What is SRBP P1 (Paxolin) and How Can It Be Used?

What is SRBP? SRBP (equivalent to Paxolin, IP/13 and B4) is a Synthetic Resin Bonded Paper industrial laminate, which is available in two grades: P1 and P3. The main difference between each grade is their electrical properties.

The difference between SRBP P1 and SRBP P3

The key difference between the grades is their compliance with British Standards. P1 conforms to BS EN 60893 3-4-PFCP201 and P3 conforms to BS EN 60893 3-4-PFCP206. P1 is suitable for low voltage applications in contact with the air, whereas P3 is better suited to high voltage and situations where materials will be in contact with moisture.

Material characteristics & applications of P1 (Paxolin)

SRBP P1 acts as a good, economic insulating material to be used when electrical requirements are moderate. Some of the key material characteristics of P1 (Paxolin) are:

  • Low voltage insulation
  • Can be easily machined
  • Good economic cost
  • Reasonable mechanical and impact strength

Due to its good machinability, mechanical and impact strength, SRBP P1 can be used for a wide range of engineering components. Some of the typical applications of P1 industrial laminate are:

  • Electrical insulation components
  • Spacers
  • Base plates
  • Side plates
  • Simple jigs and fixtures

For more information on SRBP P1

Material characteristics & applications of P3

In comparison, SRBP P3 exhibits stronger insulating properties, and can be used in conditions where it will come into contact with water. Characteristics of P3 include:

  • Very good electrical insulation
  • Good machinability
  • Low moisture absorption
  • Good mechanical strength

Typical applications of SRBP P3:

  • Terminal boards
  • Tag strips
  • Insulated enclosures
  • Mounting panels
  • Insulating sleeves & bushes
  • Insulating spacers
  • Busbar supports
  • Coil formers

For more information on SRBP P3

Ai Engineering Plastics have one of the largest stocks of engineering plastics and industrial laminates in the UK. We supply SRBP P1 sheet in both brown and black, with thicknesses from 3mm up to 12mm. And SRBP P3 sheet in brown, with thicknesses from 1.6mm to 20mm. Buy SRBP sheet with Next Day UK Delivery here.

Or for more information about our products and processing services, call our team on 0161 727 0255.


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