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DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> SECTION 07 90 00 -JOINT PROTECTION <br /> 1. Place sealants so they directly contact and fully wet joint substrates. <br /> 2. Completely fill recesses provided for each joint configuration. <br /> 3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant <br /> movement capability. <br /> F. Tooling of Nonsag Sealants: Immediately after sealant application and before skinning or curing begins, tool sealants <br /> according to requirements specified below to form smooth, uniform beads of configuration indicated; to eliminate air <br /> pockets;and to ensure contact and adhesion of sealant with sides of joint. <br /> 1. Remove excess sealants from surfaces adjacent to joint. <br /> 2. Use tooling agents that are approved in writing by sealant manufacturer and that do not discolor sealants or <br /> adjacent surfaces. <br /> 3. Provide concave joint configuration per Figure 5A in ASTM C 1193, unless otherwise indicated. <br /> 3.4 CLEANING <br /> A. Clean off excess sealants or sealant smears adjacent to joints as the Work progresses by methods and with cleaning <br /> materials approved in writing by manufacturers of joint sealants and of products in which joints occur. <br /> 3.5 PROTECTION <br /> A. Protectjoint sealants during and after curing period from contact with contaminating substances and from damage resulting <br /> from construction operations or other causes so sealants are without deterioration or damage at time of Substantial <br /> Completion. If,despite such protection,damage or deterioration occurs,cut out and remove damaged or deteriorated joint <br /> sealants immediately so installations with repaired areas are indistinguishable from the original work. <br /> 3.6 ELASTOMERIC JOINT-SEALANT SCHEDULE <br /> A. At glass-to-metal,metal-to-metal,and metal-to-masonry. <br /> 1. Medium-Modulus Neutral-Curing Silicone Sealant <br /> 2. Products: Provide one of the following: <br /> a. 756 H.P.; Dow Corning. <br /> b. Silglaze II; GE Silicones. <br /> c. Spectrum 2; Tremco. <br /> d. Pecora Corporation. <br /> 3. Type and Grade: S (single component)and NS (nonsag). <br /> 4. Class:25. <br /> 5. Additional Movement Capability: 50 percent movement in extension and 50 percent movement in compression <br /> for a total of 100 percent movement. <br /> 6. Uses Related to Exposure: NT(nontraffic). <br /> 7. Uses Related to Joint Substrates: M, G,A, and, as applicable to joint substrates indicated, O. <br /> a. Use O Joint Substrates:Aluminum coated with a high-performance coating and glass. <br /> 8. Sealant Colors:As selected by Architect from manufacturer's full range of color. <br /> 3.7 LATEX JOINT-SEALANT SCHEDULE <br /> A. Interior non-movement painted joints <br /> 1. Latex Sealant: <br /> 2. Products: Provide one of the following: <br /> a. Chem-Calk 600; Bostik Inc. <br /> b. NuFlex 330; NUCO Industries, Inc. <br /> c. LC 160 All Purpose Acrylic Caulk; Ohio Sealants, Inc. <br /> d. AC-20; Pecora Corporation. <br /> e. PSI-701; Polymeric Systems, Inc. <br /> f. Sonolac; Sonneborn Building Products Div., ChemRex, Inc. <br /> g. Tremflex 834;Tremco. <br /> 3. Applications: Interior, paintable non-movement joints not subjected to temperature change or differential <br /> movement of materials. <br /> END OF SECTION 07 90 00 <br /> ©BOOMERANG DESIGN 07 90 00-4 510 Meadowlands Drive,Hillsborough,NC <br /> BD#1835 ORANGE COUNTY,NC 12/07/2018 <br />