HL3HS is a surface course for roads subjected to a combination of heavy trucks, buses and car traffic. The mix contains 13mm Clear, 7mm Clear, 4mm Asphalt Sand and Asphalt Cement; the portion of aggregate is derived from 100% crushed Limestone.

HL8HS is a binder course for roads with heavy truck traffic and bus routes. This mix includes19mm Clear, 13mm Clear, 7mm Clear, Asphalt Sand and Asphalt Cement; the portion of aggregate is derived from 100% crushed Limestone.