You can let the product dry by sticking it to a surface when not in use, but only temporarily. Stick it again if it comes off after a long time. / Do not leave it affixed for a long time. Do not attach it to plastic surfaces or treated surfaces (e.g., anti-fogging mirrors or resin-coated surfaces) because it may leave marks. / Microparticle diamonds are a very hard abrasive.May leave noticeable marks on mirrors or glass material depending on usage conditions. / Do not use on uneven surfaces. / May not remove grime that has been left sitting for an extended period of time or that is caused by compounds, penetrating oil, etc. depending on water quality.Test on an inconspicuous area first.Do not rub too hard.Keep away from fire or heat.Use only as intended.