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  1. #1
    Join Date
    Nov 2007
    Location
    Near Rockhampton
    Posts
    270

    Default Sodium Silicate Supplier

    Does anyone know of a source for sodium silicate (water glass) for producing co2 hardened sand cores.
    It is readily available from most pottery supply stores but this doesn't appear to be the right product.

    This site mentions the difference between pottery and foundry grades.

    myfordboy blog and online resources: Core Making

    If anyone has used sodium silicate for core production or knows where to get the right stuff I'd appreciate any advise.

    Thanks

    John

  2. #2
    Join Date
    Nov 2006
    Location
    Darwin HowardSprings
    Age
    52
    Posts
    41

    Default

    I got 2kg bottle of 99.9% powdered sodium silicate off Ebay from Korea

    I havent done it , but Drain'o' / silica gel / water , makes a poor mans water glass ( dip news paper in it , wrap around fencing wire , to make welding rods )
    how come a 10mm peg dont fit in a 10mm hole

  3. #3
    Join Date
    Nov 2007
    Location
    Near Rockhampton
    Posts
    270

    Default

    I ended up getting a 20 L drum of "Sodasil" from Cast Metal Services in Brisbane.
    Much more qty than I needed but the price with freight was reasonable.

    I haven't done much with it yet but early tests look promising.

    John

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