk.

11

MV/m

Electric strength, edgewise in oil at 90ºC

80

kV

Insulation resistance after immersion in water

5x109

ohms

Loss tangent at 1 MHz

0.037

-

Permittivity at 1 MHz

4.4

-

Comparative tracking index

800

-

Relative density

1.36

-

Maximum working temperature**

 

 

- continuous

130

ºC

- intermittent

140

ºC

Thermal classification

Class B

-

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 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.   

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