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ALPHAMAT
TECHNICAL SPECIFICATIONS
Furnish:
Alpha-cellulose fiber which meets the most stringent standards for
stability and permanence.Tests conducted in accordance with TAPPI
Method T-401 OS-74 indicate the board to be free of groundwood and
lignin.
 PH
Value: An alkaline pH of 8.9
+/-.4 indicated using TAPPI Method T435.
Buffer:
Tests conducted by Atomic Absorption
Spectroscopy reveal a minimum content of 3% Calcium and Magnesium
Carbonate buffers.
Molecular
Traps: Contains molecular traps
synthesized specifically for adsorption of air pollution gases and
degradative by-products of artwork and photographic media.
Color
Fastness: Fade resistance established
using a Carbon Arc type Fade-O-Meter in accordance with ASTM G-25
for 20, 40, 60 and 80 hours. Alphamat colors shifted less than 2.5
points of brightness after exposure.
Bleed
Resistance: No bleed visible
after 48-hour submersion in distilled water.
Resistance
to Aging: Samples tested in
an air circulating oven for 12 days at 100 degrees C and for 10 days
in temperature humidity chamber at 100 degrees F and 90% relative
humidity. All board components remained unchanged in appearance and
strength.
Sizing
& Adhesives: Alkaline-based
sizing is used. Water-based alkaline adhesive with no solvents is
used to adhere component parts of Alphamat boards.
Meets
and exceeds FACTS guide for
mat and mountboards. |
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