FoundryGeneral® Foundry Core Paste 1000 is a ready to use air drying paste that is silica free. It is ideal for automatic dispensing paste that is silica free. It is ideal for automatic dispensing systems since it does not contain material that will abrade or wear out the equipment.
FoundryGeneral® No Bake Core Paste 1000 penetrates into the sand
matrix to form a strong bond and is primarily used with no bake systems,
but can also be used with core oil, hot box and cold box systems. Once
completely dry, an inorganic bond is formed which produces very little if
any gas evolution on pouring. The set time can be reduced by heating
the joining surface to about 250 °F
In the No Bake or Air Set Process, molds/cores are produced using a resin bonded air setting sand. These molds/cores are allowed to harden under normal atmospheric conditions. Quite often these molds/cores are broken or are actually sectional cores and as such require Core Paste to join the pieces together. Water based, silica free products are available for this need. If a faster drying time is required, solvent based products are also available.
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