just got the 3m rubbing compound fine cut. might use it soon but when i was reading the bottle it was reading the warnnings about using it. it says "crystalline silica generated during spurring of dry pads may cause silicosis and cancer" whats this spurring anyway? it says to use in a well ventilated area, does a garage count? this is all new to me, i never seen a car product that is so hazardous to your health.