Review (5/5): My specific application.
As one always on the lookout for better ways to model "chips" in paint, I chose this product with the intention of applying by sponge, and removing with a Q-Tip or masking tape. Because of the small scale of my project, I used a fine sponge (the type that comes on foam paint brushes). This necessitated that the quantity of Micro Mask be very thin in depth and tiny in area covered. When applied in this way, the film still acts as a barrier to the top coat of paint, but becomes unrecognizable where it was applied, after the top coat dries (as opposed to the chipping by salt technique, where the evidence of salt stays visible after the top coat is applied). And because of the thin layer of Micro Mask and the thick layer of rattle can top coat, only the use of an X-Acto knife was sufficient for scraping off the topcoat and Micro Mask. The Micro Mask did assist to some extent in removing the topcoat, but a lot of top coat that was not covered by the Micro Mask was also removed. However, in a chipping effect, where paint damage is the intended desire, the results overall were actually very good. (The topcoat as the final visible color of one's project has the "chips" in it from weathering, revealing the hidden base coat - which can be reddish to depict rust, or grayish to depict primer.)