A concentrated solution which is biodegradable, phosphate and caustic-free. Alkaline cleaner formulated for general purpose and normal maintenance cleaning applications. General purpose solution removes general soils, fingerprints, dust, packaging particulates, light oils, and greases. GP solution is safe for use with most base metals and alloys, thermoset and thermoplastic resins, and other synthetic materials. GP solution is easily mixed with water to form a concentration of 10-12% by volume, and can be used at temperatures ranging from ambient to 180°F (82°C).