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Backstop NT DS455 (, Ski' 's Backstop NT(BSNT)—Texture, Smooth, and Spr83t Usage&A Chilli.fit°' Approx.Coverage Approx.Coverage Per Pail Per Drum 4YxbdorGrade Gypsum Sheathing i. . . '.k d II Joints° BSNT-Texture Trowel 300 lin.ft(91 m) Trowel, FoamPRO#58 Roller° 250-300 ft2(23-28 m2) BSNT-Texture or Texture Sprayer Face' BSNT-Smooth`r 1/2 in(12.7 mm)Nap 500 ft2(46 m2) Roller or Texture Sprayer BSNT-Spray' Airless Spray 500-600 ft2(46-56 m2) 5,000-6,000 ft2(465-557 m2) Fiberglass Faced Exterior Gypsum Sheathing Joints° BSNT-Texture Trowel 300 lin.ft(91 m) Trowel or Texture Sprayer 250-300 ft2(23-28 m2) BSNT-Texture [includes joints] Face' BSNT-Smoothu° 3/4 in(19 mm)Nap Roller or 400 ft2(37 m2) Texture Sprayer BSNT-Spray° Airless Spray 500-600 ft2(46-56 m2) 5,000-6,000 ft2(465557 m2) Exposure 1,Exterior Grade,and Fire Retardant Treated Plywood;and Exleriar.Cement Board Joints° BSNT-Texture Trowel 300 lin.ft(91 m) Trowel,FoamPRO#58 Rolle? 250-300 ft2(23-28 m2)BSNT-Texture or Texture Sprayer Face° BSNT-Smooth 1/2 in(12.7 mm)Nap 400 ft2(37 m2) Roller or Texture Sprayer q. BSNT-Sprayk Airless Spray 500-600 ft2(46-56 m2) 5,000-6,000 ft2(465-557 m2) .'/:k ,'': 'rt iau.ld Oriented Strand Board(OSB) Joints° BSNT-Texture Trowel 300 lin.ft(91 m) BSNT-Smooths 1/2 in(12.7 mm)Nap 350-400 ft2(33-37 m2), Face` Roller or Texture Sprayer applied in 2 coats, BSNT-Spray° Airless Spray backrolled 3,500-4,000 ft2(325-372 m2) Concrete and Masonry°a Trowels 200-250 ft2(19-23 m2)' BSNT-Texture applied in 1 coat FoamPRO#58 Roller 200-250 ft2(19-23 m2)r Face BSNT-Texture applied in 2 coats, or Texture Sprayer _ backrolled BSNT-Spray° Airless Spray 300-500 ft(28-46 m2) 3,000-5,000 ft(279-465 m2) °Tape the joints with Dryvit Grid Tape prior to application of Backstop NT-Texture at joints and screw heads. b Up to 1 pint(16 oz)of water may be added to a 60 lb pail of Backstop NT-Texture for roller or spray applications only.The FoamPRO ""roiier cover(FoamPRO Mfg.,Inc.,www.foampromfg.com)is available at home supply stores. `Because of application methodology and absorptive surface differences,two coats may be required to obtain this coverage. °Due to variations in types of concrete/masonry,apply a 6 ft x 6 ft test area with coverage as Indicated In the chart,before proceeding with the entire job. If there are voids in the substrate,particularly at the mortar joints,the job should be earned with Genesis®,24 hours prior to BSNT-Texture application. Backstop NT shall NOT be used as a skim coat for earning CMU joints or heavy textured units. •Backstop NT-Texture(with up to 1 pint water addition per 60 lb.pail)or Smooth may be sprayed and backtrowelledlbackralled. 'Coverage may vary depending on the texture and porosity of the substrate. Coverage assumes a smooth,dense surface. g Backstop NT should be applied at the recommended coverage rates to form a continuous film free of voids,pinholes or other discontinuities. The following approximate mil thicknesses are recommended: Backstop NT Texture 12 DFT 20"WFT Backstop NT Smooth 12 DFT 20*WFT Backstop NT Spray 9 DFT 15'WET ke 'Based on volume solids Refer to Product Data Sheets for Complete Mixing and Application Instructions 3