An anti-
adhesive saw-dust 
molding sand is characterized in that the anti-
adhesive saw-dust 
molding sand is prepared by, by weight, 200-220 parts of 
quartz sand, 30-35 parts of 
bentonite, 40-45 parts of Datong soil, 30-35 parts of 
saw dust, 10-15 parts of rice 
husk meal, 30-35 parts of fangzi soil, 18-25 parts of Longyan soil, 15-20 parts of 
corn flour, 5-6 parts of 
silane coupling agents KH550, 2-3 parts of 
ammonium dihydrogen 
phosphate, 3-4 parts of cotton seed oil and the certain amount of water. By using the 
quartz sand and the 
bentonite and the like to calcinate, calcinate at high temperature and combine and dispersing and 
grinding the fangzi soil and the like, the 
molding sand has excellent smoothness, cohesiveness, 
toughness and 
plasticity, and cohesiveness of the molding sand is improved by 
grinding the 
saw dust, the rice 
husk meal and the 
silane coupling agents KH550. By using the 
saw dust, the 
corn flour and the like, high-temperature collapsibility is improved, and the molding sand is 
pollution-free and low in cost. Besides, the molding sand is anti-
adhesive to cast pieces, causes few peeling of the cast pieces and is good in 
economic benefits.