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Home / Products / Glass / Investments / Glass-Cast™ 965 investment

Glass-Cast™ 965 investment

  • A staple for glass casters

  • A more permeable investment, making it easier to remove from finished pieces

  • Ideal for medium to large size molds

Need assistance with water/powder ratio calculations? Visit: Flask Calculators

Customer Testimonials 


"Great investment plaster for glass. Use this product a lot. No negatives at all."

Harry Messersmith

"Through the recommendation of my good friend Dan Clayman and my own experimentation, I have found that Glass-Cast 965 investment is the perfect investment for capturing the detail I desire in casting lead crystal. I also like how easily it releases from the glass cast surface. As the traits that make Glass-Cast 965 investment desirable for detail and easy divesting slightly compromise its strength, I simply back it up with a reinforcement refractory for larger forms; which works great!"

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