No rubber in materials library?

[tranq006]

Hello All, 

This is pretty urgent..by tonight, I need to have the correct (at least closer to correct) materials added to this valve design. While the appearances are fine, I cannot seem to find any types of rubber in the physical material library? In fact, I am surprised by the lack of materials in the physical materials library. Is there something I'm not seeing?>

[jeff_strater · Accepted solution]

for some strange reason, they appear to be classified under "Plastic":

[chrisplyler]

I'm still waiting for an Antimatter material, and the ability to simulate bringing a mass of Antimatter together with any other regular material.

[TheCADWhisperer]

You have to set one of your components to Unobtanium and it will work.

[chrisplyler]

AHA! Doughnut for you sir.