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Hi-Abuse XP Gypsum Board - 16 Pages
| Hi-Impact® XP® Gypsum Board | |||
| Applicable Standards ■ ASTM C 630/C 1396 ■ ASTM C 1629 ■ ASTM C 473 Accessories ■ Fasteners: drywall screws ■ ProForm Joint Tape ■ ProForm XP Ready Mix or ProForm Sta-Smooth /Sta-Smooth Lite Setting Compound ■ Cornerbead, Trims, Casing beads ■ Furring channels ■ E-Z Strip control joints or .093 zinc control joints Installation ■ Installation of Hi-Impact XP Fire-Shield Gypsum Board should be consistent with methods described in Applicable Standards. For best impact performance, use vertical application. ■ Listed impact/penetration ratings apply to walls constructed with Hi-Impact XP Gypsum Board applied with long edges parallel to and centered over minimum 20 gauge framing members spaced a maximum of 16" o.c. ■ Hi-Impact XP Gypsum Board comes standard with GridMarX® guide marks printed on the paper surface. These guide marks align with standard building dimensions and help to quickly identify fastener lines for stud and joist framing. Using GridMarX, accurate cuts can be made without having to draw lines. The use of GridMarX also provides quick identification and uniform nail/screw patterns. ■ GridMarX guide marks run the machine direction of the board at five points in 4" increments. Marks run along the edge in both tapers and at 16", 24" and 32" in the field of the board. The marks cover easily with no bleed-through using standard paint products. | Applicable Standards and References ■ ASTM C 840 ■ Gypsum Association GA-214 ■ Gypsum Association GA-216 ■ National Gypsum Company, Gypsum Construction Guide Finishing/Decoration ■ Tapered edges allow joints to be reinforced with ProForm Joint Tape and concealed with ProForm Ready Mix or setting compounds. ■ For optimum mold and mildew resistance, National Gypsum recommends ProForm XP Ready Mix or ProForm Sta-Smooth/ Sta-Smooth Lite Setting Compounds. ■ For best painting results, all surfaces, including joint compound, should be clean, dust-free and not glossy. To improve fastener and joint concealment, a coat of quality drywall primer is recommended to equalize the porosities between surface paper and joint compound. The selection of a paint to give the specified or desired finish charͭacteristics is the responsibility of the architect or contractor. ■ Hi-Impact XP Gypsum Board that is to have a wall covering applied to it should be prepared and primed as described for painting. ■ Gypsum Associations GA 214, Recommended Specification of Gypsum Board Finish, should be referred to in order to determine the level of finishing needed to assure a surface properly prepared to accept the desired decoration. Technical Data Sizes & Types ■ Thickness: 5/8" Type X (15.9mm) ■ Width: 4'(1219 mm) ■ Lengths: 8' through 12' (2438 mm-3658 mm) ■ Edges: Tapered ■ Weight: 2.7 lbs./sq. ft. | Surface Burning Characteristics ■ ASTM E 84 ■ Flame spread: 15 ■ Smoke developed: 0 Fire resistance ratings represent the results of tests on assemblies made up of specific materials in a specific configuration. When selecting construction designs to meet certain fire resistance requirements, caution must be used to ensure that each component of the assembly is the one specified in the test. Further, precaution should be taken that assembly procedures are in accordance with those of the tested assembly. Water Absorption ■ ASTM C 473 Less than 5% water absorption by weight after 2-hour immersion. Specifications The following paragraphs are for insertion into sections of generic specifications or generic/proprietary specifications covering gypsum wallboard products. The National Gypsum product name follows the generic description in parentheses. Part 2 Products A. Fire, Impact/Penetration and Mold/Mildew/Moisture Resistant Gypsum Board: A gypsum core wall panel with additives to enhance the fire resistance, water resistance, surface indentation resistance, and impact resistance of the core; surfaced with abrasion/mold/ mildew/moisture resistant paper on the front, back and long edges with a fiberglass mesh embedded in the board to enhance impact/ penetration resistance and complying with ASTM C 630 and C 1396, Type X. (Hi-Impact XP Gypsum Board) 1. Thickness: 5/8" 2. Width: 4' 3. Length: 8'through 12' 4. Edges: Tapered 5. Surface Abrasion Resistance: Not greater than 0.009" depth when tested at 50 cycles in accordance with ASTM D 4977, Modified. | 6. Indentation Resistance: Not greater than .114" depth when tested at a impact load of 72 in.-lbs. in accordance with ASTM D 5420. 7. Impact/Penetration Resistance: Not less than 540 ft.-lbs. required to penetrate when tested in accordance with ASTM E 695, Modified. 8. Mold/Mildew Resistance: Panel score of 10 when tested in accordance with ASTM D 3273. Part 3 Execution 3.01 Installation A. General: In accordance with the manufacturer's recommendations, National Gypsum Company, Gypsum Construction Guide. Mold and Mildew Resistance Hi-Impact XP Gypsum Board has been designed to provide extra protection against mold and mildew compared to standard wallboard products. When tested by an independent lab per ASTM D 3273 ("Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber"), Hi-Impact XP Gypsum Board achieved a score of 10, the best possible score for this test. *The use of Hi-Impact XP Gypsum Board in actual installations may not produce the same results as were achieved in controlled, laboratory conditions. No material can be considered "mold proof," nor is it certain that any material will resist mold or mildew indefinitely. When used in conjunction with good design, handling and construction practices, Hi-Impact XP Gypsum Board can provide increased mold resistance versus standard wallboard products. As with any building material, avoiding water exposure during handling, storage and installation and after installation is complete is the best way to avoid the formation of mold or mildew. |
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Hi-Abusf? XP" Gypsum Board -
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® Heavy Abrasion, Mold and Moisture Resistant Face Paper Enhanced Mold and Moisture Resistant Type X Core Hi-Impact ASI*® ... -
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