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Qingdao O.B.T Manufacture Co., Ltd.
Qingdao O.B.T Manufacture Co., Ltd.

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Mullite sand

The mullite has high aluminum content, low iron content, small dust, reasonable particle size distribution, high bulk density, high temperature strength and low residual strength.
Available:10~16 mesh,16~30 mesh,30~60 mesh,60M,70 mesh,100 mesh,200 mesh,325 mesh.other sizes can be customized.
Mainly used in the aluminum smelting industry, refractory materials, precision casting , aluminum silicate refractory fiber and ceramic industry.

Fused Silica Products

Fused Silica Products

Natural high purity quartz its microstructure at high temperature becomes the amorphous structure of the fused silica. 

Is molten particles and silicon powder with high quality fused silica, through special crushing grinding process, the product high purity, controllable particle size distribution. 

The main characteristics of fused silica are:

●High temperature resistance, good whiteness, melting point 1750 ℃.

●Excellent low electrical insulation.

●High hardness, high resistance to wear.

●Low expansion coefficient is low.

●Chemical properties of stability, in addition to react with hydrogen fluoride ether and alkali, does not react with any other material. 

Areas of application:

Photovoltaic materials, electronic materials, refractory materials, investment casting, high voltage electrical insulation materials, paint coating, silicone rubber, special ceramics, advanced materials, fine chemical industry, aerospace and other industries. 

Casting Wax

Our company model waxes are of high quality, non-filled medium temperature wax. The products are widely used in the process precision casting industry, with good formability, suitable for general hardware, pipe valve parts, sewing machine parts, auto parts, golf heads, aerospace blades, turbines, steam turbines, etc. High-quality industrial parts and wax casting of precision casting products.
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