Material Specifications
The manufacturer warrants the following:
Physical Properties
A. Density: The manufacturer's products are made with high density polyurethane
foam with an
overall density similar to White Pine
Target in place density: 14 pcf
Molded Cord Density: 14 pcf. (ASTM-D1622)
Compression Strength: 310 psi (ASTM-D1621)
Flexural Strength: 700 psi (ASTM-D790)
Shore D Hardness: 37 (ASTM D2240)
The manufacturing process provides a greater skin density than core density
which
increases durability.
B. Surface Properties and
Finishes:
All products are produced incorporating a white or wood color barrier coating.
In addition to this integral barrier coat, all products receive a primer coat
with
built-in UV inhibitors.
The combination of the integral shell-like skin, the barrier coat and the primer
top coat
provides an excellent substrate for durable finishes.
C. Ultra Violet: Ultra Violet rays do not effect properly
coated products.
D. Compressive Strength: Falls within the 300 - 400 P.S.I.
range.
E. Tensile Strength: Falls within the 300 - 400 P.S.I. range.
F. Flexural Strength:
The
degree of flexibility in any given polyurethane product is determined by the
shape
and
size of its cross-section. Due to the inherent flex characteristics of lineal
footage
products, they will follow some
curvature and uneven
surfaces.
G. Moisture Resistance:
The polyurethane
has a closed-cell structure which provides protection from most
solvents and renders it
almost completely moisture resistant.
H. Mildew Resistance:
All
polyurethane products are mold and mildew resistant and cannot be harmed by
termites or other
insects/rodents.
I. Flammability &
Optional Class 1 Fire Rating
All
polyurethane products are combustible when exposed to open flame, as are all
wood
materials unless they have
fire retardants in the mix
Optional Specified
Fire Rating: ASTM-E84 Class 1
UL Class A (class
1) Flame Spread Index 20, Smoke Spread Index 350 to 400
J. Shrinkage:
All
polyurethane materials will expand and contract nominally depending on
environmental factors such as temperature and humidity.
Following the manufacturer's installation instructions and recommended
Adhesive are
provided to best address shrinkage and must be used in order not to
void warranty.
Butt join ends and use the approved adhesive
K. Applied finishing
materials by others.
Do not use solvent
based adhesives or paints due to the chemical reaction between
ArchPolymerTM
and the solvents that will dissolve the material.
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