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DocuSign Envelope ID: D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> Page 5 of 6 <br /> b. Floor areas inaccessible to the mobile blast machines shall be mechanically abraded to the <br /> same degree of cleanliness, soundness and profile using diamond grinders,needle guns,bush <br /> hammers,or other suitable equipment. <br /> c. Where the perimeter of the substrate to be coated is not adjacent to a wall or curb, a minimum <br /> 1/4 inch <br /> key cut shall be made to properly seat the system,providing a smooth transition between <br /> areas. The <br /> detail cut shall also apply to drain perimeters and expansion joint edges. <br /> d. Cracks and joints(non-moving)greater than 1/8 inch wide are to be chiseled or chipped-out <br /> and repaired per manufacturer's recommendations. <br /> 4. At spalled or worn areas,mechanically remove loose or delaminated concrete to a sound concrete <br /> and <br /> patch per manufactures recommendations. <br /> 3.3 APPLICATION <br /> A. General <br /> 1. The system shall be applied in five distinct steps as listed below: <br /> a. Substrate preparation <br /> b. Topping/overlay application with quartz aggregate broadcast. <br /> c. Resin application with quartz aggregate broadcast. <br /> d. Topcoat application <br /> e. Second topcoat application. <br /> 2. Immediately prior to the application of any component of the system,the surface shall be dry and <br /> any remaining dust or loose particles shall be removed using a vacuum or clean, dry,oil-free <br /> compressed air. <br /> 3. The handling,mixing and addition of components shall be performed in a safe manner to achieve <br /> the desired results in accordance with the Manufacturer's recommendations. <br /> 4. The system shall follow the contour of the substrate unless pitching or other leveling work has <br /> been specified by the Architect. <br /> 5. A neat finish with well-defined boundaries and straight edges shall be provided by the Applicator. <br /> B. Topping <br /> 1. The topping shall be applied as a self-leveling system as specified by the Architect. The topping <br /> shall be applied in one lift with a nominal thickness of 1/8 inch. <br /> 2. The topping shall be comprised of three components, a resin,hardener and filler as supplied by <br /> the Manufacturer. <br /> 3. The hardener shall be added to the resin and thoroughly dispersed by suitably approved <br /> mechanical means. SL Aggregate shall then be added to the catalyzed mixture and mixed in a <br /> manner to achieve a homogenous blend. <br /> 4. The topping shall be applied over horizontal surfaces using 1/2 inch"v"notched squeegee,trowels <br /> or other systems approved by the Manufacturer. <br /> 5. Immediately upon placing,the topping shall be degassed with a loop roller. <br /> 6. Quartz aggregate shall be broadcast to excess into the wet material at the rate of 0.8 lbs/sf. <br /> 7. Allow material to fully cure. Vacuum, sweep and/or blow to remove all loose aggregate. <br /> C. Broadcast <br /> 1. The broadcast coat resin shall be applied at the rate of 90 sf/gal (Q28) or 50 sf/gal (Q 11). <br />