What are the critical concerns regarding TMM® materials?
The primary thing to keep in mind is that TMM material is brittle and a very high modulus (stiff). It is not recommended to punch or shear the TMM material. Instead, drilling, routing and machining should be done. It must be expected that the drill life too will be dramatically shorter than more standard materials. Bending and handling should also be avoided during fabrication as much as possible. The thinner grades of TMM laminates (<20mil) are more susceptible to cracking and fracturing due to mishandling.
