ࡱ> i !bjbjKK A!\!\y6"6"6"6"6"J"J"J"8"D"J"8fZ#H$^$^$^$%'|'@I8K8K8K8K8K8K8$0:<o86"'%%''o86"6"^$^$48///'j6"^$6"^${7/'I8//:45^$߯SM8(w5g78085.=)j=55=6"5''/'''''o8o8l,X'''8''''='''''''''> : SECTION 07 9200 - JOINT SEALANTS Maintain Section format, including the UH master spec designation and version date in the center columns of the header and footer. Complete the header and footer with Project information. Revise this Section by deleting and inserting text to meet Project-specific requirements. This Section uses the term "Architect" or Engineer. Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions. Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed. Delete hidden text after this Section has been edited for the Project. GENERAL RELATED DOCUMENTS Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section. The Contractor's attention is specifically directed, but not limited, to the following documents for additional requirements: The current version of the Uniform General Conditions for Construction Contracts, State of Texas, available on the web site of the Texas Facilities Commission. The 91Ƶs Supplemental General Conditions and Special Conditions for Construction. SUMMARY Section Includes: Silicone joint sealants. Urethane joint sealants. Latex joint sealants. Acoustical joint sealants. PRECONSTRUCTION TESTING Preconstruction compatibility and adhesion testing in first paragraph below is performed off-site by sealant manufacturer. Tests require many Samples, and some tests require four weeks to complete. If retaining, also retain "Preconstruction compatibility and adhesion test reports" Paragraph in "Informational Submittals" Article. Preconstruction Compatibility and Adhesion Testing: Submit to joint-sealant manufacturers all samples of materials that will contact or affect joint sealants. Use ASTMC1087 manufacturer's standard test method to determine whether priming and other specific joint preparation techniques are required to obtain rapid, optimum adhesion of joint sealants to joint substrates. Testing in paragraph below is performed on-site, either on field-constructed mock-ups or on actual construction, but far enough in advance of sealant work to allow curing of sealants and retesting if necessary. If retaining, also retain "Preconstruction field-adhesion test reports" Paragraph in "Informational Submittals" Article. Preconstruction Field-Adhesion Testing: Before installing sealants, field test their adhesion to Project joint substrates with and without primer. Test joint sealants according to MethodA, Field-Applied Sealant Joint Hand Pull Tab, in AppendixX1 in ASTMC1193 or MethodA, Tail Procedure, in ASTMC1521. Arrange for tests to take place with sealant manufacturers technical representative present. Sealants not evidencing adhesive failure from testing, in absence of other indications of noncompliance with requirements, will be considered satisfactory. Use alternate materials or modify installation procedure, or both, for sealants that fail to adhere to substrates. Report whether sealant failed to adhere to joint substrates or tore cohesively. Include data on pull distance used to test each kind of product and joint substrate. For sealants that fail adhesively, retest until satisfactory adhesion is obtained. ACTION SUBMITTALS Product Data: For each joint-sealant product indicated. Sealant manufacturers literature including written instructions for evaluating, preparing, and treating substrate; technical data including tested physical and performance properties; and installation instructions. Include temperature ranges for storage and application of materials, and special cold-weather application requirements or limitations. SpecData sheet for substrate cleaner and substrate primer recommended by sealant manufacturer for specific substrate surface and conditions. Include Safety Data Sheets (SDS) for information only; safety restrictions are sole responsibility of Contractor. Retain paragraph and associated subparagraphs below if Project is to be LEED v4 certified. LEED Action Submittals (Projects authorized for LEED certification only): Building Product Disclosure and Optimization: Leadership Extraction Practices Extended Producer Responsibility (EPR): Submit documentation indicating that manufacturers have a take back or recycling program for the product purchased. Wood Products: Certified by Forest Stewardship Council or USGBC approved equivalent.  HYPERLINK "http://www.arcomnet.com/sustainable_design.aspx?topic=146" \h Chain-of-Custody Certificates: For certified wood products. Include statement of costs.  