Do not use the product if it has grime stuck to it. / Do not use bleach or mold removers. / Wet before use. / Will not work on calcified grime around faucets or grime that has penetrated joints and cracks. / After prolonged use, the non-woven fabric will fray, making the product less effective.Test it first in an inconspicuous place.Keep away from fire and other sources of heat.Do not use this product for purposes other than its intended purposes.