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Silicates are used as binders to form molds and cores from sand, into which molten metal is poured. Sugars, carbohydrates and/or surfactants are usually added to the silicate to improve shakeout (removal of metal part from mold) and to obtain better sand reclamation. Silicates are mixed with sands and reacted with either CO2 gas or esters to set (acid-set systems). Silicates have these advantages:
Quick, strong set with easy-to-handle materials
Low VOCs during setting and pouring of metal
Work with a variety of sand types and metals
Easy storage and cleanup of materials
The most environmentally friendly system available
Application
Foundry molds and cores
Recommended Products
Sodium Silicate Liquids
Recommended Literature
Bonding and Coating Applications of PQ Soluble Silicates, Bulletin 12-31
Please contact
Technical Service more information
on this application.
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