Best Roof Sealants for Shingles

Water-based acrylic sealers and elastomeric coatings are commonly used for asphalt shingles. Formulations such as ShinglEx 800 provide granule loss protection and UV resistance without solvent damage. If applying silicone systems, an acrylic bleed-blocking primer like BleedEx 400 is recommended first to prevent asphalt bleed-through into the topcoat while maintaining proper adhesion across the roof surface.

Yes, specialized acrylic sealers are engineered specifically to lock existing granules into place. In laboratory testing conducted by PRI Asphalt Technologies, ShinglEx 800 demonstrated 88% less granule loss. The waterborne acrylic film reinforces weathered surfaces, slows sun-induced aging, and provides a mildew-resistant barrier that helps prolong the usable life of asphalt shingle roofing.

Applying ShinglEx 800 serves as an economical restoration alternative for aging asphalt shingle roofs showing early granule loss. The treatment costs typically 50% to 80% less than a complete roof replacement. It rejuvenates weathered shingle surfaces, restores color appearance, and protects against ultraviolet aging, delaying the expense and disruption of a structural tear-off.

Silicone coatings like SiliconEx 500 can be used over asphalt substrates when paired with an appropriate primer. An acrylic bleed-blocking primer such as BleedEx 400 should be applied beforehand to prevent asphalt bleed-through into the silicone topcoat. This system provides permanent ponding water resistance, seamless waterproofing, and high solar reflectivity on compatible roof surfaces.

Warranty terms vary by product and coating system. For instance, ShinglEx 800 offers a 7-year material warranty on qualifying two-coat systems applied to asphalt shingles. Complete multi-layer restoration assemblies using elastomeric basecoats or high-performance silicone topcoats offer manufacturer material warranties extending up to 10, 15, or 20 years depending on system configuration.

Shingle roof sealants and coatings are designed for straightforward contractor or DIY application. Products such as ShinglEx 800 and SealEx 100 can be applied using a standard brush, roller, or airless sprayer. For high-volume projects, airless spray equipment operating at 3,000 PSI or higher allows rapid, even coverage across residential and commercial roof surfaces.