sunscreen will keep the pargon in the tire longer. as the pargon sits on the tire two things are going on, one it socking into the tire and two it evapaing into the air. By putting sunscreen on top of the last bit of pargon its letting the rest of it go into the tires and not into the air which will give you longer traction outdoors. just make sure to get aloe free sunscreen.


coppertone 15 or 45 the old stuff works best as it has no added aloe,or bug stuff in it

hope this helps