This product is a lifesaver. Brush it on an exposed wire and it's sealed without the bulk that tape creates. I feel a lot more secure using this on exposed electrical wires than I do with tape. I've had taped connections become exposed again because of heat and humidity causing the gloue on the tape to degrade and pull away for the exposed area. With this product the fix is permanent and as water proof as the original wire casing.  This is one of those must have items for any home or shop.