FireShield® MB
Description
FireShield® MB Elastomeric Roofing Membrane is a water-based, 100%
acrylic that cures to form a seamless rubber membrane. FireShield®
MB, with its patent-pending technology will maintain, or may improve UL rating on
select roofing systems or assemblies.** It is designed to enhance your roof system’s
protective performance by providing unique fire extinguishing properties. Special
fire resistant ingredients in the product react with heat and fire causing a chemical
reaction to occur. A non-combustible carbon char layer is formed that retards flame
propagation by reducing available oxygen. FireShield® MB is listed
by the Cool Roof Rating CouncilSM for solar reflectance and thermal emittance.
Its high reflectivity and thermal emittance will help to reduce heat gain to preserve
the roof substrate, lower interior temperatures and reduce cooling costs. Sprayable,
seamless FireShield® systems install fast, without the tear-off,
staging, and disposal associated with traditional systems. Comprehensive warranties
are available.
Uses
FireShield® MB Elastomeric Roofing Membrane is designed to protect
new BUR and modified bitumen roofs as well as protect and restore metal as a primer
Hypalon®, wood, and concrete. FireShield® MB is formulated
to provide maximum fire protection, increase a roof’s reflectivity and to protect
the roof substrate from harmful ultraviolet rays. It is highly flexible to accommodate
temperature-related expansion and contraction of the roof system, a leading cause
of roof system failure. Substrate shall not pond water for a period longer than
48 hours. Surface must be free of ponding water, ice, snow and debris prior to application.
Do not apply at temperatures below 42°F. Substrate temperatures must be below 120°F
when applying product.
Advantages
- Patent-pending technology can turn virtually any currently UL Classified BUR or
modified bitumen roof system into a UL Class A rated roof**
- Highly reflective and listed by the Cool Roof Rating CouncilSM for solar
reflectance and thermal emittance
- Low VOC, non-flammable, and presents minimal hazard to the applicator or the environment
- Easier to apply than solvent-based systems for asphalt surfaces
- Limited material warranty available for up to 10 years*
- Guarantees available for up to 10 years*
- Available in 5-gallon pails, 55-gallon drums, and bulk totes
For application questions, please contact GAFMC Contractor Services at
1-800-766-3411.
Applicable Standards
ASTM D-412, ASTM D-21-96, ASTM D-1475, ASTM E-1644
Note: Repair leaks promptly to avoid adverse effects, including
mold growth
*See warranties and guarantees for complete coverage and restrictions
**Providing the assembly is UL Listed
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TOPCOAT® FireShield® MB Technical
Data
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Application Rate:
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1.0 to 1.75 gallons/100 sq. ft. per coat
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Application Method:
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Airless sprayer, brush, or roller
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Application Temp (air, surface):
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42°F – 120°F
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Drying Time (75°F, 50% RH):
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Approximately 24 hours per coat
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Wet Mil Thickness:
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(1.0 Gallon/100SF) – 16 wet mils
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Dry Mil Thickness:
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(1.0 Gallon/100SF) – 9 dry mils
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Total Solids (by weight):
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67% ± 2%
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Total Solids (by volume):
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55% ± 2%
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Specific Gravity:
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1.34 ± 0.1
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Weight per Gallon:
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11.2 ± 0.5 lbs
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Viscosity (75°F):
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15,000 ± 2,000 cps
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Tensile Strength:
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100 psi
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Elongation:
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275%
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Initial Reflectivity:
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0.72 (white only)
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Aged Reflectivity:
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0.69 (white only)
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Initial Emissivity:
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0.91 (white only)
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Aged Emissivity:
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0.90, 3 year (white only)
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Initial SRI:
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89 (white only)
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Aged SRI:
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85 (white only)
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Storage:
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Store in well-ventilated area at 50°F to 80°F; protect from freezing
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Shelf Life:
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1 Year
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Clean-up:
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Water before curing
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