Protect porous outdoor objects from absorbing water to preserve their appearance and help stop them from freezing and cracking during the winter. Apply multi-surface waterproofer with a spray to concrete birdbaths, terracotta pots, wooden bird houses and feeders, and paper maps. Let the treated surface dry for 48 hours and know they're sealed when the water beads on the surface.
Spray large areas, such as a concrete birdbath, with multi-surface waterproofer from a garden sprayer. Pour the solution in, pump it up, and spray about 12 inches from the surface in even strokes to avoid pooling. Cover the work surface.
Let the treated surface dry for 48 hours. Splash a limited amount of water onto determine if it beads and demonstrate that the surface is sealed. If not, another coat is required.
Protect smaller surfaces such as terracotta or other porous clay pots with multi-surface waterproofer in a convenient aerosol can.
Protect wooden objects such as birdhouses with the multi-surface waterproofer applied from an aerosol can. For a cedar bird feeder, the treatment protects the surface while letting the wood beneath age naturally.
Waterproof maps and charts to protect them from the elements as you boat, camp, or hike. Lay the article out flat and coat one or both sides. On drying, the paper remains flexible but sheds water like a duck's back.