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Writing Surface Performance
Characteristics
| Writing |
Superior, low gloss, matte finish readily
accepts chalk, providing a sharp, unbroken line with less pressure
and maximum surface adherence. |
| Visibility |
Contrast/waviness for chalkboards (light
and dark effects) shall be no less than 20 when tested with the contrast
measurement test with 773-gram load on chalk. Resolution (visual acuity)
shall be based on 3 lines per degree and be visibly maintained beyond
the current standard of 3 meters. [Byk-Gardner measuring device] |
| Erasing |
Erases easily with a dry cloth or standard
chalk eraser, retains minimal residual chalk dust, and will not leave
"ghost writing." Color change (dark/light) after chalk erasing is
reduced 60% from traditional surfaces. |
| Cleaning |
WET ghost measurements on chalkboard surfaces
before and after wet cleaning shall not exceed a factor of 0.49. Easily
cleaned with most mild soaps and detergents. Surface not affected
by most strong cleaners and basically non-staining due to non-porous
surface. |
| Wearability |
Vitrified glass-hard ceramic surface fused
to light gauge enameling grade steel at approximately 700°C. High
resistance to impact damage, abrasion, scratching, and color fading. |
| Magnet Capability |
The  surfaces
are ideal for all magnets and magnetic impregnated materials and will
not be scratched or damaged from the contact. |
| Flame Resistant |
The surface
is 100% non-combustible. |
Materials
All ceramicsteel panels will be supplied with Alliance light gauge steel
face. The ceramic finish is fused to the steel sheet at a temperature
of approximately 700° C. for chalkboard
and 800° C. for markerboard.
Finishes
The ceramic finish will consist of a specially formulated glass
substance applied by machine. Base metal will be coiled enameling steel
of an alloy suitable for the application of architectural porcelain, employing
a continuous coil process. Base metal will be properly pre-cleaned and
treated, to ensure complete bond between the steel and the subsequent
ceramic coatings. Both surfaces of steel-based metal will receive a ground
coat of ceramic frit to be fused to the metal in a firing operation used
exclusively for ground coat application to prevent contamination. A color
cover coat of ceramic frit will be applied to one surface of the ground
coat and fused by a firing operation exclusively designed for color applications.
All ceramic coating will be machine applied with automated equipment for
maximum finish uniformity. Firing temperature will range from 700°
C. to 800° C. The gloss of writing surfaces
will not increase by more than three units when subjected to wearability
tests specified in testing.
more info:
color chart
graphs
forever warranty
Clean my Board
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