Weatherbee, Stephanie

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University of New HampshireUniversity of New Hampshire Scholars' RepositoryDivision 07 – Thermal and Moisture Protection Chapter 5 – Technical Construction andRenovation Standards1-25-2013079200 - Joint SealantsSandra Hickeysandra.hickey@unh.eduFollow this and additional works at: https://scholars.unh.edu/pdch_5_07This Article is brought to you for free and open access by the Chapter 5 – Technical Construction and Renovation Standards at University of NewHampshire Scholars' Repository. It has been accepted for inclusion in Division 07 – Thermal and Moisture Protection by an authorized administratorof University of New Hampshire Scholars' Repository. For more information, please contact nicole.hentz@unh.edu.Recommended CitationHickey, Sandra, "079200 - Joint Sealants" (2013). Division 07 – Thermal and Moisture Protection. 20.https://scholars.unh.edu/pdch_5_07/20UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES January 25, 2013 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS JOINT SEALANTS 07 9200 - 1 SECTION 07 9200 - JOINT SEALANTS 1.1 SUMMARY A. Section Includes: 1. Silicone joint sealants. 2. Urethane joint sealants. 3. Polysulfide joint sealants. 4. Latex joint sealants. 5. Solvent-release-curing joint sealants. 6. Preformed joint sealants. 7. Acoustical joint sealants. 1.2 SUBMITTALS A. LEED Submittal: 1. Product Data for Credit EQ 4.1:  For sealants and sealant primers used inside the weatherproofing system, including printed statement of VOC content. 1.3 MATERIALS, GENERAL A. Compatibility:  Provide joint sealants, backings, and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by joint-sealant manufacturer, based on testing and field experience. B. VOC Content of Interior Sealants:  Provide sealants and sealant primers for use inside the weatherproofing system that comply with the following limits for VOC content when calculated according to 40 CFR 59, Part 59, Subpart D (EPA Method 24): 1. Architectural Sealants:  250 g/L. 2. Sealant Primers for Nonporous Substrates:  250 g/L. 3. Sealant Primers for Porous Substrates:  775 g/L. C. Liquid-Applied Joint Sealants:  Comply with ASTM C 920 and other requirements indicated for each liquid-applied joint sealant specified, including those referencing ASTM C 920 classifications for type, grade, class, and uses related to exposure and joint substrates. 1. Suitability for Immersion in Liquids.  Where sealants are indicated for Use I for joints that will be continuously immersed in liquids, provide products that have undergone testing according to ASTM C 1247.  Liquid used for testing sealants is deionized water, unless otherwise indicated. UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES January 25, 2013 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS JOINT SEALANTS 07 9200 - 2 D. Stain-Test-Response Characteristics:  Where sealants are specified to be nonstaining to porous substrates, provide products that have undergone testing according to ASTM C 1248 and have not stained porous joint substrates indicated for Project. E. Suitability for Contact with Food:  Where sealants are indicated for joints that will come in repeated contact with food, provide products that comply with 21 CFR 177.2600. 1.4 SILICONE JOINT SEALANTS A. Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 100/50, for Use NT. B. Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 50, for Use NT. C. Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 25, for Use NT. D. Single-Component, Nonsag, Acid-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 25, for Use NT. E. Single-Component, Nonsag, Traffic-Grade, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 100/50, for Use T. F. Single-Component, Pourable, Traffic-Grade, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade P, Class 100/50, for Use T. G. Multicomponent, Nonsag, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 50, for Use NT. H. Multicomponent, Pourable, Traffic-Grade, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type M, Grade P, Class 100/50, for Use T. I. Mildew-Resistant, Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 25, for Use NT. J. Mildew-Resistant, Single-Component, Acid-Curing Silicone Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 25, for Use NT. 1.5 URETHANE JOINT SEALANTS A. Single-Component, Nonsag, Urethane Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 100/50, for Use NT. B. Single-Component, Nonsag, Urethane Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 50, for Use NT. C. Single-Component, Nonsag, Urethane Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 25, for Use NT.  UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES January 25, 2013 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS JOINT SEALANTS 07 9200 - 3 D. Single-Component, Nonsag, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920.  Type S, Grade NS, Class 25, for Use T. E. Single-Component, Pourable, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920, Type S, Grade P, Class 25, for Use T. F. Multicomponent, Nonsag, Urethane Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 50, for Use NT. G. Multicomponent, Nonsag, Urethane Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 25, for Use NT. H. Multicomponent, Nonsag, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 50, for Use T. I. Multicomponent, Nonsag, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 25, for Use T. J. Immersible, Single-Component, Nonsag, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 25, for Uses T and I. K. Immersible, Single-Component, Pourable, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920, Type S, Grade P, Class 25, for Uses T and I. L. Immersible Multicomponent, Nonsag, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 25, for Uses T and I. M. Immersible Multicomponent, Pourable, Traffic-Grade, Urethane Joint Sealant:  ASTM C 920.  Type M, Grade P, Class 25, for Use T and I. 1.6 POLYSULFIDE JOINT SEALANTS A. Single-Component, Nonsag, Polysulfide Joint Sealant:  ASTM C 920, Type S, Grade NS, Class 25, for Use NT. B. Multicomponent, Nonsag, Polysulfide Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 25, for Use NT. C. Multicomponent, Nonsag, Traffic-Grade, Polysulfide Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 25, for Use T. D. Multicomponent, Pourable, Traffic-Grade, Polysulfide Joint Sealant:  ASTM C 920, Type M, Grade P, Class 25, for Use T. E. Immersible, Multicomponent Nonsag, Traffic-Grade, Polysulfide Joint Sealant:  ASTM C 920, Type M, Grade NS, Class 25, for Use T and Use I. UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES January 25, 2013 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS JOINT SEALANTS 07 9200 - 4 1.7 LATEX JOINT SEALANTS A. Latex Joint Sealant:  Acrylic latex or siliconized acrylic latex, ASTM C 834, Type OP, Grade NF. 1.8 SOLVENT-RELEASE-CURING JOINT SEALANTS A. Acrylic-Based Joint Sealant:  ASTM C 1311. B. Butyl-Rubber-Based Joint Sealant:  ASTM C 1311. 1.9 PREFORMED JOINT SEALANTS A. Preformed Silicone Joint Sealants:  Manufacturer's standard sealant consisting of precured low-modulus silicone extrusion, in sizes to fit joint widths indicated, combined with a neutral-curing silicone sealant for bonding extrusions to substrates. B. Preformed Foam Joint Sealant:  Manufacturer's standard preformed, precompressed, open-cell foam sealant manufactured from urethane foam with minimum density of 10 lb/cu. ft. (160 kg/cu. m) and impregnated with a nondrying, water-repellent agent.  Factory produce in precompressed sizes in roll or stick form to fit joint widths indicated; coated on one side with a pressure-sensitive adhesive and covered with protective wrapping. 1.10 ACOUSTICAL JOINT SEALANTS A. Acoustical Joint Sealant:  Manufacturer's standard nonsag, paintable, nonstaining latex sealant complying with ASTM C 834.  Product effectively reduces airborne sound transmission through perimeter joints and openings in building construction as demonstrated by testing representative assemblies according to ASTM E 90. 1.11 JOINT SEALANT BACKING A. General:  Provide sealant backings of material that are nonstaining; are compatible with joint substrates, sealants, primers, and other joint fillers; and are approved for applications indicated by sealant manufacturer based on field experience and laboratory testing. 1.12 INSTALLATION OF JOINT SEALANTS A. General:  Comply with joint-sealant manufacturer's written installation instructions for products and applications indicated, unless more stringent requirements apply. B. Sealant Installation Standard:  Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated. UNIVERSITY of  NEW HAMPSHIRE    PLANNING, DESIGN AND CONSTRUCTION GUIDELINES January 25, 2013 CHAPTER 5 – TECHNICAL CONSTRUCTION AND RENOVATION STANDARDS JOINT SEALANTS 07 9200 - 5 C. Acoustical Sealant Installation:  At sound-rated assemblies and elsewhere as indicated, seal construction at perimeters, behind control joints, and at openings and penetrations with a continuous bead of acoustical sealant.  Install acoustical sealant at both faces of partitions at perimeters and through penetrations.  Comply with ASTM C 919 and with manufacturer's written recommendations. END OF SECTION 07 9200 

079200 - Joint Sealants

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079200 - Joint Sealants

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