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Round 1 Bowling and Amusement 12/09/2024 Paradigm Design <br />Main Place Mall Expansion Grand Rapids, MI <br />Santa Ana, California <br />Project #2309147GR <br />JOINT SEALANTS 07 9200 - 7 <br />c.Unglazed surfaces of ceramic tile. <br />d.Exterior insulation and finish systems. <br />3.Remove laitance and form-release agents from concrete. <br />4.Clean nonporous joint substrate surfaces with chemical cleaners or other means that do not stain, harm <br />substrates, or leave residues capable of interfering with adhesion of joint sealants. Nonporous joint <br />substrates include the following: <br />a.Metal. <br />b.Glass. <br />c.Porcelain enamel. <br />d.Glazed surfaces of ceramic tile. <br />B.Joint Priming: Prime joint substrates where recommended by joint-sealant manufacturer or as indicated by <br />preconstruction joint-sealant-substrate tests or prior experience. Apply primer to comply with joint-sealant <br />manufacturer's written instructions. Confine primers to areas of joint-sealant bond; do not allow spillage or <br />migration onto adjoining surfaces. <br />C.Masking Tape: Use masking tape where required to prevent contact of sealant or primer with adjoining <br />surfaces that otherwise would be permanently stained or damaged by such contact or by cleaning methods <br />required to remove sealant smears. Remove tape immediately after tooling without disturbing joint seal. <br />3.3 INSTALLATION OF JOINT SEALANTS <br />A.General: Comply with joint-sealant manufacturer's written installation instructions for products and <br />applications indicated, unless more stringent requirements apply. <br />B.Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as <br />applicable to materials, applications, and conditions indicated. <br />C.Acoustical Sealant Installation: At sound-rated assemblies and elsewhere as indicated, seal construction at <br />perimeters, behind control joints, and at openings and penetrations with a continuous bead of acoustical <br />sealant. Install acoustical sealant at both faces of partitions at perimeters and through penetrations. Comply <br />with ASTM C 919 and with manufacturer's written recommendations. <br />D.Install sealant backings of kind indicated to support sealants during application and at position required to <br />produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum <br />sealant movement capability. <br />1.Do not leave gaps between ends of sealant backings. <br />2.Do not stretch, twist, puncture, or tear sealant backings. <br />3.Remove absorbent sealant backings that have become wet before sealant application, and replace them <br />with dry materials. <br />E.Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs of <br />joints.