It's certainly of common usage on the east Coast. The nomenclature and the product. Particle board would be considered a different product around here (less dense)

Back to the topic :)

This talk of MDF and Particle board reminds me that there was an experiment to build a spitfire from phenol resin bonded fabric.

The fabric was flax, and they only built two Spitfire fuselages with what was called Aerolite, no wings. They did fit a number of Beaufighters in the Middle and Far East with Aerolite panels aft of the wing spar. The rear fuselage of a Magister and 30 Magister tailplanes were constructed, also the main spar of a Blenheim for test, which failed at 80% load.

Isn't that called Tufnol?

I thought Paxolin but I'm prepared to be proved wrong.
I think my elderly long unused motorbike has a Tufnol block between the carb and head.

What is Tufnol?

Chiarain.

I was trained not to use Trade names such as Tufnol or Paxolin but Synthetic resin bonded fabric (SRBF) was OK, then you could have an argument as to why Nylon (a DuPont trade name) was acceptable.