Use and Care Guide

ToughRock
®
Gypsum Products
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8
ToughRock
®
Mold-Guard
™
Gypsum Board Physical Properties
Properties ASTM
Test
Method
1/2” ToughRock
®
Mold-Guard
™
Gypsum Board
5/8” ToughRock
®
Fireguard X
®
Mold-Guard
™
Gypsum Board
5/8” ToughRock
®
Fireguard X
®
Mold-
Guard™ Abuse-Resistant
Gypsum Board
Thickness
2
, nominal inches (mm)
± 1/64” (0.4 mm)
C473 B
1/2 (12.7) 5/8 (15.9) 5/8 (15.9)
Width
2
, nominal inches (mm)
- 3/32” (2.4 mm)
48 (1219)
48 (1219)
54 (1372)
48 (1219)
Length, standard feet (mm)
± 1/4” (6.4 mm)
8 (2438) to 16 (4876) 8 (2438) to 14 (4267)
8 (2438 mm) to
12 (3658 mm)
Edges
2
Tapered, square, or
tapered with round edges
Tapered, square, or
tapered with round edges
Tapered edge
Surfacing 100% recycled paper
face, back and long edges
100% recycled paper
face, back and long edges
100% recycled paper face,
back and long edges
Packaging Two pieces per
bundle, face-to-face
and end taped
Two pieces per
bundle, face-to-face
and end taped
Two pieces per
bundle, face-to-face
and end taped
Flexural
Strength,
2
min.
Parallel,
lbf. (N)
C473 B
≥ 36 (160) ≥ 46 (205) ≥ 46 (205)
Perpendicular,
lbf. (N)
C473 B
≥ 107 (476) ≥ 147 (654) ≥ 147 (654)
R Value
1
, ft
2
•
°F
•
hr/BTU (m
2
•
K/W)
C177
at 75°F
0.45 (0.08) 0.56 est. (0.10) 0.56 est. (0.10)
Nail pull resistance,
2
Min., lbf. (N)
C473 B ≥77 (343) ≥87 (387) ≥87 (387)
Hardness,
2
lbf. (N)
(core edge and end)
C473 B ≥15 (67) ≥15 (67) ≥15 (67)
Humidified Deflection
2
C473 B
10/8” (32 mm) 5/8” (16 mm) 5/8” (16 mm)
Surface Burning
Characteristics
3
(per ASTM E84)
Flame Spread
E84
15 15 15
Smoke Developed
E84
000
Non Combustibility
E136
Pass Pass Pass
1
Per Gypsum Association document GA-235.
2
Specified minimum values are as defined in ASTM C1396.
3
Products qualify for NFPA Class A or IBC Class 1.