DIESEL FUEL TANK SHIELD This Fuel Tank Shield adds an extra layer of protection to the Titan™ Extra-Capacity Polypropylene Diesel Fuel Tank (sold separately) during off-road treks The Titan™ Shield is made of high-density, military-grade, cross-linked polyethylene-the same virtually indestructible material used in the construction of the Diesel Fuel Tanks The unique cross-linked structure of this Shield dissipates stress and impact, making it five times stronger than conventional polyethylenes. It's also super resistant to temperatures extremes (hot and cold), lightweight and completely corrosion free. The Titan™ Shield is contoured to fit on the bottom of the Titan™ Diesel Fuel Tank perfectly.