Flex Seal was flexible but tore when bent too far. And although it sealed the crack in our flowerpot, we had to use two coats of spray paint to conceal our handiwork.

"First," says Humphries, "spraying on a second coat of sealer covers up any slight ... step process," says Seal-Rite president Brent Loutzenhiser. He explains: "Using the spray wand, lay a bead ...