Properties Standards Values
Compressive Strength-perpendicular to cross section ASTM D1621 386psi
Modulus of Elasticity ASTM D1621 48psi
Compressive Strength-perpendicular to surface ASTM D1623 50.5psi
Modulus of Elasticity ASTM D1621 104 psi
Tensile Strength ASTM D1623 75.3 psi
Shear Strength ASTM 273 53.3 psi
Flexural Strength (1/2") ASTM C203 788 psi
Linear Coefficient of Thermal Expansion ASTM D696 Passed – 0.000029 (29 x 10-6 CTE / ºC)
Passed – 0.000016 (16 x 10-6 CTE / ºF)
Thermal Resistance R-value (1”) ASTM C518 R-4 (hr·ft2·°F) / BTU
Field-Fabricated Tiling Kits IAPMO PS 46-2010 (Modified) Passed
Flange-Fixture Seal IATMO PS-46, Sections 5.0 through 5.1.2.2 Passed all sections
Nail Pull Resistance ASTM C473-10 Wet 313.8 psi / Dry 668 psi
Robinson Floor Test ASTM C627 Extra heavy duty and high impact use
System Anti-Fracture Resistance ANSI A118.12 Passed – No visual defects, no cracks
Water Penetration ASTM E331-09 Passed – No water penetration
Water Vapor Transmission ASTM E96-05 (Procedure E) 1/8” – .494 Perms, 2” – .354 Perms (gr/ft²/hr)
Water Vapor Transmission (VP1 Type) ASTM E96-05 (Procedure E) 1/2” = .008 Perms Perms (gr/ft²/hr)
Freeze & Thaw Resistance ASTM C666-03 (Modified), 25 CYCLES Passed – No Visual Defects
Surface Burning Characteristics ASTM E84-12, Comparable to UL273, ANSI/NFPA No. 255 and UBC No. 8-1 Class A,
Flame Spread 0,
Smoke Developed 70
Flammability NFPA 286 Complies
Flammability 2006 IBC Section 803.2.1 Complies
Flammability 2009 IBC Section 803.1.2 Complies
Flammability NFPA 101 Life Safety Code 2009, Section 10.2.3.7.2 Complies
Flammability 2009 IRC 316.6 Complies
Accelerated Aging AC71, Section 3.5.3 – 25 cycles Passed – No Blistering or Delamination
Capillarity 0
Waterproof ANSI D 4068/ANSI 118.10-2008 Passed
Fungus/Bacteria Resistance ASTM G21 Passed – No growth
Temperature Limits -50 / +75 ºC
-58 / +168°F
Global Warming Impact Index of 1 (no negative impact)