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Home : Plaster & Gypsum Cement : Hydroperm
 

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1 $48.49
40 $45.62

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Hydroperm 100 Lb (220265)
HYDROPERM® Metal Casting Gypsum Cement is a formulated product incorporating an air-entraining agent to provide permeability. For producing permeable plaster molds to cast many non-ferrous metals and alloys. Packaged in 100 Lb bag.

HYDROPERM® is used to produce permeable plaster molds for casting of many non-ferrous metals and alloys. Properly prepared molds made with HYDROPERM Cement have a permeability range which can be varied and controlled to meet particular requirements of the various non-ferrous metals and have an extremely smooth surface. Just under the surface is a porous structure of small uniform cells that are interconnected. When the mold is dried, they offer channels through which steam or other mold gases may escape during the metal-casting operation.

Consult technical bulletin to obtain proper mixing procedures.

Technical Properties:
Use Consistency (100 parts of water by weight per 100 parts plaster)
Maximum Setting Expansion 0.140%
Density Wet 40.0 lb/ft3
Set Time (Hand Mix) 12 - 19 min.