ACRI-SHIELD FLAT LT BASE|ACRI-SHIELD FLAT Exterior Acrylic Paint is a superior, exterior, 100% acrylic, flat house paint. It can be used on all types of new or previously painted exterior wood and masonry surfaces such as siding, trim, eaves, facias, shutters, fences, properly prepared brick, block, stucco and concrete surfaces, vinyl, primed metals and metal siding, vinyl siding and trim, etc. It is easy to clean, non-yellowing, mildew-resistant, washable and low-odor, and can be applied over both latex and alkyd paints.