Wagman manufactures trowel blades using three different types of steel. They are as follows:
Silver Series: Wagman manufactures its silver line from torque flex steel specially formulated to provide the most wear-resistant, high-performance power trowel blade available.
Blue XL Series: The Wagman Blue XL blade was designed to provide a perfect balance between longer life and maximum operating smoothness. The Blue XL is thicker than the silver series, and combined with its ability to flex slightly, performance is improved and blade life prolonged. The Blue XL blade will give you 15% to 25% longer life over a silver series blade.
Gold Pro Series: The Wagman Gold Pro blade is a blade build tough to meet the demands of ride-on power trowels. It is constructed using extra thick high-performance tool steel and is the longest lasting blade on the market. Due to its thickness it has less flexibility and should only be used on heavier equipment like ride-on trowels. High chrome and carbon content increases abrasion resistance. The Gold Pro blade will give you 25% to 50% longer life over a silver series blade.