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ASTM C1518-22
Standard Specification for Precured Elastomeric Silicone Joint Sealants
NORMA vydaná dňa 1.6.2022
Informácie o norme:
Označenie normy: ASTM C1518-22
Dátum vydania normy: 1.6.2022
Kód tovaru: NS-1065048
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM C1518-22 :
This specification describes the properties of applied, flat shaped precured elastomeric silicone joint sealants that bridge joint openings and are adhered to joint substrates utilizing a liquid applied silicone adhesive sealant to seal building openings such as panel joints, metal flashing joints, or other building openings in place of conventional liquid applied sealants. Seals are applied in three different configurations, as follows: as a bridge joint, the seal is applied flat on the surface to cover a joint opening; as a beveled bridge joint, the seal is applied on the beveled edge of a substrate to bridge a joint opening.; as a U-joint, the seal is applied in a U-configuration within a joint. Seals are classified into Movement Classes on the basis of movement capability, and Tear Class on the basis of tear propagation. Seals should adhere to specified requirements as to stability, color and texture, application, adhesion and cohesion, and movement, modulus, and tear characteristics.
Keywords:
adhesion, adhesive-sealant, bond-line, elastomeric, joint, precured, precured elastomeric joint sealant, seal, tear,, ICS Number Code 83.060 (Rubber)
Doplňujúce informácie
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1.1?Precured elastomeric silicone joint sealants, hereinafter referred to as seal, are manufactured in flat, cured, extruded shapes and are primarily used to span joint openings in construction. This specification describes the properties of applied, flat shaped precured elastomeric silicone joint sealants, hereinafter referred to as applied seal, that bridge joint openings and are adhered to joint substrates utilizing a liquid applied silicone adhesive sealant, specified by the manufacturer, hereinafter referred to as adhesive to construction substrates, to seal building openings such as panel joints, metal flashing joints, or other building openings in place of conventional liquid applied sealants. 1.2?Seals are applied in three different configurations: 1.2.1?As a bridge joint, the seal is applied flat on the surface to cover a joint opening. See Fig. 1. FIG. 1?Bridge Joint Configuration 1.2.2?As a beveled bridge joint, the seal is applied on the beveled edge of a substrate to bridge a joint opening. See Fig. 2. FIG. 2?Beveled Bridge Joint Configuration 1.2.3?As a U-joint, the seal is applied in a U-configuration within a joint. See Fig. 3. FIG. 3?U-Joint Configuration 1.3?This specification is for a flat extruded shape. 1.4?An applied seal meeting the requirements of this specification shall be designated by the manufacturer as to movement class and tear class as described in Section 5. 1.5?The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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