The steel tubing is galvanized on the outside and inside and sealed with a flexible clearcoat before it arrives at our plant in Ozark, MO. thick, matte black, textured powdercoat that improves corrosion resistance while adding chip resistance. The GALVASHIELD Impact trailer finish is a 5-mil. We build each trailer ourselves to match the boat that will ride on it. Every trailer frame features our exclusive GALVASHIELD Impact protection, providing exceptional corrosion and chip resistance. SUN TRACKER® offers an optional trailer with every model for those who want to tow their boat from place to place.