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The Daily Insight

What is Paxolin made from?

Author

Isabella Ramos

Updated on April 29, 2026

Paxolin (SRBP) is a brown phenolic paper laminate offering good mechanical and electrical properties in low voltage applications. The material is strong, rigid and economical, and ideal in applications such as terminals boards, mounting plates, busbar supports and cable supports.

Is Paxolin conductive?

The paxolin doesn’t become conductive in itself, it’s the charring, or more correctly the ”Carbon” that is the conductive component.

What is Paxolin for?

Paxolin sheets are a resin impregnated laminate material that are designed to be strong insulators, used for their mechanical and electrical insulating properties in a wide variety of low-voltage environments. They are an inexpensive method of providing lightweight yet rigid electrical insulation.

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.

What is Tufnol material?

Tufnol® industrial laminates are engineering materials constructed from layers of fibrous reinforcement, such as paper, cotton or glass fabric. These layers are bonded together with high quality thermoset resin, producing the laminate with a number of beneficial properties.

What are paxolin sheets used for?

We stock Paxolin sheets (our product SRBP P1) in thicknesses between 0.8mm – 25mm, and offer the material cut to size. This material is used as a low voltage insulator when electrical requirements are moderate, and can be easily machined. It is rigid and has good impact and mechanical strength.

Where do you place paxoline?

A piece of paxolin would be placed in between cut-outs or slots of trunking and D.B for cable protection. I’ve seen ply used before, but surely could pose a hazard if tails become hot, I know that would be in an extreme circumstance but heh!! I have recently been informed that Paxoline is now banned, something to do with the dust.

When did paxoline become so popular?

Very popular in the 1900’s. Kendal as a company we use 10mm paxoline on most of our installs, when jigged out it is ideal to fit, marshalling cables between Dis boards and trunking.

How did a paxolin board catch fire?

A substantial paxolin board was holding a set of brass bolts with 300mm2 lugged cable ends jointed onto the bolts. One became high resistance and subsequently heated up. The paxolin charred and caught fire with ensuing fun and games. (I modified the design to use porcelain supports after that)