Disable "Bouncing" of objects

Hi, I've set twos objects' material to below:

      Material material = new Material();
      MutableContactInfo info = new MutableContactInfo();
      material.putContactHandlingDetails(null, info);

This works , but not completely perfect ... It still will bounce off abit from another one :(

Is your floor bouncy?

Also, material interaction is based on material-material interactions, I think, so you could have more grip with tarmac-granite than ice-granite.