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B. Installation of Sealant Backings: <br /> 1. Install joint filler to provide support of sealant during application and at position required to produce the <br /> cross-sectional shape and depth of installed sealant relative to joint width that allows optimum sealant <br /> movement capability. <br /> a. Do not leave gaps between ends of joint fillers. <br /> b. Do not stretch,twist,puncture,or tear joint fillers. <br /> C. Remove fillers which have become wet prior to sealant application and replace with dry materials. <br /> C. Installation of Sealant: <br /> 1. Install sealants by proven techniques that result in direct contact with and full wetting of joint substrates by <br /> joint sealant, completely filling recesses provided and providing uniform cross-sectional shapes and depths <br /> relative to joint widths. <br /> 2. Immediately after sealant application and prior to the skinning or curing begins,tool sealants to form smooth, <br /> uniform beads of configuration indicated, to eliminate air pockets, and to ensure contact and adhesion of <br /> sealant with sides of joint. Remove excess sealant from surfaces adjacent to joint. Do not use tooling agents <br /> which discolor sealants or adjacent surfaces or which are not approved by sealant manufacturer. <br /> 3.03 PROTECTION AND CLEANING <br /> A. Protect joint sealers, during and after curing, from contamination or damage. Cut out and remove damaged or <br /> deteriorated sealers and replace with new materials. <br /> B. Clean excess sealants or sealant smears adjacent to joints as work progresses. <br /> END OF SECTION 07900 <br /> 07900-3 No.99132-CP2 <br />