|
|
FLAME SPREAD INDEX
Testing was conducted in accordance with the ASTM E84 and CAN4-S102
"Standard Method of Test for Surface Burning Characteristics of Building
Materials and Assemblies". Following is a summary of the results of
those tests.
Material
|
FSR*1
|
SDC*2
|
Douglas Fir Lumber, coated by
SafeCoat Latex
with a single
coat at a rate of 3.7 m2/L |
5 |
5 |
S-P-F Plywood coated by SafeCoat Latex with a single coat at a rate of 3.7m2/L and a
single coat of SafeCoat 725 Overcoat at 7.4m2/L.*3 |
5 |
0 |
Oriented Strand Board 10 mm nominal
thickness, coated by SafeCoat Latex
with a single coat at a rate of 3.7 m2/L. |
10 |
10-25 |
High density polyurethane foam coated
with SafeCoat Latex at 80 ft2/USG |
<25 |
<150 |
*1FSR - flame spread rating
*2SDC - smoke developed classification
*3SafeCoat 725 is not a fire retardant but it is used solely to
change gloss
and scrubability of the SafeCoat Latex |
FLAME RESISTANCE RATING
Testing was conducted in accordance with the
ASTM E-119 "Floor/Open Ceiling Assembly Fire Test" and FPA 251 "Small Scale Test" by Guardian Fire Testing Laboratories Inc. of Buffalo, NY.
Following is a summary of results:
Assembly
|
Time to
Flame-Through
|
NO GYPSUM
2” x 10” nominal SPF floor joists,
16” on centre. 3/4” oriented strand
board, tongue and groove flooring.
Underside assembly coated with 2 coats of SafeCoat Latex at a rate of 7.4 m2/L (300 ft2/gal) each coat. |
46 minutes, 37 seconds |
WITH GYPSUM
2” X 10” nominal SPF floor joists, 16” on centre. 3/4” oriented strand board, tongue and groove flooring.
Ceiling: 5/8” type X gypsum wallboard. Exposed side of
gypsum coated with 2 coats of SafeCoat Latex at a
rate of 7.4m2/L (300 ft2/gal) each coat. |
> 1 hour, 45 minutes*1 |
*1No flame-through. Test terminated due to heavy smoke.
|
|
