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' <br /> ' 1. Remove al! forei material from 'oint substrates that could interFere with <br /> � J <br /> adhesion of joint sealant, including dust,paints (except for permanent, protective <br /> ' coatings tested and approved for sealant adhesion and compatibility by sealant <br /> manufacturer), old joint sealants, oil, grease, waterproofing, water repellents, <br /> water,surface dirt,aud frost. <br /> ' 2. Remove laitance and form release agents from concrete. <br /> 3. Clean metai, glass, porcelain enamel, glazed surfaces of ceramic tile, and other <br /> nonporous surfaces with chemical clea.uers or other means that do not stain,harm <br /> ' substrates,or leave residues capable of interfering with adhesion of joint sealants. <br /> B. Joint Priming: Prirne joint subshgtes where indicated or where recommended by joint <br /> � sealant manufachuez based on preconstruction joint sealant-substrate tests or prior <br /> experience. Apply primer to comply with joint sealant ananufacfure�'s recommendations. <br /> Confine primers to areas of joint sealant bond; do not a11ow spiliage or migration onto <br /> ' adjoining surfaces. <br /> 3.3 INSTALLATION OF JOINT SEALANTS <br /> ' A. General: Comply with joint sealant manufacturer's printed installation instructions <br /> applicable to products and applications indicated, except where more stringent <br /> requirements apply. . <br /> ' B. Sealant installation Standard: Comply wi#h recommendations of ASTMfiC 1193 for use <br /> of joint sealants as applicable to materials,applications,and conditions indicated. <br /> C. Installation of Sealant Backings: Install sealant backings to comply with the following <br /> � requirements: <br /> 1. Install joint fillers of type indicated to provide support of sealants during <br /> ' application and at posrtion required to produce the cross-sectional shapes and <br /> depths of instaIled sealants relative to joint widths that allow optimum sealant <br /> nnovement capability. <br /> � D. Installation of Sealants: Install sealants by proven techniques that result in sealants <br /> directly con�tacfiing and fully wetting joint substrates, comgleteIy filling recesses provided <br /> for each joint configuration, and praviding uniform, cross-sectional shapes and depths <br /> ' relative to joint widths that allow optimum sealant znovement capability. Install sealants <br /> at the same time sealant backings are installed. <br /> E. Tooling of Nonsag Sealants: Immedisteiy after sealant application and prior to time <br /> ' skinning or curing begins, tool sealants to form smooth, uniform beads of configuration <br /> indicated, to elunina#e air pockets, and to ensure contact and adhesion of sealant with <br /> sides of join� Remove excess sealants from surfaces adjacent to joiut. Do not use <br /> � tooling agents that discolor sealan#s or adjacent surfaces or are not approved by sealant <br /> manufacturer. <br /> ' 1. Provide concave joint configuration per Figure 5A in ASTM�C�.1193, unless <br /> otherwise indicated. <br /> a. Use maskin�tape to protect adjacent sarfaces of recessed tooled joints. <br /> ' 3.4 CLEANING <br /> � THERMAL &MOISTURE PROTECTI4N Page 5 of 6 <br /> � <br />