THE PURGE -Water Spot Remover is a  liquid formula designed to remove water spot deposits from automotive paint and glass surfaces without scratching. Contains mild abrasives and cleaners that polish away mineral deposits and help restore optical clarity. 
Water Spot Remover also removes salt spray, tree sap, rust, road grime, bugs and paint overspray. Can be diluted up to 1:3
Directions: Apply product to cool surface only. Apply after vehicle wash. Apply using a microfiber applicator pad gently work into the surface. Rinse off immediately with clean water. 
WARNING: DO NOT allow product to dry on surface. DO NOT USE on aluminium
DO NOT apply to a hot surface. Use only as directed. 
CAUTION:
Keep out from the reach of children
Mandatory to use safety gear - Mask, Gloves & Glasses while using this product 
It may damage clothes, always wear work clothes while using it
Contains different acids
Contains hazardous chemicals
Non-Bio Degradable , water spot remover can burn plants