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Guangdong Well-nanotech Co., Ltd

Chukeng Administration Zone, Dongkeng Town, 523455 Dongguan City, Guangdong
Telephone +86 769 83388091
Fax +86 769 83695138

Hall map

GIFA 2019 hall map (Hall 15): stand A01-09

Fairground map

GIFA 2019 fairground map: Hall 15





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Our range of products

Product categories

  • 06  Moulding sands
  • 06.02  Moulding sand binders
  • 06.02.07  Binders for investment casting

Binders for investment casting

Our products

Product category: Binders for investment casting


Normal series colloidal silica produced by water glass syntheticism, with good stability, low turbidity, small differences between different batches, etc. 
They have been widely exported to Korea, Vietnam, Indonesia, South Africa and other countries, mianly used in precision casting, ceramics polishing, storage battery and coating, etc. 
According to the different particle sizes, they can be devided into small particle size colloidal silica and big particle size colloidal silica.

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Product category: Binders for investment casting

THS-Big Particle

Big particle size series of high purity colloidal silica, produced by controlling the purity of raw materials and adopting special technology with independent intellectual property rights, have the merits of small differences between different batches, controllable particle size, low impurities and good stability, etc.

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Product category: Binders for investment casting


TPS series CMP slurry, colloidal silica as mainly abrasive, have the advantages of uniform particle size, good dispersity, fast polishing speed and good surface quality, which can meet the requirements in industry of Ultra-precision finishing for various material surfaces.
Nowadays, it has been widely used in surface thined and polished of sapphire, ceramics, metal and silica wafer, etc.
Mixing with water according to different production technology is available.

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About us

Company portrait

Guangdong Well-nanotech co., ltd is the transformational, upgraded and world-oriented branch of Guangdong Well-silicasol co., ltd which is a leading supplier of colloidal silica in China established in 1998 with 6 production bases. By virtue of strong research and development strength, persistent scientific research investment and deep cooperation with China famous universities, Well-nanotech focus on researching and developing, producing and marketing high purity colloidal silica and CMP slurry, customizing special colloidal silica and extension products for worldwide partners. Our high quality HS-normal series, THS-high purity series, TGS-modified series colloidal silica and TPS-CMP slurry as well as our superior, efficient and personalized services are utilized in a variety of industries such as precision casting, ceramic, papemaking, coating, catalysts, battery, food, grinding and polishing, etc.