Technical Specifications
PaperStone Certified is made of 100% FSC-Certified recycled paper, water-based phenolic resin with cashew nut shell binder and pigment. Heat and pressure transform this mixture into a thoroughly impregnated network of cellulose fibers that give PaperStone its hardness, density and strength in span or cantilevered designs.
PaperStone Specifications
Water absorption (by weight)
0.82%
Density (g/em3)
1.4-1.45%
Internal bond (psi)
1,225 lbs.
Modulus of rupture (flexibility)
Face
X direction
24,320 psi
Y direction
24,080 psi
Edge
X direction
21,834 psi
Y direction
21,413 psi
Modulus of Elasticity
X direction
1724.25 ksi
Y direction
1666.58 ksi
Compressive strength
Z direction (face)
45,324 psi
X direction
23,200 psi
Y direction
22,560 psi
Coefficient of Thermal Expansion
Z direction
2.62
X direction
3.64
Y direction
3.48
Izod impact strength
Face
X direction (ft/lb/inch-width)
3.29
Y direction (ft/lb/inch-width)
2.76
Edge
X direction (ft/lb/inch-width)
.73
Y direction (ft/lb/inch-width)
.75
Hardness test
Barcole meter (Barber Coleman)
47 avg.
UV exposure
Slight darkening for light colors,
dark colors are stable
Formaldehyde
No detected residues
(less than 1 part per million)
ASTM E84 Fire Test Results
Flamespread Index:
(20) Class A Rating
Smoke Developed Index:
(110) Class A Rating
There are three categories from which to earn LEED points. Materials and Resources specifies from where the materials are obtained, from how far away, and whether they are made of rapidly renewable resources. 
PaperStone qualifies under Indoor Environmental Quality as it does not emit VOC's or formaldeyde. Innovation and Design Process is also an area in which PaperStone may qualify for a LEED point.