HYPERLINK "http://www.arcomnet.com/sustainable_design.aspx?topic=148" \h Chain-of-Custody Qualification Data: For manufacturer and vendor. Provide details of biobased material per Sustainable Agriculture Networks Sustainable Agriculture Standard or USDA certified biobased product. Indicate cost, location of extraction, manufacture, and purchase of material. Recycled Content: For products having recycled content, indicate percentages by weight of post-consumer and pre-consumer recycled content. Include statement indicating costs for each product having recycled content. Sourcing of Raw Materials: For products that are required to comply with requirements for regional materials, indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include statement indicating distance to Project, cost for each regional material and the fraction by weight that is considered regional. Product Certificates: For materials manufactured within 100 miles of Project, indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include distance to Project and cost for each raw material. Indoor Environmental Quality, Low Emitting Materials: Building Products must be tested and compliant with the California Department of Public-Health (CDPH) Standard Method V1.1-2010, using the applicable exposure scenario. Paints, and Coatings: For wet applied on site products, include printed statement of VOC content, showing compliance with the applicable VOC limits of the California Air Resources Board (CARB) 2007, Suggested Control Measure (SCM) for Architectural Coatings, or the South Coast Air Quality Management District (SCAQMD) Rule 1113, effective June 3,-2011. Adhesives and Sealants: For wet applied on site products, submit printed statement showing compliance with the applicable chemical content requirements of SCAQMD Rule 1168, effective July 1, 2005 and rule amendment date of January 7, 2005. Product Data: For installation adhesives, indicating VOC content. Alternative tests for VOC above include ASTM D2369-10; ISO 11890 part 1; ASTM D6886-03; or ISO 11890-2. Methylene Chloride and perchloroethylene may not be added to paints, coating, adhesive or sealants. Composite Wood: Submit documentation showing that wood used in the project has low formaldehyde emissions that meet the California Air Resources Board ATCM for formaldehyde requirements for ultra-low emitting formaldehyde (ULEF) resins or no added formaldehyde resins. Provide General Emissions Evaluation certificates for adhesives, sealants showing compliance with California Department of Public Health v1.1 emissions testing or equivalent. Laboratory Test Reports: For installation adhesives indicating compliance with requirements for low-emitting materials. Samples: For each kind and color of joint sealant required include sealant manufacturers color sample card, either printed or with thin sealant beads, showing range of colors available for each product exposed to view. Joint-Sealant Schedule: Include the following information: Joint-sealant application, joint location, and designation. Joint-sealant manufacturer and product name. Joint-sealant formulation. Joint-sealant color. INFORMATIONAL SUBMITTALS Product test reports. Retain paragraph and associated subparagraphs below if Project is to be LEED v4 certified. LEED Informational Submittals: Building Product Disclosure and Optimization - Sourcing of Raw Materials: Raw Material Sources and Extraction Reporting: Submit Raw materials supplier corporate Sustainability Reports (CSRs); documenting responsible extraction; including extraction locations, long term ecologically responsible land use, commitment to reducing environmental harms from extraction and manufacturing processes, and a commitment to meeting applicable standards or programs that address responsible sourcing criteria Submit manufacturers' self-declared reports Submit third party verified corporate sustainability reports (CSR) using one of the following frameworks" Global Reporting Initiative (GRI) Sustainability Report Organization for Economic Co-operation and Development (OECD) Guidelines for Multinational Enterprises UN Global Compact ISO 26000 USGBC approved program. Building Product Disclosure and Optimization - Material Ingredients Material Ingredient Optimization: Submit manufacturer's Environmental Product Declaration (EPD) or at least one of the following: GreenScreen V1.2 Benchmark: Third party report prepared by a licensed GreenScreen List Translator, or a full GreenScreen Assessment. Cradle to Cradle: Manufacturer's published literature for the product bearing the Cradle to Cradle logo. International Alternative Compliance Path - REACH Optimization Declare: Manufacturer's completed Product Declaration Form Other programs approved by USGBC Product Manufacturer Supply Chain Optimization: Submit documentation from manufacturers for products that go beyond material ingredient optimization as follows: Are sourced from product manufacturers who engage in validated and robust safety, health, hazard, and risk programs which at a minimum document at least 