U-POL® ACID#8 UP0837 Acid Etch Primer, 450 mL Aerosol Can, Black, Liquid, 48.4 sq-ft CoverageProduct DescriptionACID#8 1K Acid Etch Primer Aerosol may be overpainted with most water based or solvent based basecoats or solid colors. Under normal circumstances, ACID#8 can be directly overcoated without sanding. ACID#8 may be overcoated directly with top coat. If the repair requires additional build primer filler should be used before topcoat is applied.FeaturesEtch and prime bare metal in one stepFlat fan high atomization nozzle offers a large fan pattern and excellent coverageCreates an anti-corrosive barrier that prevents steel from rustingCan be directly topcoated - no sanding required