What emulsion properties determine performance and durability of asphalt emulsion seal coats?

Performance is driven by residual binder content and quality, particle size distribution, viscosity and application workability, breaking and curing behavior, and adhesion to the substrate. Durability depends on residue softness or hardness balance, resistance to water and UV when exposed, and elasticity if movement and cracking are expected. Fillers and fibers affect film thickness and crack bridging but can increase clogging risk. Key measured properties include solids or residue, viscosity at application temperature, storage stability, sieve residue, and residue tests like penetration, softening point, and elastic recovery for modified grades.