Updated: January 2017. Get an INSTANT, detailed estimate of the cost to Apply Slurry Seal! Our free calculator uses up-to-date, trusted data to estimate typical subcontractor costs for a Slurry Seal Coating project. For a basic 500 square feet project in zip code 47474, the benchmark cost to Apply Slurry Seal ranges between $0.47 - $0.77 per square foot* .