Spot Off

HF Acid Based Hard Water Spot Remover. Spot Off was developed for use where other products have failed. It contains a space liquid pumice formulation that lets you get rid of unsightly water spots caused mainly by sprinkling systems and rainwater. This product is not meant to be used as a daily window cleaner. It is use on spots and stains that your window cleaner will not remove. **Always test the surface to be cleaned in an inconspicuous area to determine if the surface is sensitive. Dilute 1 part product with 4 to 10 parts water. Do not allow cleaner to dry on glass. After the product has done its work, rinse throughly with plenty of clear water. Avoid contact with aluminum and magnesium.