GrungeFX is free. You can download GrungeFX under the 'Files' tab below.
Grunge FX tools
This Xpresso tool is based on the tutorial by Ben Watts as seen here https://vimeo.com/93337566
The tool provides an easy way to setup unique grunge, weathering, and distress effects to your object without any need to UV map or use BodyPaint to paint masks.
Use at your own risk no Guarantees.