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SafeCoat® Latex Fire Retardant Test Results

 

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.
 

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