Description Dupli-Color offers a complete line of undercoating products ideal for providing protection for wheel wells, gas tanks, frames and supports, weld joints, floor pans, doors, and quarter panels. Dupli-Color Undercoat (UC1"1" offers economical protection plus paintablity, moisture resistance, corrosions resistance, and a durable rubberized finish. Dupli-Color Professional Undercoat with Sound Eliminator (UC1"2) provides superior protection by also reducing road vibrations and road noise.