Best Roof Sealant for Sealing Asphalt Shingles

Waterborne acrylic coatings engineered for asphalt substrates provide exceptional waterproofing and weather resistance. Acrylic formulations like SolarEx 300 form a durable, abrasion-resistant barrier that resists dirt pickup and mildew while repelling moisture. When paired with compatible undercoats or applied across qualifying multi-coat systems, these acrylic topcoats protect asphalt shingles from moisture intrusion, weathering, and severe environmental breakdown over the long term.

Laboratory testing conducted by PRI Asphalt Technologies shows that ShinglEx 800 reduces asphalt shingle granule loss by 88%. By locking the granules onto the asphalt substrate, the acrylic film prevents further erosion from wind, rain, and foot traffic, significantly extending the service life of aging roofs without requiring a full roof tear-off.

Acrylic roof sealants can be applied with standard roofing tools, including commercial airless spray systems, medium-nap paint rollers, or heavy-duty brushes. For spray applications of heavy elastomeric or reflective acrylic coatings like SolarEx 300, contractors typically use airless spray equipment operating at 3,000 PSI or higher to ensure even coverage across all shingle tabs and textured surfaces.

Yes, applying an acrylic shingle sealer like ShinglEx 800 is an effective pre-solar conditioning step. Coating weathered shingles prior to installing solar racking creates a clean, UV-protected, and stabilized roof surface. This ensures the underlying roofing material remains protected from moisture and aging beneath solar panel arrays for years to come.

Products like ShinglEx 800 are available in multiple packaging options, ranging from 5-gallon pails and 55-gallon drums to 180-gallon pallets, 265-gallon totes, and quart samples. Standard color options include Clear, Black, Gray, Brown, Red, Green, and White, with custom color matching available to seamlessly complement existing architectural shingle colors on residential and commercial structures.

Applying a dedicated asphalt shingle sealer or rejuvenator typically costs between 50% and 80% less than a complete roof tear-off and replacement. Depending on bulk container selection and project square footage, material costs remain economical, providing an effective restoration service that delivers extended roof performance at a fraction of capital replacement expenses.