Solar Mastic
Heavy Duty Self-Priming Roof Coating
Elastek #100 Solar Mastic™ is an extra heavy-duty ultra premium white topcoat for a more reflective, energy-efficient surface. Based on styrenated-acrylic polymers of exceptional durability, Solar Mastic is Elastek’s better quality elastomeric roof coating.
About Solar Mastic
- The favorite among contractors, ideal for virtually flat or sloped roofs. This roof coating may be used on flat, composition roofs; previously coated foam roofs; aged galvanized steel; aged asphalt composition; aluminum-coated roofs; and aluminum surfaces.
- Very high solids content and styrene co-polymer makes coating particularly ponding water-resistant.
- Good elongation for a high-solids coating, exceeds 450%.
- Easy to apply with brush, spray, or roller. See our How To Apply Roof Coatings bulletin. Covers 100 sq. ft./gallon. Two coats recommended for maximum protection. Environmentally safe.




