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GULF COAST PAINT MFG., INC. CM-15/page 3 2. Galvanized Steel/Aluminum Solvent clean per SSPC-SPI or steam clean. Sweep blast to achieve minimum 1 mil profile. Apply one (1) coat of CM -15 as a primer at 3-4mils DFT. 3, Previously Painted Surfaces: Solvent clean per SSPC-SP1 and/or power wash. Remove loose existing paint by wire brush or other hand tools. Feather edges. Make lest application to check for compatibility. 4. Concrete In all cases of surface preparation, the pH should be checked. A pH reading of 7.0 to 8.5 is acceptable. Also, a Water Dissipation Test should be made on random areas of the floor to determine if the proper degree of porosity has been achieved. Before the installation of any Gulf Coat Paint Products, the sub- strate should be examined for moisture. Test for moisture vapor transmission using ASTM F-1859 Stand and Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor using Anhydrous Cal- cium Chloride. The maximum allowable rate is 3 Itis. per 1,000 square feet per 24 hours. Test for relative humidity in concrete floor slabs using Probes according to ASTM F-2170. This test measures the pres- ence relative humidity of the slab below the surface. The maximum relative humidity should be below 60%. New concrete must be cured at least a minimum of 28 days before applying a coating. On -grade slabs must have moisture vapor barrier in place. All laitance, sealers, efflorescence, chemical contaminants, grease, oil and other foreign material must be removed. The prepared surface must be clean, dry and structurally sound. Gulf Coast Paint recommends mechanical preparation by means of shot blasting or diamond grinding to achieve a CSP -2 or CSP -3 profile, in accordance with the International Concrete Re- pair Institute (ICRI). The profile should reflect something similar to a 60-100 grit sandpaper. If the sub- strate is not properly prepared and the appropriate profile is not achieved, failure of the product to adhere to the substrate may occur. Old concrete surfaces must be structurally sound. Any unsound areas must be repaired prior to proceed- ing with the resinous installation. For proper patching and repairing, use CF -615 and/or PC -1000 with graded aggregate. Remove existing paint and loose concrete by rough sanding, sandblasting, high pres- sure water cleaning, shot blasting or grinding. In some cases where plant conditions allow, a stripper may be used to remove excessive build-up of paints or sealers. Coating System The properly sound, cleaned concrete must be primed first with either PC -149, PC -155, or PC -1703 Epoxy Concrete Primer per label instruction. Two coats of CM -15 Epoxy at approximately 5-7 mils dry per coat is recommended for light traffic areas. For heavy forklift and high abrasion areas, CT -352 Polyester Polyure- thane Coating at 2-3 mils dry film thickness is recommended as the top coat over one coat of CM -15 Epoxy. V.O.C. Unthinned Thinned 5% Thinned 10% Thinned 20% 1.34 lbs/g] 1.6 Ibs/gl 1.83 Ibs/gl 2.23 Iba/gl 161 GMS/Liter 192 GMS/Liter 219 GMS/Liter 267 GMS/liter MIXING INSTRUCTIONS Stir each component to a uniform consistency, using a slow speed variable speed explosion proof drill with a Jiffy Mixer. Do not mix by hand. Make sure any pigment settled to the bottom is incorporated. Do not vary proportions. Chemical Mastic CM -15 is prepared by mixing 4 parts base (Part A) to 1 part Hardener (Part B) with a power mixer. CM -15 may be thinned up to 10% by volume for airless spray and up to 20% by volume for conventional spray. When rolling, thin 10-20% by volume. Phone: 251-964-7911 30075 County Rd. 49, Loxley, AL 36551 Fax: 251-964-7918 www.aulfcoastpaint.com a -mall: IntoCa)aulfcoastoaintcom