GCX(R) uses RS200TM zinc-aluminum coating for optimal corrosion resistance. The robotically applied coating is a market leader in corrosion resistance, achieving over 200 hours of salt spray corrosion testing.. 2 Coating Types Partially or Fully coated to match OE friction type; means the right rotor for your car; Road-Ready from the box to your vehicle; no additional prep needed. Buick Rainier 2007-2006, Chevrolet SSR 2006, Trailblazer 2009-2006, GMC Envoy 2009-2006, Isuzu Ascender 2008-2007. Centric; Centric Parts; GxC Brake; GxC Rotor; Brake Rotor. For consistent and confident braking from the first stop. Centric 06-07 Buick Rainier GCX Brake Rotors - Front. For optimal heat transfer and structural strength. Centric GCX Rotor with Full Coating. Carbon Enhanved Advanced Metallurgy. OE Vane Design and Plate Thickness. For smooth vibration free stopping. RS200TM Zinc-Aluminum Rich Coating. For vibration free performance. For heat capacity and strength. GCX Rotor with Full Coating. Low Initial Lateral Run-Out. GCX Rotor w/Full Coating. Optimal Surface Finish. GCX FC Brake Rotor. Precision Balance

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