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	The mineral composition is stable, high silicon dioxide content, high refractoriness, small angular coefficient, good roundness, low mud content surface leveling, low acid consumption, low micro powder content. 
	  
	
		
			| 
					Technical 
					Parameters | 
					Mud content | 
					≤0.30% |  
			| 
					Loss on ignition | 
					≤0.30%  |  
			| 
					Refractoriness | 
					>1550℃ |  
			| 
					Angular coefficient | 
					≤1.25 |  
			| 
					Acid consumption | 
					≤5ml |  
			| 
					Silica content | 
					≥92% | 
					≥92% | 
					≥90% |  
			| 
					Water content | 
					≤0.30%(by customer ask≤0.15%) |  
			| 
					3 sieve concentration ratio | 
					≥80% |  
			| 
					AFS | 
					38-48 | 
					48-58 | 
					68-8 |  
			| 
					Directions | 
					According to casting characteristics are used. |  
			| 
					Applications | 
					With silica, iron castings, small and medium sized steel casting nonferrous metal casting, resin, the original sand of resin sand. |  
			| 
					Remarks | 
					Water proof and moisture proof. |  
			| 
					Ingredients | 
					Chemical composition: silicon dioxide, ferric oxide, aluminum oxide calcium oxide, magnesium oxide |  
			| 
					Packages | 
					Container:1.5ton, 1ton, 50kg |  |  |