Definition of tack coat in English:

tack coat

Syllabification: tack coat


  • (In roadmaking) a thin coating of tar or asphalt applied before a road is paved to form an adhesive bond.
    More example sentences
    • Placement on that half of the intersection was completed when a tack coat was sprayed on to seal the moisture in and prepare for the asphalt placement.
    • Paving equipment on wet tack coat may result in tracking, which typically occurs in the wheel paths.
    • If the surface has been stabilized with an asphalt based dust suppressant a tack coat is not required.

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Word of the day milord
Pronunciation: məˈlôrd
used to address an English nobleman