The purpose of Sealer/Rejuvenators are to:
Shield the asphalt from sunlight (UV rays)
Provide resistance to gasoline and other petroleum products
Reduce the viscosity of the asphalt
Restore the asphalt's flexibility
Increase the binder quality of the asphalt
Click on links below for Sealer details: FAA Engineering Brief 44 for Coal-Tar Sealer Rejuvenator Sealer Types - Benefits and Costs CBRT-S0 Asphalt Sealer
Click on links below for Sealer details:
FAA Engineering Brief 44 for Coal-Tar Sealer Rejuvenator
Sealer Types - Benefits and Costs
CBRT-S0 Asphalt Sealer