99percent (by weight) of the ingredients used to make the building product or building material, and Are sourced from product manufacturers with independent third party verification of their supply chain that at a minimum verifies: Processes are in place to communicate and transparently prioritize chemical ingredients along the supply chain according to available hazard, exposure and use information to identify those that require more detailed evaluation Processes are in place to identify, document, and communicate information on health, safety and environmental characteristics of chemical ingredients Processes are in place to implement measures to manage the health, safety and environmental hazard and risk of chemical ingredients Processes are in place to optimize health, safety and environmental impacts when designing and improving chemical ingredients Processes are in place to communicate, receive and evaluate chemical ingredient safety and stewardship information along the supply chain Safety and stewardship information about the chemical ingredients is publicly available from all points along the supply chain. Correlate test reports in first two paragraphs below with testing requirements in "Preconstruction Testing" Article. Preconstruction compatibility and adhesion test reports. Preconstruction field-adhesion test reports. Correlate test reports in first paragraph below with testing requirements in "Field Quality Control" Article. Field-adhesion test reports. Warranties. QUALITY ASSURANCE Testing Agency Qualifications: Qualified according to ASTMC1021 to conduct the testing indicated. Installers Qualifications: Experienced firm that has successfully completed sealant work similar in material, design, and extent to that indicated for Project; that is approved, authorized, or licensed by sealant manufacturer to install sealant; and that is eligible to receive sealant manufacturers warranty. Must have successful installations of specified materials in local area in use for minimum of five years. Employ foreman with minimum five years of experience as foreman on similar projects, to be on Site at all times during Work. Do not change foremen during the course of the Project except for reasons beyond the control of the Installer; inform Architect/Engineer in advance of any changes. Compatibility Tests: Include sealant and sealers or coatings that may come into contact with sealant following sealant installation. Mockups: Install ten feet of sealant in each type of joint to verify and set quality standards for materials and installation procedures, and to demonstrate aesthetic effects. Include each type of backing material, sealant, primer and other related products. Mockups shall be accessible or located as indicated by Owners Representative. Notify Owners Representative and Architect/Engineer seven days in advance of date when mockups will be constructed. Preinstallation Conference: Conduct conference at Project site. WARRANTY Special Installer's Warranty: Manufacturer's standard form in which Installer agrees to repair or replace joint sealants that do not comply with performance and other requirements specified in this Section within specified warranty period. Warranty Period: Ten years from date of Substantial Completion. Special Manufacturer's Warranty: Manufacturer's standard form in which joint-sealant manufacturer agrees to furnish joint sealants to repair or replace those that do not comply with performance and other requirements specified in this Section within specified warranty period. Warranty Period: Weather joints, i.e., joints that if failure occurs, will allow water or air infiltration into the building interior: provide 20 years from date of Substantial Completion. Cosmetic joints: provide 10 years from date of Substantial Completion. PRODUCTS MATERIALS, GENERAL VOC Content of Interior Sealants: Sealants and sealant primers used inside the weatherproofing system shall comply with the following limits for VOC content when calculated according to 40CFR59, SubpartD (EPA Method24): Architectural Sealants: 250 g/L. Sealant Primers for Nonporous Substrates: 250 g/L. Sealant Primers for Porous Substrates: 775 g/L. Low-Emitting Interior Sealants: Sealants and sealant primers used inside the weatherproofing system shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." Liquid-Applied Joint Sealants: Comply with ASTMC920 and other requirements indicated for each liquid-applied joint sealant specified, including those referencing ASTMC920 classifications for type, grade, class, and uses related to exposure and joint substrates. Retain subparagraph below if sealants are indicated for UseI. Revise if a liquid other than water is used in testing. Suitability for Immersion in Liquids. Where sealants are indicated for UseI for joints that will be continuously