SRBP & SRBF

P1, P2, P3, F1, F2 & F3

P1, P2 and P3 are versatile electrical insulation materials. They are manufactured using fine layers of phenolic paper and exhibit high strength and excellent electrical properties coupled with low moisture absorption.

There is a choice of grades dependent upon voltage or other water absorption or insulation criteria. P grades are used in low temperature and electrical applications where rigid nonmetallic insulation is needed.

F1, F2 and F3 are multi-purpose insulation materials manufactured using coarse, medium and fine weave phenolic cottons. They have excellent strength properties and very good wear resistance characteristics. They are commonly used in general mechanical applications where electrical insulation properties are also required. Medium and coarse weave grades are used for larger and more rugged components with the finer weave utilised for a higher definition machined finish. The finer weave also offers higher strength in lower thicknesses as well as consistent dimensional stability. Both P and F grades are available in sheet tube and rod form.

P Grade features

  • Machinable
  • Low water absorption properties
  • Good electrical Insulation
  • High voltage insulation

F Grade features

  • Dimensional stability
  • Wear resistant
  • Machinable
  • High impact resistance
  • Low voltage insulation
Typical Composition

Cellulose paper/fabric substrate bonded with fully cured/cross-linked phenolic resin.

USED IN

P Grade

  • Terminal Plates
  • Mounting Plates
  • Coil Formers
  • Sleeving
  • Bushes
  • Busbar Supports
  • Coil Supports
  • Spacers
  • High Voltage Insulation

F Grade

  • Cams
  • Mechanical Insulation
  • Wear Plates
  • Gears
  • Actuating Arms
  • Sleeving
  • Low Voltage Insulation

KEY DATA
COLOUR DENSITY MAXIMUM TEMPERATURE DIELECTRIC STRENGTH SHEAR STRENGTH COMPRESSIVE STRENGTH
Kg/m3 ˚C KV MPa MPa
F1 Brown 1350 120 23 105 350
F2 Brown 1350 120 8 100 320
F3 Brown 1350 120 10 100 315
P1 Brown 1350 100 25 100 300
P2 Brown 1350 100 25 100 320
P3 Brown 1350 100 55 100 350
The data provided is taken from average test results conducted under standard procedures and conditions and should not be used for specification purposes.

To receive a quotation call: +44 (0) 1744 283 04

CONTACT

Get In Touch
UK (Accredited Office)
Esspee Fabrications Ltd
149 Merton Bank Road
St. Helens
Merseyside
WA9 1DZ
Tel : +44 (0) 1744 28304
Fax : +44 (0) 01744 28826
Email: sales@esspee.com

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UK Midlands Office
Esspee Midlands
Wassall Grove Lane
Stourbridge
West Midlands
DY9 9JH
Tel : +44 (0)1562 881026
Fax : +44 (0) 872 331 3117
Email: simon@esspee.co.uk

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Middle East Office
Esspee Middle East
P O Box 74345
203 Al Hawai Tower
Sheikh Zayed Road,
Dubai, UAE
Tel : +9714 3211104
Fax : +9714 3211939
Email: mohammed@esspeeme.com

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China Office
Esspee China
1910 Building E
Huidong Intl
16 Jinpu Rd, Nanning
Guangxi
Tel : +86 771 556 1684
Fax : +86 771 556 1640
Email: chunyuyang20@gmail.com

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