Review (5/5): Very useful for chipping/weathering effects
This stuff works great. I use it to weather my model tanks. My process is as follows. 1. Prime the model completely using your favorite airbrush primer. 2. Apply a metallic undercoat. 3. Apply spots of a dark brown color to the model. 4. using a sponge with a little bit of this product dab it over the model in random locations. Places in which there would likely be chipping. Let dry. 5. Apply your final color over the model and let the model sit overnight. 6. run some warm water and use a toothbrush to rub at the areas in which you've applied this. You'll be able to see them as they will look like bubbles under your base coat. The warm water mixed with the toothbrush will remove the paint overtop the micromask and look like chipped paint.
Once I figured out this process this product has paid for itself many times over.