How much noise can a coating dampen? That depends on the application, but the results obtained in diesel engines are indicative.

 

By coating only the rotors of a supercharger, a drop in noise emissions of 2.5 dBa was measured and the efficiency of the blower was significantly improved.

 

Another benefit: in case of a bearing malfunction, the Xylan coating acts as an emergency lubricant to keep the blower from self-destructing until it can be shut off.

 

The Xylan coating led to a
significant reduction in noise.