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Gateway Park Center PERKINS+WILL <br /> 810495.000 <br /> 12/06/18 <br /> <br /> <br />INTERIOR PAINTING <br /> 09 91 23 - 5 <br /> <br /> <br />1. After completing painting operations, use workers skilled in the trades <br />involved to reinstall items that were removed. Remove surface-applied <br />protection if any. <br />C. Clean substrates of substances that could impair bond of paints, including dust, <br />dirt, oil, grease, and incompatible paints and encapsulants. <br />1. Remove incompatible primers and reprime substrate with compatible primers <br />or apply tie coat as required to produce paint systems indicated. <br />D. Concrete Substrates: Remove release agents, curing compounds, efflorescence, <br />and chalk. Do not paint surfaces if moisture content or alkalinity of surfaces to be <br />painted exceeds that permitted in manufacturer's written instructions. <br />E. Masonry Substrates: Remove efflorescence and chalk. Do not paint surfaces if <br />moisture content or alkalinity of surfaces or mortar joints exceeds that permitted in <br />manufacturer's written instructions. <br />F. Steel Substrates: Remove rust, loose mill scale, and shop primer, if any. Clean <br />using methods recommended in writing by paint manufacturer. <br />G. Shop-Primed Steel Substrates: Clean field welds, bolted connecti ons, and areas <br />where shop paint is abraded. Paint exposed areas with the same material as used <br />for shop priming to comply with SSPC-PA 1 for touching up shop-primed surfaces. <br />H. Galvanized-Metal Substrates: Remove grease and oil residue from galvanized sheet <br />metal by mechanical methods to produce clean, lightly etched surfaces that <br />promote adhesion of subsequently applied paints. <br />I. Cotton or Canvas Insulation Covering Substrates: Remove dust, dirt, and other <br />foreign material that might impair bond of paints to substrates. <br />3.3 APPLICATION <br />A. Apply paints according to manufacturer's written instructions and to <br />recommendations in "MPI Manual." <br />1. Use applicators and techniques suited for paint and substrate indicated. <br />2. Paint surfaces behind movable equipment and furniture same as similar <br />exposed surfaces. Before final installation, paint surfaces behind permanentl y <br />fixed equipment or furniture with prime coat only. <br />3. Paint front and backsides of access panels, removable or hinged covers, and <br />similar hinged items to match exposed surfaces. <br />4. Do not paint over labels of independent testing agencies or equipment name, <br />identification, performance rating, or nomenclature plates. <br />5. Primers specified in painting schedules may be omitted on items that are <br />factory primed or factory finished if acceptable to topcoat manufacturers. <br />B. Tint each undercoat a lighter shade to facilitate identification of each coat if <br />multiple coats of same material are to be applied. Tint undercoats to match color of <br />topcoat, but provide sufficient difference in shade of undercoats to distinguish each <br />separate coat.