- Antifouling Paint For Aluminum Outdrives & Outboards - Contains no copper compounds-will not cause galvanic corrosion - Advance Slime Resistance - May be hauled and relaunched without recoating Alumaspray + is an aerosol antifouling copolymer paint for use on aluminum outdrives and outboard motors in fresh,salt or brackish water. Alumaspray + cleans itself by washing away at controlled rate when in contact with water.