ASTM C1178/C1178M-18 PDF Download
Standard EN
Standard Specification for Coated Glass Mat Water-Resistant Gypsum Backing Panel
Also Known As:
The ASTM C1178/C1178M-18 standard is a specification for coated glass mat water-resistant gypsum backing panel. It is specifically designed for use in bath and shower areas as a base for ceramic or plastic tile application on ceilings and walls.
The panel consists of a noncombustible water-resistant gypsum core, which is surfaced with a glass mat partially or completely embedded in the core. It also has a water-resistant coating on one surface.
The standard outlines various tests that the specimens of the coated glass mat water-resistant gypsum backing panel must undergo. These tests include flexural strength, humidified deflection, core hardness, end hardness, edge hardness, nail pull resistance, water resistance, and surface water absorption. These tests ensure that the panel meets the required performance standards.
In addition, the standard emphasizes that the coated glass mat water-resistant gypsum backing panel should have surfaces that are true and free of imperfections that may hinder its intended use.
| Descriptors | water resistance, walls, construction,Ceramic Tiles,Glass Mat Gypsum Panels,Building Design and Construction,Ceilings,Physical Properties,Walls and Wall Assemblies |
| ICS Codes | 91.100.10 - Cement. Gypsum. Lime. Mortar |
| Language(s) | English |
| File Size | 71.7 KB |
