ceramics main

By: Nyco  09-12-2011
Keywords: Ceramics, Chemical Purity

NYCO's wollastonite is used in the manufacture of many ceramic applications iincluding:

Structural Clay Products
  • Brick
  • Sewer pipe
  • Roofing tile
  • Clay floor tile


  • Floor and wall tile
  • Sanitaryware
  • Electrical porcelain
  • Decorative ceramics
  • Dinnerware

Advanced Ceramics

  • Bioceramics
  • Structural zirconia and alumina substrates
  • Complex near net shapes

Benefits of Wollastonite in Ceramics

Wollastonite's unique chemical purity and acicularity (aspect-ratio) make it ideally suited to ceramic applications where shrinkage reduction, increased firing strength, gloss improvement and/or reduced surface defects in glazes is required.

Traditional Ceramics

  • Contributes CaO to glaze formulations without outgassing to improve glaze strength, surface finish and in the right quantity, produces more matte finish in low fired glazes
  • Improved green strength from acicular structure
  • Permits accelerated drying schedules
  • Maintains high brightness value during firing
  • Wollastonite has a low sintering temperature
  • Reduced moisture and expansion by improving drying rates
  • Reduced thermal expansion characteristics
  • NYCO's wollastonice typically has a LOI value of less than 0.5%. during firing, a minimum volume of gas is generated compared to other traditional materials, allowing a smooth surface with diminished pinholing.

 Advanced Ceramics

  • Fine particle size wollastonite (NYAD 5000) acts as a sintering aid which accelerates densification of alumina and zirconia
  • High aspect ratio wollastonite gives reinforcement to near net-shape green structures

Keywords: Ceramics, Chemical Purity

Other products and services from Nyco


plastics main

Benefits of Wollastonite in Plastics Whether you’re designing a new composite, or updating an existing formulation, NYCO’s wollastonite products offer a significant advantage over other fillers and reinforcements. Our wollastonite’s reinforcing needle-like structure, its low hydroabsorptivity, thermal stability and conductivity, low resin demand and chemical purity make it an ideal additive to polymer formulations.


paints main

Our untreated extender grades and unique surface-modified wollastonite have become industry-leading additives in varied liquid and powder coatings as well as paint formulations. It’s hard to imagine a world without color and wollastonite has become a key ingredient in paints and coatings applications. Enhances resistance to brittle failure and film degradation.


metal main

NYCO's wollastonite has found wide acceptance in metallurgical applications.Its chemical purity, non-toxicity, consistent high quality coupled with NYCO's technical advisors and dependable supply make it a natural choice by the steel industry. BenefitsWollastonite is commonly used by the industry for its low temperature fluxing and inclusion modification properties.


construction main

NYCO's wollastonite is used in a growing number of construction applications as a reinforcing additive. NYCO's products are used in a variety of interior and exterior construction applications. Construction material formulations benefit from the wollastonite in the following ways.


friction main

Whether used as a reinforcing additive or as partial/full replacement of asbestos, synthetic materials and chopped or milled glass fibres, our wollastonite can be found in a variety of applications. Our products are commonly used as reinforcing fibres and fillers in friction formulations. NYCO's wollastonite is the next generation of engineered fibres for friction materials.


products main

Whether you're sourcing wollastonite for a new or existing product, our over 50 years of experience in wollastonite is sure to help. At NYCO, we're using this knowledge to continually uncover the potential of this amazing mineral in a world of applications. Place a Request for a technical data sheet, product samples or a price quote by submitting an online form.