Hi-Core® XL Sheets “Sign Grade”
Matra Plast Industries, Inc. has developed the “Sign
Grade” XL sheets as the obvious choice for exceptional
performance as faces in illuminated signs where cost, performance
and quality are all deciding factors. The extruded twin-wall
profile provides for cost-effective, lightweight strength.
Hi-Core® Sign Grade XL sheets are made from a proprietary
polymer alloy formulated for physical and environmental toughness.
The sheets are backed by a 10-year limited warranty.
Notable Properties:
Excellent chemical resistance.
-
High performance
Ultra-Violet protection.
-
Excellent impact resistance.
-
Wide
temperature range without use constraints: -4º F
to 135º F (-20°C to +57°C) (ISO 75)
-
Lightweight
and rigid.
-
Offers uniform diffused light transmission
to reduce hot spots from lighting.
-
Easy to decorate,
handle and install.
-
Unaffected by water, weather
and oxidation.
-
Easily
used as a replacement in all styles of signs.
-
Can
be cold formed to a radius or crease bent to a corner.
-
An
excellent thermal and electrical insulator.
-
Very
good impact resistance even at low temperatures.
-
Excellent
abrasion resistance.
-
Can be easily die-cut to
complex shapes or letters.
Specifications:
| Sheet widths |
48" (1220mm), 72" (1830mm), 80" (2030mm) |
| Sheet lengths |
8 ft (2440mm) to 50 ft (15,240mm) (Subject
to available tansportation restrictions) |
| Thickness |
4mm |
6mm |
8mm |
| Light Transmission |
Sign White |
30% |
30% |
30% |
Natural Trans |
85% |
80% |
77% |
| Sheets can be cold bent on site in the length
of flute direction to these minimum radiuses: |
| Cold Bend Radius |
24" |
36" |
48" |
| Thermal Expansion: Temperature Range Coefficient
of Linear Thermal Expansion (mm/mm/° C x 10-5) |
| |
-30° C to 0° C - 12 |
0° C to 30° C - 14 |
30° C to 60° C -21 |
| As a general rule, allow 1/8" per foot (10mm
per m) of length or width for expansion at average temperatures. |
| Water vapour absorption: 24 hours - 0.03%,
6 months - 0.06% |
Resistance:
Hi-Core® Sign Grade XL sheets are very resistant
to many common chemicals. The following are considered safe:
Most Aqueous Acids, Ethylene Glycol,
Plating Solution, Hydrogen Peroxide, Transformer Oil, Alcohol,
Liquid Ammonia, Most Aqueous Alkalis, Lubricating Oil, Vinegar,
Most Detergents,
Methyl Ethyl Ketone (MEK), Acetone, Caustic Potash
These chemicals need some caution:
100% Benzene, Bromine, 50% Nitric Acid, Chloroform, Chlorine
Gas, Perchloroethylene,100% Sulphuric Acid, Turpentine, Toluene |
