Mascoat WeatherBloc-IC Thermal Insulating Coating
Technical Data
- CONTAINER SIZE: 5 Gallons
- COMPONENTS: One-part (inclusive)
- COAT THICKNESS: 20 mils (0.5 mm) dry
- COVERAGE PER GALLON: 47–52 ft2 at 20 mils (1.22 m2 at 0.5 mm)
- WEIGHT: 6.4 lbs/gallon (0.74 kg/liter)
- VOLUME SOLIDS: 70–72%
- COLOR: White. Custom tinting with minimum quantity ordered.
- SHEEN: Flat
- BASE: Water-based acrylic
- CHLORIDES: Low to none
- VOC CONTENT: 0.05 lbs/gallon (5.9 grams/liter)
- ELONGATION: Above 600%
- ACCELERATED AGING: Excellent (2,000+ hours)
- ABRASION RESISTANCE: Moderate to high
- THERMAL EMITTANCE: 0.86
- SOLAR REFLECTIVITY: 0.84
- TRANSMITTANCE: 0.0
- EMMISIVITY/ABSORPTANCE: 0.16
- UV REFLECTION: 100%
- FLAME SPREAD: Class A
- SMOKE DEVELOPED: Class A
- FIRE RATING: Class A
- APPLICATION TEMPS: 50–190˚F (10–88˚C)
- OPERATION TEMPS: -40–200˚F (-4–93˚C)
- TOPCOATING: Please contact Mascoat.
- APPLICATION METHOD: Airless sprayer
Ceramic Exterior Roof Coatings

Developed to improve energy efficiency and save on utility bills, Mascoat WeatherBloc-IC is a proven insulation solution for commercial and industrial properties worldwide. Our WeatherBloc product line combines thermal insulation with a durable reflective paint, so it’s easy to apply and requires little maintenance.
WeatherBloc-IC contains
high-quality ceramic and silica particles encased in a high-grade latex
emulsion. The result? A spray-on insulating coating that reduces radiative and conducted heat to produce dramatic temperature differentials. Each
radiant barrier insulation product goes on like paint, and unlike reflective roof/sidewall
coatings, it can be used underneath or on top of walls and roofs. When used on substrate
exteriors, WeatherBloc-IC resists weathering, reduces condensation and lasts
for years without reapplication.
Manufactured from the best raw materials, WeatherBloc’s thermal formulation attacks heat and cold penetration prior to substrate entry. This prevents unwanted thermal transfer before it leads to manufacturing inefficiency and energy waste.

The WeatherBloc product line is an ideal replacement or supplement for conventional blanket insulation, and additional benefits include:
- Reduction or elimination of condensation under insulation (CUI)
- Superior moisture protection and heat dissipation
- Proprietary cross-linking structure (CLS) that strengthens coating over time
- Crack-free coating flexibility that responds to substrate contraction/expansion
- Application versatility ideal for wood, concrete, brick, metal and other substrates
- Cost-saving longevity

Tested in a variety of unforgiving environments, the Mascoat WeatherBloc product family exceeds ASTM standards for weatherability, adhesion, flexibility and UV resistance. Contact us to inquire about the best product for your unique application needs, or to learn more about Mascoat’s trusted history.
