$75.38
100 in stock
Product Description: Whip Mix X-20 Chrome Investment is a vastly improved casting investment for making chrome partial denture frameworks. Used for casting any chrome partial alloy. Refractory Cast is hard, strong, and smooth. No danger of breakage or abrasion. Fits master models like gold castings. Sets fast – no tamping required. Controlled expansion with Special Liquid Concentrate. May be used without a metal ring. Mixes easily and produces a cast of unusual smoothness and strength. May be used with any good duplicating material intended for chrome investments. A Special Liquid Concentrate is furnished for pouring the working cast. A 1 to 1 dilution with water gives controlled expansion for most alloys. If more expansion is desired, dilute with less water such as 2 parts liquid to 1 water. Water only is used in mixing the investment for the outer mold or ,ring. Castings are usually made with burn-outs between 730 degrees C and 1,000 degrees C (1,350 degrees F and 1,800 degrees F) although X-20 may be heated to 1,100 degrees C (2,000 degrees F) if required. Features: Phosphate investment for casting partials with chromium dental alloys Sets fast – no tamping required Liquid/Powder Ratio: 11ml/100g (Investing Outer Mold: 13 ml/100g); Working Time: 4-5 minutes (Investing Outer Mold: 5-6 minutes) Setting Expansion: 0.20%; Thermal Expansion (700 1,000 C): 0.90% (Investing Outer Mold: 1.00%) Compressive Strength (Wet): 2,500 psi / 17 MPa (Investing Outer Mold: 1,859 psi / 13MPa); Ready for Separating: 60 minutes (Investing Outer Mold: N/A); Ready for Burnout: N/A (Investing Outer Mold: 2-hours) Quantity: 1pk Size: 15kg
$125.16
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$191.76
$64.49