ultracal 30

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  1. helix_3

    Hydrostone/ Hydrocal/ Gypsum cement quick dry technique?

    I'm making a few items out of Hydrostone, and I want them done and dry as quickly as possible. The TDS says, "The maximum temperature at which HYDRO-STONE Gypsum Cement casts are safe from calcination is 120 °F (49 °C).With substantial free water in the cast piece, higher drying temperatures...
    • helix_3
    • Thread
    • gypsum cement hydrostone ultracal ultracal 30
    • Replies: 3
    • Forum: Replica Props

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