Casting Sand

Here are the ingredients and properties of Hisago casting silica sand, Da Mon, LS sand, and Wedron.

－Ingredients and properties－

Casting sand	Chemical constituents		Shell strength (2% resin)	Applications
Da Mon silica sand (Vietnam)	Main mineral	Quartz	6～7Mpa	・1 billion tons of accessible mineral and abundant reserves ・Usable for all organic casting ・Proven track record of supplying casting sand ・Can supply at low cost
	SiO2	97.7
	Al2O3	0.9
	Fe2O3	0.2
	Refractoriness	1730℃
LS sand (Japan)	Main mineral	Quartz & feldspar	5-6 Mpa * Grinding products (products planned for development) 8 Mpa	・Newly developed products ・Low expansion sand ・Reliable deposits ・Little burn-in ・Grinding products (planned for development) improved to level of imported products
	SiO2	73.9
	Al2O3	15.7
	Fe2O3Fe2O3	2.6
	Refractoriness	1200℃
Wedron silica sand (USA)	Main mineral	Quartz	12Map	・Round granules with good filling ability ・This is the strongest silica sand produced in Japan, making it possible to reduce resin volume. ・Effective for aluminum collapsibility, gas porosity prevention, etc.
	SiO2	99.4
	Al2O3	0.05
	Fe2O3	0.02
	Refractoriness	1730℃
Ishimi silica sand (Japan)	Main mineral	Quartz	6～7Mpa	・Domestic eminent natural silica sand ・Reliable deposits ・Usable for all organic casting ・Proven track record of supplying casting sand
	SiO2	95.4
	Al2O3	3.1
	Fe2O3	0.2
	Refractoriness	1730℃

－particle size distribution－