immersed in liquids, provide products that have undergone testing according to ASTMC1247. Liquid used for testing sealants is deionized water, unless otherwise indicated. Stain-Test-Response Characteristics: Where sealants are specified to be nonstaining to porous substrates, provide products that have undergone testing according to ASTMC1248 and have not stained porous joint substrates indicated for Project. Retain paragraph below for applications where sealants will come in contact with food. Indicate on Drawings or by inserts which products must comply with this requirement. Suitability for Contact with Food: Where sealants are indicated for joints that will come in repeated contact with food, provide products that comply with 21CFR177.2600. SILICONE JOINT SEALANTS Coordinate this article with Joint-Sealant Schedule in Part3. If material designation option is retained in paragraph below, insert number to complete designation. If Project contains more than one type of silicone joint sealant, copy and re-edit paragraph for each type required. Neutral-Curing Silicone Joint Sealant: ASTMC920. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following: HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799290&mf=04&src=wd"Dowsil Corporation. HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799292&mf=04&src=wd"GE Advanced Materials - Silicones. HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799303&mf=04&src=wd"Tremco Incorporated. Type: Single component (S). Grade: nonsag (NS). Class: 50. Uses Related to Exposure: Traffic (T) Nontraffic (NT). URETHANE JOINT SEALANTS Coordinate paragraph in this article with Joint-Sealant Schedule in Part3. If material designation option is retained in paragraph below, insert number to complete designation. If Project contains more than one type of urethane joint sealant, copy and re-edit paragraph for each type required. Urethane Joint Sealant: ASTMC920. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following: HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799306&mf=04&src=wd"BASF Building Systems. HYPERLINK "http://www.specagent.com/LookUp/?uid=123456816621&mf=04&src=wd"Sika Corporation; Construction Products Division. HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799319&mf=04&src=wd"Tremco Incorporated. Type: Single component (S) or multicomponent (M). Grade: Pourable (P) or nonsag (NS). Class: 25. Uses Related to Exposure: Traffic (T). LATEX JOINT SEALANTS Coordinate paragraph in this article with Joint-Sealant Schedule in Part3. If material designation option is retained in paragraph below, insert number to complete designation. If Project contains more than one type of latex joint sealant, copy and re-edit paragraph for each type required. Latex Joint Sealant: Acrylic latex or siliconized acrylic latex, ASTMC834, TypeOP, GradeNF. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799322&mf=04&src=wd"BASF Building Systems. Bostik, Inc. HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799329&mf=04&src=wd"Pecora Corporation. ITW Polymers Sealants North America. HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799333&mf=04&src=wd"Tremco Incorporated. BUTYL JOINT SEALANT Butyl-Rubber-Based Joint Sealants: ASTM 1311. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following: Sika Corp Pecora Corporation ACOUSTICAL JOINT SEALANTS Coordinate paragraph in this article with Joint-Sealant Schedule in Part3. If material designation option is retained in paragraph below, insert number to complete designation. If Project contains more than one type of acoustical joint sealant, copy and re-edit paragraph for each type required. Acoustical Joint Sealant: Manufacturer's standard nonsag, paintable, nonstaining latex sealant complying with ASTMC834. Product effectively reduces airborne sound transmission through perimeter joints and openings in building construction as demonstrated by testing representative assemblies according to ASTME90. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to the following: HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799353&mf=04&src=wd"Pecora Corporation. HYPERLINK "http://www.specagent.com/LookUp/?uid=123456799354&mf=04&src=wd"USG Corporation. JOINT SEALANT BACKING Retain one or more of three type options in first paragraph below; if retaining more than one, also retain fourth option. TypeB products include "Sof Rod" by Nomaco and "Sonolastic Soft Backer Rod" by BASF Building Systems. Verify with joint-sealant manufacturers the suitability of each material for sealants selected. TypeO sealant backings, which are open-cell urethane foams, are unsuitable for horizontal surfaces. Cylindrical Sealant Backings: ASTMC1330, TypeC (closed-cell material with a surface skin), TypeO (open-cell material), TypeB (bicellular material with a surface skin), or any of the preceding types, as approved in writing by joint-sealant manufacturer for joint application indicated, and of size and density to control sealant depth and otherwise contribute to producing optimum sealant performance. