Road American
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What regulatory and environmental factors drive the shift from coal tar sealers to asphalt emulsions?
Many jurisdictions restrict or ban coal tar based sealers due to concerns about PAHs and runoff to waterways. Asphalt emulsions generally have a lower PAH profile and are easier to position as a safer maintenance coating when agencies prioritize stormwater compliance. Regulations can also target VOC and worker exposure, and emulsions avoid the high solvent content seen in some cutbacks. The shift is often accelerated by municipal procurement rules that favor lower toxicity products and documented SDS compliance.
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