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Page 4 of 6 <br /> <br /> <br /> 7. Flame Spread/ NFPA 101 ASTM E-84 Class A <br /> <br /> <br /> <br /> <br /> <br /> C. Topcoat Armor Top <br /> <br /> 1. VOC 0 g/L <br /> 2. 60 Degree Gloss ASTM D523 75+/-5 <br /> 3. Mixed Viscosity, (Brookfield 25oC) 500 cps <br /> 4. Tensile strength, ASTM D 638 7,000 psi <br /> 5. Abrasion Resistance, ASTM D4060 Gloss Satin <br /> CS 17 wheel (1,000 g load) 1,000 cycles 4 8 mg loss with grit <br /> 10 12 mg loss without grit <br /> 6. Pot life @ 70o F 50% RH 2 hours <br /> 7. Full Chemical resistance 7 days <br /> <br />PART 3 – EXECUTION <br /> <br />3.1 EXAMINATION <br /> <br />A. Examine substrates, areas and conditions, with Applicator present, for compliance with requirements <br />for maximum moisture content, installation tolerances and other conditions affecting flooring <br />performance. <br /> <br /> 1. Verify that substrates and conditions are satisfactory for flooring installation and comply with <br />requirements specified. <br /> <br />3.2 PREPARATION <br /> <br />A. General <br /> <br /> 1. New and existing concrete surfaces shall be free of oil, grease, curing compounds, loose particles, <br />moss, <br /> algae growth, laitance, friable matter, dirt, and bituminous products. <br /> 2. Moisture Testing: Perform tests recommended by manufacturer and as follows. <br />. a. Perform anhydrous calcium chloride test ASTM F 1869-98. Application will proceed only <br />when the vapor/moisture emission rates from the slab is less than and not higher than 20 <br />lbs/1,000 sf/24 hrs. <br /> b. Perform relative humidity test using is situ probes, ASTM F 2170. Proceed with installation <br />only after substrates have a maximum 99% relative humidity level measurement. <br /> c. If the vapor drive exceeds 99% relative humidity or 20 lbs/1,000 sf/24 hrs then the Owner <br />and/or Engineer shall be notified and advised of additional cost for the possible installation of <br />a vapor mitigation system that has been approved by the manufacturer or other means to lower <br />the value to the acceptable limit. <br /> 3. Mechanical surface preparation <br />a. Shot blast all surfaces to receive flooring system with a mobile steel shot, dust recycling <br />machine (Blastrac or equal). All surface and embedded accumulations of paint, toppings <br />hardened concrete layers, laitance, power trowel finishes and other similar surface <br />characteristics shall be completely removed leaving a bare concrete surface having a <br />minimum profile of CSP 4-5 as described by the International Concrete Repair Institute. <br />DocuSign Envelope ID: 775B89AF-3514-4D9E-B148-2FDE4EFF16C2