User manual

Appendix I
ZCast Design Guide - 36
11 Foundry Consumables
You can purchase foundry consumables through a wide offering of vendors. This includes items
such as core wash, pouring sleeves, filters, core paste, etc.
Prominent foundry consumables that are commonly used are:
Ceramic filters – These disposable items are inserted into either the pouring sleeve, or they are
often placed in the drag in a cavity in line with the runner channel.
Core paste
– This liquid material is a refractory that is used to seal the mold halves together.
The net result keeps liquid metal from reaching the outside of the mold, minimizing flash. Core
paste can also be used to ‘glue’ pieces together, such as a sleeve to the mold or mold halves
together.
Core wash – Use core wash to improve surface finish and reduce gassing into the mold cavity.
Graphite paint – Graphite paint is used as a non-stick coating (release) that is applied to
patterns when forming a mold from a pattern.
Green sand or Pepset
™
- Common foundry sand mixed with bonding agent.
Pouring sleeve – The pouring sleeves are essential to any mold design whether they are printed
as part of the mold or inserted as a separate consumable. Sleeves can also double as risers and
provide a reservoir to continuously feed molten metal into the mold cavity.
Companies that market these consumables into the metal casting industry include:
• www.ashland.com
• www.foseco.com
• HA International LLC