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer. MISCELLANEOUS MATERIALS Primer: Material recommended by joint-sealant manufacturer where required for adhesion of sealant to joint substrates indicated, as determined from preconstruction joint-sealant-substrate tests and field tests. Cleaners for Nonporous Surfaces: Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials. Masking Tape: Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent to joints. EXECUTION PREPARATION Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to comply with joint-sealant manufacturer's written instructions. Remove laitance and form-release agents from concrete. Clean nonporous joint substrate surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants. Joint Priming: Prime joint substrates where recommended by joint-sealant manufacturer or as indicated by preconstruction joint-sealant-substrate tests or prior experience. Apply primer to comply with joint-sealant manufacturer's written instructions. Confine primers to areas of joint-sealant bond; do not allow spillage or migration onto adjoining surfaces. Masking Tape: Use masking tape where required to prevent contact of sealant or primer with adjoining surfaces that otherwise would be permanently stained or damaged by such contact or by cleaning methods required to remove sealant smears. Remove tape immediately after tooling without disturbing joint seal. INSTALLATION Sealant Installation Standard: Comply with recommendations in ASTMC1193 for use of joint sealants as applicable to materials, applications, and conditions indicated. Install sealant backings of kind indicated to support sealants during application and at position required to produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability. Do not leave gaps between ends of sealant backings. Do not stretch, twist, puncture, or tear sealant backings. Remove absorbent sealant backings that have become wet before sealant application and replace them with dry materials. Retain first paragraph below for sealants installed in moving joints without sealant backings. Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs of joints. Install sealants using proven techniques that comply with the following and at the same time backings are installed: Place sealants so they directly contact and fully wet joint substrates. Completely fill recesses in each joint configuration. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability. Tooling of Nonsag Sealants: Immediately after sealant application and before skinning or curing begins, tool sealants according to requirements specified in subparagraphs below to form smooth, uniform beads of configuration indicated; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of joint. Remove excess sealant from surfaces adjacent to joints. Install sealant slightly below surface. Immediately after sealant application and before skinning or curing begins, tool joint with slightly concave surface, compressing sealant into joint to form smooth, uniform sealant bead; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of joint. Do not use tooling agent. Provide concave joint profile per Figure8A in ASTMC1193, unless otherwise indicated. Retain first paragraph below if acoustical sealants are retained in Part2. Acoustical Sealant Installation: Comply with ASTMC919 and with manufacturer's written recommendations. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur. FIELD QUALITY CONTROL Revise first paragraph below if Owner engages an independent testing agency to perform tests. Testing described below is generally required by sealant manufacturer if warranty is required. Field-Adhesion Testing: Field test joint-sealant adhesion to joint substrates as follows: Extent of Testing: Test completed and cured sealant joints as follows: First two subparagraphs below are examples only. Revise to suit Project. Perform 10 tests for the first 1000 feet (300m) of joint length for each kind of sealant and joint substrate. Perform 1 test for each 1000 feet (300m) of joint length thereafter or 1 test per each floor per elevation. Test Method: Test joint sealants according to MethodA, Field-Applied Sealant Joint Hand Pull Tab, in AppendixX1 in ASTMC1193 or MethodA, Tail Procedure, in ASTMC1521. Evaluation of Field-Adhesion Test Results: Sealants not evidencing adhesive failure from testing or noncompliance with other indicated requirements will be considered satisfactory. Remove sealants that fail to adhere to joint substrates during testing or to comply with other requirements. Retest failed applications until test results