<https://firstchoicedentalsupplies.com/products/master-dent-zinc-phosphate-cement#product>
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"Master-Dent Dentonics Permanent Zinc Phosphate Dental Cement Kit   The Master-Dent Zinc Phosphate Cement by Dentonics is a very high strength permanent cement (19,000 psi Compressive Strength) representing, perhaps, the oldest and most well accustomed cement still in use. It also provides a good insulating layer against thermal shock.    MFG: 10-000-KY Includes: (1) 32gm Powder, (1) 17.5mL Liquid"
<https://firstchoicedentalsupplies.com/products/master-dent-zinc-phosphate-cement>