Five Star Special Grout 150 is a sulfate resistant and moderate heat of hydration, cement-based, nonmetallic, nonshrink grout for supporting machinery requiring precision alignment. When tested in accordance with ASTM C 827, Five Star Special Grout 150 shows positive expansion. Five Star Special Grout 150 meets the performance requirements of ASTM C 1107-02 and CRD-C 621-93 specifications for nonshrink grout for Grades A, B and C, over a wide temperature range, 40F to 90F (4C to 32C), and a long working time, 45 minutes.