National Gypsum Construction Guide
National Gypsum Construction Guide The entire - AECinfo.com
National Gypsum Construction Guide The entire - AECinfo.com
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Hi-Impact ® BRAND XP Wallboard<br />
DESCRIPTION<br />
Hi-Impact ® BRAND XP Wallboard panels consist of a fire resistant<br />
type X gypsum core encased in heavy, smooth abrasionresistant<br />
mold/mildew-resistant, 100% recycled purple paper<br />
on the face side and heavy mold/mildew resistant liner paper<br />
on the back side. A fiberglass mesh is embedded in the core,<br />
close to the back of the board to provide additional<br />
impact/penetration resistance. Hi-Impact XP Wallboard features<br />
a specially formulated core to provide fire resistance<br />
ratings when used in tested systems in addition to providing<br />
extra protection against mold and mildew compared to<br />
standard wallboard products. Long edges of panels are<br />
tapered. Tapered edges allow joints to be treated in the<br />
normal manner. For optimum mold and mildew resistance,<br />
<strong>National</strong> <strong>Gypsum</strong> recommends ProForm BRAND XP Ready Mix<br />
or ProForm BRAND Sta-Smooth/Sta-Smooth Lite compounds.<br />
TECHNICAL DATA<br />
Surface Abrasion<br />
ASTM – D 4977 (Modified)<br />
5/8" Hi-Impact XP 5/8" Wallboard<br />
with Fiberglass Scrim<br />
Type X<br />
Mean Depth Abrasion 0.015 in. 0.576 in.<br />
Procedure Summary – A sample is laid flat and subjected to 50 abrasion cycles of a wire brush<br />
with additional 25 lbs. weight. The depth of abrasion in three consecutive samples is measured and<br />
reported as a mean depth of abrasion in inches. This test measures the ability of a panel to withstand<br />
surface scuffs and abrasions.<br />
Prison walls have to be strong. And, with Hi-Impact BRAND<br />
XP Wallboard, strong walls can be installed as easily as<br />
regular gypsum wallboard.<br />
Surface Abrasion<br />
ASTM – D 4977(Modified)<br />
Depth of Abrasion (in.)<br />
5/8" Hi-Impact XP<br />
with Fiberglass Scrim<br />
5/8" Wallboard, Type X<br />
Single Drop Soft Body Impact Test – Industry Proposed Standard<br />
ASTM – E 695 (Modified)<br />
5/8" Hi-Impact 5/8" Wallboard<br />
with Fiberglass Scrim Type X<br />
Ft.-Lbs. required to penetrate >540 120<br />
Procedure Summary – This test is conducted with a leather bag loaded with steel pellets to a<br />
weight of 120 lbs. The bag is suspended by a rope and dropped at an angular distance until specimen<br />
is impacted.* In the test the framing collapsed without failure to the Hi-Impact panels.<br />
Surface Indentation Test<br />
ASTM – D 5420 (Gardner Impact)<br />
5/8" Hi-Impact XP 5/8" Wallboard<br />
with Fiberglass Scrim Type X<br />
Mean Depth of indentation 0.114 in. 0.230 in.<br />
Procedure Summary – A sample is laid flat and impacted by a 5/8" hemispherical rod raised to<br />
height that provides 72 in.-lbs. of impact energy. The depth of the indentation is measured from three<br />
board samples and reported as a mean depth of indentation in inches. This test measures the ability<br />
for a panel to resist dents.<br />
Impact Force in ft.-lbs.<br />
600<br />
500<br />
400<br />
300<br />
200<br />
100<br />
Single Drop Soft Body Test<br />
ASTM-E 695 (Modified)<br />
> 540 *<br />
120<br />
0.350<br />
0.300<br />
0.250<br />
0.200<br />
0.150<br />
0.100<br />
0.050<br />
Depth of Indentation (in.)0.400<br />
0.114<br />
Surface Indentation Test<br />
ASTM – D 5420<br />
0.230<br />
0<br />
5/8" Hi-Impact XP<br />
with Fiberglass Scrim<br />
5/8" Wallboard, Type X<br />
0.000<br />
5/8" Hi-Impact XP<br />
with Fiberglass Scrim<br />
5/8" Wallboard, Type X<br />
80 NATIONAL GYPSUM WALLBOARD PRODUCTS
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