Douglas Acid Etch

Douglas Acid Etch sounds like a finishing product, probably for surface preparation in a workshop rather than a consumer item for casual use. By our assessment, that kind of product earns its keep by changing how a surface takes paint, coating, or another finish, which is a narrow and practical job. The downside is that this is not forgiving material: acid-etch products call for care, proper handling, and a clear understanding of what surface they are meant for. In practice they belong in the hands of people who already know why they need an etch step, not in the middle of a do-it-all toolkit. Douglas Acid Etch sits with specialist prep products, where the whole point is doing one job before the real finish goes on.