Metal Finishing Guide Book

2012-2013

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Series (d) Bright buffed finish on original surface. Series (e) Coarse directional satin finish. Series (f) Medium directional satin finish. Series (g) Fine directional satin finish. Series (h) Hand-rubbed satin-type finish (small areas only). Series (i) Brushed finish. Series (j) Nondirectional satin finish. GENERAL RECOMMENDATIONS The following recommendations are step-by-step instructions for obtaining the designated architectural finishes. Series (b) Finishes: Polish with a wheel coated with an abrasive and cement paste with 80 to 150 grit on sewn or ventilated buffs, lightly lubricated with special bar or liquid lubricants. Buff speed 6,000 sfm. Final polish with a wheel coated with an abrasive and cement paste with 320 grit using the same buff and same speed. Series (c) Finishes: Polish with an abrasive and cement paste coated wheel, 320 grit on sewn or ventilated buff. Light lubrication with special bar or liquid lubricant. Bright buff with clean working tripoli bar compound or liquid tripoli buffing compound on ventilated, sewn, or loose buff. Buff speed 7,000 sfm. Series (d) Finishes: Bright buff only over original surface as for series (c) finishes. No prior polishing required. Series (e) Finishes: Coarse satin finish with greaseless compound of 80 grit over glue base buff sizing on a ventilated or sewn buff, or with liquid abrasive 80 grit on the same type buff. Lubricate the dried compound head with a special bar or liquid lubricant. Buff speed 6,000 sfm. Series (f) Finishes: Medium satin finish with greaseless compound, 120 grit, over a blue base buff sizing on ventilated or sewn buffs, or with liquid abrasive 120 grit on the same type buff. Lubricate dried compound head with a special bar or liquid lubricant. Series (g) Finishes: Fine satin finish with greaseless compound, 150 grit, on a ventilated, sewn or loose buff, or with liquid abrasive 150 grit on the same type of buff. Lubricate dried compound head with a special bar or liquid lubricant. Buff speed 6,000 sfm. Series (h) Finishes: Hand rubbed finish, using coarse steel wool lubricated with a special liquid lubricant. Final rubbing with No. 0 steel wool. Series (i) Finishes: Brush type finish produced with string wheels coated with greaseless compound, 80 grit. String wheel speed 6,000 sfm. Buff head may require some light lubrication with a special bar lubricant, depending on alloy of aluminum. Nylon impregnated wheels are also used for this finish. Series (j) Finishes: Brush type finish produced with a string wheel coated with greaseless compound, 80 grit, but operated at a slow speed of 2,000 to 3,000 sfm. May also require some light lubrication with a special bar lubricant. Again, nylon impregnated wheels may also be used. When high production satin finishing is required for series (e), (f), (g), and (i), use a liquid greaseless abrasive. Such compositions may be applied automatically with properly designed spray equipment. Light lubrication of the satin finished head, when required, is done with nonmisting, low atomizing spray equipment. SAFETY REQUIREMENTS OF POLISHING AND BUFFING Due to increased concern for industrial and environmental safety, state and federal authorities have drawn up guidelines for controlling industrial hazards. These guidelines protect the user as well as the environment. 29

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