8.3. SR 09-21-2015 - Laserfiche WebLink

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Revised: May 6, 2013 MACROPOXY® 646-100 FAST CURE EPOXY PART A B58-620 SERIES PART B B58V620 HARDENER Protective & Marine Coatings 4.52 www.sherwin-williams.com/protective SURFACE PREPARATIONS Surface must be clean, dry, and in sound condition. Remove all oil, dust, grease, dirt, loose rust, and other foreign material to ensure adequate adhesion. Iron & Steel, Atmospheric Service:Minimum surface preparation is Hand Tool Clean per SSPC-SP2. Remove all oil and grease from surface by Solvent Cleaning per SSPC-SP1. For better performance, use Commercial Blast Cleaning per SSPC-SP6/NACE 3, blast clean all surfaces using a sharp, angular abrasive for optimum surface proﬁ le (2 mils / 50 microns). Prime any bare steel within 8 hours or before ﬂ ash rusting occurs. Iron & Steel, Immersion Service:Remove all oil and grease from surface by Solvent Cleaning per SSPC-SP1. Minimum surface preparation is Near White Metal Blast Cleaning per SSPC-SP10/NACE 2. Blast clean all surfaces using a sharp, angular abrasive for optimum surface proﬁ le (2-3 mils / 50-75 microns). Remove all weld spatter and round all sharp edges by grind-ing. Prime any bare steel the same day as it is cleaned. AluminumRemove all oil, grease, dirt, oxide and other foreign material by Solvent Cleaning per SSPC-SP1. Galvanized SteelAllow to weather a minimum of six months prior to coating. Solvent Clean per SSPC-SP1 (recommended solvent is VM&P Naphtha). When weathering is not possible, or the surface has been treated with chro-mates or silicates, ﬁ rst Solvent Clean per SSPC-SP1 and apply a test patch. Allow paint to dry at least one week before testing adhesion. If adhesion is poor, brush blasting per SSPC-SP7 is necessary to remove these treatments. Rusty galvanizing requires a minimum of Hand Tool Cleaning per SSPC-SP2, prime the area the same day as cleaned. Concrete and MasonryFor surface preparation, refer to SSPC-SP13/NACE 6, or ICRI No. 310.2, CSP 1-3. Surfaces should be thoroughly clean and dry. Concrete and mortar must be cured at least 28 days @ 75°F (24°C). Remove all loose mortar and foreign material. Surface must be free of laitance, concrete dust, dirt, form release agents, moisture curing membranes, loose cement and hardeners. Fill bug holes, air pockets and other voids with Steel-Seam FT910. Concrete, Immersion Service:For surface preparation, refer to SSPC-SP13/NACE 6, Section 4.3.1 or 1.3.2 or ICRI No. 310.2, CSP 1-3. Follow the standard methods listed below when applicable:ASTM D4258 Standard Practice for Cleaning Concrete.ASTM D4259 Standard Practice for Abrading Concrete.ASTM D4260 Standard Practice for Etching Concrete.ASTM F1869 Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete.SSPC-SP 13/Nace 6 Surface Preparation of Concrete.ICRI No. 310.2 Concrete Surface Preparation. Previously Painted SurfacesIf in sound condition, clean the surface of all foreign material. Smooth, hard or glossy coatings and surfaces should be dulled by abrading the surface. Apply a test area, allowing paint to dry one week before testing adhesion. If adhesion is poor, or if this product attacks the previous ﬁ nish, removal of the previous coating may be necessary. If paint is peeling or badly weathered, clean surface to sound substrate and treat as a new surface as above. Surface Preparation Standards Condition of Surface ISO 8501-1BS7079:A1 Swedish Std.SIS055900 SSPC NACE White Metal Sa 3 Sa 3 SP 5 1Near White Metal Sa 2.5 Sa 2.5 SP 10 2Commercial Blast Sa 2 Sa 2 SP 6 3Brush-Off Blast Sa 1 Sa 1 SP 7 4 Hand Tool Cleaning Rusted C St 2 C St 2 SP 2 -Pitted & Rusted D St 2 D St 2 SP 2 - Power Tool Cleaning Rusted C St 3 C St 3 SP 3 -Pitted & Rusted D St 3 D St 3 SP 3 - APPLICATION BULLETIN APPLICATION CONDITIONS Temperature: 40°F (4.5°C) minimum, 140°F (60°C) maximum (air, surface, and material) At least 5°F (2.8°C) above dew point Relative humidity: 85% maximum APPLICATION EQUIPMENT The following is a guide. Changes in pressures and tip sizes may be needed for proper spray characteristics. Always purge spray equipment before use with listed reducer. Any reduction must be compliant with existing VOC regulations and compatible with the existing environmental and application conditions. Reducer/Clean Up ...........Reducer R7K111 or Oxsol 100 Airless Spray Pump..............................30:1 Pressure.........................2800 - 3000 psi Hose...............................1/4" ID Tip ...................................017" - .023" Filter ...............................60 mesh Reduction .......................As needed up to 10% by volume Conventional Spray Gun ................................DeVilbiss MBC-510 Fluid Tip .........................E Air Nozzle.......................704 Atomization Pressure .....60-65 psi Fluid Pressure ................10-20 psi Reduction .......................As needed up to 10% by volume Requires oil and moisture separators Brush Brush..............................Nylon/Polyester or Natural Bristle Reduction .......................Not recommended Roller Cover .............................3/8" woven with solvent resistant core Reduction .......................Not recommended If speciﬁ c application equipment is not listed above, equivalent equipment may be substituted. continued on back