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HM-146 4x8in Plastic Reusable Concrete Cylinder Molds are 1/4in (6.4mm) heavy-wall plastic for extended use and offer significant cost savings over single-use molds. With proper care, these 4x8in (102x203mm) molds can be used dozens of times. Multi-use Cylinder Saver Liners and Disc Inserts allow easy removal of molded cylinders. A small, user-supplied hand-held air pump can also quickly release specimens. HM-146 molds produce exceptionally consistent specimens and meet requirements of ASTM C470/470M. Molds come in a package of 4, each with a domed plastic lid, liner, and insert. Additional HMA-190 Liners and HMA-191 Disc Inserts are sold separately.
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