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Hydrostone TB Gypsum Cement (22.5kg)


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This is one of the hardest and strongest gypsum cements. It is used for producing high-quality novelty and statuary castings requiring extremely hard surfaces. Not suitable for hollow products. Has a high water absorption resistance. Works well in plaster and most flexible moulding compounds.

Slightly higher setting expansion than Hydrocal, but is ideal in case moulds, press and stretch dies.

  • Dry compressive strength 10,000 psi. 
  • Setting Expansion: 0.24%


This item will need to be delivered through COURIER due to Australia Post weight limit being 20kg. Please contact us if uncertain of charges.

Pick up also available



Suited for the castings of hands and feet in alginate, or solid and statuary casts.

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