prove sealants comply with indicated requirements. JOINT-SEALANT SCHEDULE Joint-sealant applications in this Article represent only a limited number of examples; modify to suit Project. For projects with more than one kind or color of sealant for joint locations listed, copy paragraph and create an additional set of requirements and products for each variation. For each sealant scheduled, retain corresponding product requirements in Part2 that reference sealant standards, specify product properties and, if required, name manufacturers and products. If designations are retained in "Joint-Sealant Application" paragraphs below, insert number to complete designation. Coordinate with designations used on Drawings. Joint-Sealant Application: Exterior joints in horizontal traffic surfaces. Joint Locations: Control and expansion joints in brick pavers. Isolation and contraction joints in cast-in-place concrete slabs. Joints between plant-precast architectural concrete paving units. Joints in stone paving units,including steps. Tile control and expansion joints. Joints between different materials listed above. Other joints as indicated. Joint Sealant: Silicone (Single Component, Pourable, Traffic Grade, Neutral Curing). If retaining material designations in Part 2, insert designation number in first subparagraph below. Joint-Sealant Application: Exterior joints in vertical surfaces and horizontal nontraffic surfaces. Joint Locations: Construction joints in cast-in-place concrete. Joints between plant-precast architectural concrete units. Control and expansion joints in unit masonry. Joints in dimension stone cladding. Joints in glass unit masonry assemblies. Joints in exterior insulation and finish systems. Joints between metal panels. Joints between different materials listed above. Perimeter joints between materials listed above and frames of doors windows and louvers. Control and expansion joints in ceilings and other overhead surfaces. Other joints as indicated. Joint Sealant: Silicone (Single Component, Non-Sag, Neutral Curing, Class 50). Joint-Sealant Application: Interior joints in horizontal traffic surfaces. Joint Locations: Isolation joints in cast-in-place concrete slabs. Control and expansion joints in stone flooring. Control and expansion joints in brick flooring. Control and expansion joints in tile flooring. Other joints as indicated. Joint Sealant: Urethane (Multicomponent, Non-Sag, Traffic Grade, Class 25). If retaining material designations in Part 2, insert designation number in first subparagraph below. Joint-Sealant Application: Interior joints in vertical surfaces and horizontal nontraffic surfaces. Joint Locations: Control and expansion joints on exposed interior surfaces of exterior walls. Perimeter joints of exterior openings where indicated. Tile control and expansion joints. Vertical joints on exposed surfaces of interior unit masonry concrete walls and partitions. Joints on underside of plant-precast structural concrete beams and planks. Perimeter joints between interior wall surfaces and frames of interior doors windows and elevator entrances. Other joints as indicated. Joint Sealant: Latex (Single Component, Non-Sag). If retaining material designations in Part 2, insert designation number in first subparagraph below. Joint-Sealant Application: Mildew-resistant interior joints in vertical surfaces and horizontal nontraffic surfaces. Joint Sealant Location: Joints between plumbing fixtures and adjoining walls, floors, and counters. Tile control and expansion joints where indicated. Other joints as indicated. Joint Sealant: Silicone (Mildew Resistant, Single Component, Acid Curing) If retaining material designations in Part 2, insert designation number in first subparagraph below. Joint-Sealant Application: Interior acoustical joints in vertical surfaces and horizontal nontraffic surfaces. Joint Location: Acoustical joints where indicated. Other joints as indicated. Joint Sealant: Acoustical (Single Component, Non-Sag). CLEANING As sealant Work progresses, clean off excess sealant or sealant smears by methods and with cleaning materials approved in writing by sealant manufacturer and manufacturers of products in which joints occur. Exercise care to avoid scratching or damage to surfaces. At the end of each workday, clean Site and Work areas and place rubbish, empty cans, rags, and other discarded materials in appropriate containers. After completing sealant Work: Repair surfaces stained, marred, or otherwise damaged during sealant Work. Clean up debris and surplus materials and remove from Site. PROTECTION Protect sealant during and after curing period from contact with contaminating substances and from damage, so sealants are without deterioration or damage at time of Substantial Completion. 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