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t <br /> C. Masking Tape : Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent <br /> to joints. <br /> PART 3 - EXECUTION <br /> z <br /> 3 . 1 EXAMINATION <br /> A. Examine joints indicated to receive joint sealants, with Installer present, for compliance with <br /> requirements for joint configuration, installation tolerances, and other conditions affecting joint-sealant <br /> performance . <br /> B . Proceed with installation only after unsatisfactory conditions have been corrected. <br /> 3 .2 PREPARATION <br /> A. Surface Cleaning of Joints : Clean out joints immediately before installing joint sealants to comply with <br /> joint-sealant manufacturer's written instructions and the following requirements : <br /> 1 . Remove all foreign material from joint substrates that could interfere with adhesion of joint <br /> sealant, including dust, paints (except for permanent, protective coatings tested and approved for <br /> sealant adhesion and compatibility by sealant manufacturer), old joint sealants, oil, grease, <br /> waterproofing, water repellents, water, surface dirt, and frost. <br /> 2 . Clean porous joint substrate surfaces by brushing, grinding, blast cleaning, mechanical abrading, <br /> or a combination of these methods to produce a clean, sound substrate capable of developing <br /> optimum bond with joint sealants. Remove loose particles remaining after cleaning operations <br /> above by vacuuming or blowing out joints with oil-free compressed air. Porous joint substrates <br /> include the following: <br /> a. Concrete. <br /> b . Masonry. <br /> 3 . Remove laitance and form-release agents from concrete. <br /> 4 . Clean nonporous surfaces with chemical cleaners -or other means that do not stain, harm substrates, <br /> or leave residues capable of interfering with adhesion of joint sealants. Nonporous joint substrates <br /> include the following: <br /> a. Metal <br /> b . Porcelain enamel. <br /> C . Glazed surfaces of ceramic tile . <br /> B . Joint Priming : Prime joint substrates, where recommended in writing by joint-sealant manufacturer, <br /> based on preconstruction joint-sealant-substrate tests or prior experience . Apply primer to comply with <br /> joint-sealant manufacturer's written instructions . Confine primers to areas of joint-sealant bond; do not <br /> allow spillage or migration onto adjoining surfaces. <br /> C . Masking Tape : Use masking tape where required to prevent contact of sealant with adjoining surfaces <br /> 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 /> Wabasso Beach Park <br /> Indian River County <br /> DAA Project No . 6008 <br /> 07920 - 5 <br />