1 Protective & Marine Coatings MACROPOXY 646. MULTI -PURPOSE EPOXY. Revised 05/2013 Issue 1. PRODUCT DESCRIPTION PERFORMANCE CHARACTERISTICS. MACROPOXY 646 Substrate: Steel A versatile high performance polyamide cured epoxy designed to fulfil the needs of both new construction and maintenance painting. Surface Preparation: SSPC-SP10/NACE 2/Sa2 . User friendly with a 1:1 mix ratio, it is fast drying, surface tolerant System Tested: 1 ct. MACROPOXY 646 Fast Cure @ 150 microns dft and available in a range of colours making it ideal for atmospheric and immersion service. Test Name Test Method Results Low VOC Chemical resistant Low odour Abrasion resistant Abrasion Resistance ASTM D4060, CS17 wheel, 84 mg loss Outstanding application properties 1000 cycles, 1 kg load Accelerated ASTM D4587, QUV-A, Passes PRODUCT CHARACTERISTICS Weathering-QUV 12,000 hours Finish: Semi-Gloss Adhesion ASTM D4541 1,037 psi Colours: White and a range of colors Nuclear ASTM D4256/ANSI N 99% Water Wash; 95%.
2 Decontamination Overall Volume Solids: 72% 2%, mixed, White Direct Impact Resistance ASTM D2794 Weight Solids: 85% 2%, mixed, White Dry Heat Resistance ASTM D2485 121 C. VOC: Unthinned: <250 g/ltr Thinned 10%: <300 g/ltr Exterior Durability 1 year at 45 South Excellent, chalks Mix Ratio: 1:1 by volume Flexibility ASTM D522, 180 bend, Passes 3/4" mandrel Recommended Spreading Rate per coat: ASTM D4585, 6000 No blistering, cracking, or Minimum Maximum Humidity Resistance hours rusting Wet microns 174 347 1 year fresh and salt Passes, no rusting, Dry microns 125 250 Immersion water blistering, or loss of adhesion Theoretical Coverage m2/ltr ASTM D4082 / ANSI. NOTE: Brush or roll application may require multiple coats to Radiation Tolerance Pass at 525 microns achieve maximum film thickness and uniformity of appearance.
3 Pencil Hardness ASTM D3363 3H. Drying Schedule @ 175 microns: Flame Spread Index 20;. @ 2 C @ 25 C @ 38 C Smoke Development Surface Burning ASTM E84/NFPA 255. 50% RH Index 35 (at 18 mils or 450 microns). To touch: 4-5 hours 2 hours hours To handle: 48 hours 8 hours hours Water Vapour ASTM D1653, Method B metric perms Permeance To recoat: Epoxy Coatings may darken or discolour following application and curing. minimum: 48 hours 8 hours hours maximum: 1 year 1 year 1 year To cure: DISCLAIMER. Service: 10 days 7 days 4 days The information and recommendations set forth in this Product Data Sheet Immersion: 14 days 7 days 4 days are based upon tests conducted by or on behalf of The Sherwin-Williams Company. Such information and recommendations set forth herein are subject If maximum recoat time is exceeded, abrade surface before recoating.
4 To change and pertain to the product offered at the time of publication. Consult Drying time is temperature, humidity, and film thickness dependent. your Sherwin-Williams representative to obtain the most recent Product Data Paint temperature must be at least 40 F ( C) minimum. Information and Application Bulletin. Pot Life: 10 hours 4 hours 2 hours Induction 30 minutes 30 minutes 15 minutes Time: Shelf Life: 36 months, unopened Store indoors at C to 38 C. Flash Point: 33 C mixed Cleanser / Thinner: C50. continued on back Protective & Marine Coatings MACROPOXY 646. MULTI -PURPOSE EPOXY. Revised 05/2013 Issue 1. RECOMMENDED USES SURFACE PREPARATION. Marine applications Surface must be clean, dry, and in sound condition. Remove all oil, dust, Pulp and paper mills Refineries grease, dirt, loose rust, and other foreign material to ensure adequate Power plants Chemical plants adhesion.
5 Offshore platforms Tank exteriors Nuclear Power Plants Water treatment plants Refer to product Application Bulletin for detailed surface preparation in- White is acceptable for immersion use for salt water and fresh formation. water, not acceptable for potable water Minimum recommended surface preparation: Steel * Tinting is not recommended for immersion service. Atmospheric: SSPC-SP2/3 (St2/St3). Immersion: SSPC-SP10/NACE 2/Sa2 50-75 micron RECOMMENDED SYSTEMS profile Aluminum: SSPC-SP1. Dry Film Thickness / ct. Galvanizing: SSPC-SP1; (See Page 3 details). Microns Surface Preparation Standards Immersion and atmospheric: Condition of ISO 8501-1 Swedish Std. Steel: Surface BS7079:A1 SIS055900 SSPC NACE. 2 cts. MACROPOXY 646 125-250 White Metal Sa 3 Sa 3 SP 5 1.
