Por Patch Filler and Sealer, Black, 4 oz.

• POR-15® Patch is, quite literally, POR-15®, in a tube, and like POR-15®, it dries as hard as a rock, remains flexible, and once dry is totally impervious to fuels and solvents • It’s so tough it may actually add strength to weakened metal • It won’t absorb moisture and swell like conventional body fillers