NO. 10 CLASS “B” (*) CLEAR FIRE RETARDANT PENETRATING WOOD TREATMENT
PRODUCT DESCRIPTION:
No. 10 fire retardant penetrating wood treatment was developed to meet the requirements for a clear fire retardant treatment for EXTERIOR use, on previously unfinished cedar shakes and shingles. It is very effective in reducing the fire hazard of cedar and other edge grain woods. No. 10 contains no water soluble salts, therefore, its fire retarding properties are lasting. Properly treated wood, when subjected to fire, will char.
APPLICATION:
Apply two coats by brush, spray or by dipping. Dipping is the most effective method of treatment for shakes and shingles, as all surfaces are treated. Allow 24 to 48 hours drying time between coats. (See CAUTION). When applying the treatment by dipping, allow sufficient time for penetration of the material. No. 10 should be applied WITHOUT thinning or dilution.
COVERAGE:
150 sq.ft./U.S. gallon [3.7 m²/L], applied in two coats at a rate of 300 sq.ft./U.S. gallon [7.4 m²/L], per coat. NOTE: The surface area of hand split and rough textured materials is GREATER than the apparent square footage of the area, reduce spreading rate to compensate for greater surface area.
CLEAN UP:
Use Xylol, Toluene or Aromatic 100 for cleaning equipment.
WARNING!!!
Adequate ventilation must be provided during and after application, until the coating has dried. Avoid breathing vapors or spray mist.
CAUTION!!!
The liquid coating contains volatile (flammable) solvents. Due care must be exercised during and after application until coating is dry.
MAINTENANCE:
All exterior wood treatments and coatings are subject to deterioration when exposed to weather. In order to insure maximum continued protection, exposed surfaces should be retreated every three to four years. Exposure to strong sunlight will cause the wood to darken due to the nature of the fire retardant ingredients. This darkening in no way affects or impairs the fire retardant qualities of the treatment.
PACKAGING:
Standard packaging, 1 gallon, 5 gallon, and 55 gallon containers.
TEST METHODS: (small scale)
A cedar shingle approximately one foot square was divided in half. One section was treated with two coats of No. 10, at a coverage rate of 300 sq.ft./gallon, per coat. Panels were allowed to dry 72 hours, before fire testing. The panels were placed at a 45° angle for an incline fire test. A Fisher high temperature gas burner, having a flame temperature of 1800F, was placed two inches from the panel surface, and the time of flame exposure measured. The flame was removed at 15 and 30 second intervals, and the time in seconds for the panel surface to self extinguish was recorded.
RESULTS
Flame Exposure
(Seconds)No. 10 Treated Shingle
Time to Self Extinguish
(Seconds)Control
Uncoated Shingles15 1 4 30 2 continuous burning 60 3 90 6 120 15 FIRE TESTS: (full scale)
Flame Spread Rating: Class “B” (*). When applied to No. 1 grade, RED CEDAR SHINGLES and tested in accordance with ASTM E-84, the treatment obtained to following fire hazard classification.
FIRE HAZARD CLASSIFICATION System Details (When applied to Cedar Shingles) Flame Spread Smoke Developed Fuel Contributed Sealer – None Type No. 10 applied
in two coats at 300
sq.ft./U.S. gallon per
coat [7.4 m²/L]35 690 10
(*) Class “B” fire retardant rating per NFPA 703, Section 2-2.1.3
All specifications and suggestions appearing on our labels and in our literature concerning the use of our products are based upon tests and data believed to be reliable. Since the actual use by others is beyond our control, no guarantee, expressed or implied, is made by New York Fire-Shield as to the effects of such use or the results to be obtained.