6 Near White Metal Sa Sa SP 10 2. Concrete/Masonry, smooth: Commercial Blast Sa 2 Sa 2 SP 6 3. Brush-Off Blast Sa 1 Sa 1 SP 7 4. 2 cts. MACROPOXY 646 125-250. Hand Tool Cleaning Rusted Pitted & Rusted C St 2. D St 2. C St 2. D St 2. SP 2. SP 2. - - Aluminum: 2 cts. MACROPOXY 646 125-250 Power Tool Cleaning Rusted Pitted & Rusted C St 3. D St 3. C St 3. D St 3. SP 3. SP 3. - - Galvanizing: 2 cts. MACROPOXY 646 125-250 APPLICATION CONDITIONS. Temperature: 2 C minimum, 49 C. FIRETEX ONLY: maximum (air and surface). Steel & Galvanized Substrates being primed for FIRETEX only: C minimum, 49 C. 1 ct. MACROPOXY 646 50-125 maximum (material). At least 3 C above dew point The systems listed above are representative of the product's use, other Relative humidity: 85% maximum systems may be appropriate.
7 Refer to product Application Bulletin for detailed application information. ORDERING INFORMATION. Packaging: Base (Part A): 10ltr in 20ltr pail Additive (Part B): 10ltr in pail Weight: Kg/ltr mixed, may vary by colour SAFETY PRECAUTIONS. Refer to the MSDS sheet before use. Published technical data and instructions are subject to change without notice. Contact your Sherwin-Williams representative for additional technical data and instructions. WARRANTY. The Sherwin-Williams Company warrants our products to be free of manufacturing defects in accord with applicable Sherwin-Williams quality control procedures. Liability for products proven defective, if any, is limited to replacement of the defective product or the refund of the purchase price paid for the defective product as determined by Sherwin-Williams.
8 NO OTHER WARRANTY OR GUARANTEE OF ANY. KIND IS MADE BY SHERWIN-WILLIAMS, EXPRESSED OR IMPLIED, STATUTORY, BY OPERATION OF LAW OR OTHERWISE, INCLUDING. MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Protective & Marine Coatings MACROPOXY 646. MULTI -PURPOSE EPOXY. Revised 05/2013 Issue 1. SURFACE PREPARATIONS APPLICATION CONDITIONS. Surface must be clean, dry, and in sound condition. Remove all oil, Temperature: 2 C minimum, 49 C. dust, grease, dirt, loose rust, and other foreign material to ensure adequate adhesion. maximum (air and surface). Steel, Atmospheric Service: C minimum, 49 C. Minimum surface preparation is Hand Tool Clean per SSPC-SP2. maximum (material). Remove all oil and grease from surface by Solvent Cleaning per SSPC-SP1.
9 For better performance, use Commercial Blast Cleaning At least 3 C above dew point per SSPC-SP6/NACE 3/Sa2, blast clean all surfaces using a sharp, angular abrasive for optimum surface profile 50-75 microns. Prime any bare steel before flash rusting occurs. Relative humidity: 85% maximum Steel, Immersion Service: Remove all oil and grease from surface by Solvent Cleaning per SSPC- APPLICATION EQUIPMENT. SP1. Minimum surface preparation is Near White Metal Blast Cleaning per SSPC-SP10/NACE 2/Sa2 . Blast clean all surfaces using a sharp, The following is a guide. Changes in pressures and tip sizes may angular abrasive for optimum surface profile 50-75 microns. Remove all weld spatter and round all sharp edges by grinding. Prime any bare be needed for proper spray characteristics.
10 Always purge spray steel the same day as it is cleaned. equipment before use with listed reducer. Any thinning must be compliant with existing VOC regulations and compatible with the Aluminum Remove all oil, grease, dirt, oxide and other foreign material by Solvent existing environmental and application conditions. Cleaning per SSPC-SP1. Cleanser / Thinner ..C50. Galvanized Steel Allow to weather a minimum of six months prior to coating . Solvent Airless Spray Clean per SSPC-SP1 (recommended solvent is VM&P Naphtha). :1. When weathering is not possible, or the surface has been treated with - 3000 psi chromates or silicates, first Solvent Clean per SSPC-SP1 and apply a test patch. Allow paint to dry at least one week before testing " ID.