1. Download a grunge brush - Here are some links
2. Once you have a couple of grunge brushes, create a new layer in photoshop above your original picture
3. Now with a grunge brush, brush where you want this grungy effect with any color you like
4. Once you have your grunge layer that's ready to go, click on the 'Background' layer - then CTRL + CLICK Layer 1 ( this will high light the layer )
Now simply press the delete key on your keyboard
CTRL + D to deselect it and click on the eye icon that's beside Layer 1 ( This will hide the layer )

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10 Random TutorialKit Materials:












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