https://www.globalgilson.com/soil-compaction-molds Gilson manufactures and stocks a complete selection of compaction molds for soil moisture density (Proctor), California Bearing Ratio (CBR) and Limerock Bearing Ratio (LBR) tests. Rugged steel molds are plated to prevent rusting. Split-type molds spring apart longitudinally for easy sample removal. Less expensive solid molds require use of sample ejectors. All mold sets are furnished with detachable extension collar and base plate. Base, mold and collar components are also available separately. Molds and components are manufactured to the tolerances and specifications of the referenced standards. Soil Density Mold Sets & Components for soil moisture density tests fit the HM-530 Mechanical Soil Compactors, and can also be used with Manu Show more