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Opening of Quotes - Olive Street Station Roof Repairs Proj No. 120-028 - Midland Engineering Company, Inc.
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Opening of Quotes - Olive Street Station Roof Repairs Proj No. 120-028 - Midland Engineering Company, Inc.
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8/26/2020 8:48:51 AM
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Board of Public Works
Document Type
Projects
Document Date
8/25/2020
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2.2 ELASTOMERIC SEALANTS <br /> <br />A. <br />indicated complying with ASTM C 920, including specific type, Grade, Class and <br />Uses indicated as well as all other requirements specified. <br />1. Where movement capability exceeding that measured by ASTM C 920 is <br />specified, sealant shall withstand the total movement indicated while <br />remaining in compliance with the other requirements specified when <br />tested in accord with ASTM C 719, with base joint width measured at the <br />time of application. <br />2. <br />3. <br />4. <br /> <br />B. Medium Movement Silicone Sealant: One or two part, non-acid curing, Grade <br />NS, Class 25, Use NT, plus movement capability of more than 25 percent but <br />less than 50 percent in both tension and compression. <br />C. Mildew Resistant Silicone Sealant: One part, Type S, Grade NS, Class 25, Use <br />NT, formulated with fungicide for interior use on non-porous substrates. <br /> <br />D. Silicone Sealant for Use T: One part, non-acid curing, Type S, Grade NS, class <br />25, Use T / Use M, plus movement capability of at least 50 percent in both <br />tension and compression. <br /> <br />E. All Purpose Urethane Sealant: Multi-part, non-sag, Type M, Grade NS, Class 25, <br />Uses NT, M, G and A. <br /> <br />F. Multi-part Pourable urethane Sealant: Type M, Grade P, class 25, Use T. <br /> <br />G. One Part Non-sag urethane Sealant: Type S, Grade NS, Class 25, Use NT. <br /> <br />H. One Part Pourable Urethane Sealant: Type S, Grade P, class 25, Use T. <br /> <br />2.3 SOLVENT RELEASE CURING SEALANTS <br />A. Acrylic Sealant: Non-sag, one-part, solvent release curing; complying with ASTM <br />C 920, Type S, Grade NS, Use NT, with the following exceptions: <br />1. Weight Loss: 15 percent maximum. <br />2. Movement capability: 7-1/2 percent minimum in both tension and <br />compression. <br /> <br />2.4 LATEX SEALANTS <br /> <br />A. Acrylic Latex Emulsion Sealant: One part, non-sag, mildew resistant, paintable; <br />complying with ASTM C 834. <br /> <br />SEALANTS AND CAULKING <br />07920-3 <br /> <br />
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