Nyad®

Due to their unique chemistry, needle-like, acicular structure and low loss on ignition (LOI), our Nyad^® wollastonite grades make excellent fluxing agents and frit additives providing a host of benefits in the production of traditional ceramic bodies, glazes and engobes. Nyad^® wollastonites are also both cost-effective and non hazardous reinforcing minerals.

Nyad^® wollastonite is a unique calcium metasillicate (CaS1O3) which acts as a natural frit and fluxing agent in ceramics bodies, glazes and engobes.

Used as a flux in traditional ceramic green bodies, Nyad^® acicular wollastonites are excellent, low LOI replacements for other calcium oxide sources, which:

• reduce firing temperatures and firing cycles, facilitating fast firing and lowering energy consumption and CO₂ emissions
• reduce firing shrinkage
• increase green and fired toughness
• improve thermal stability preventing thermal shock
• speed up drying times

Used as a fluxing agent and frit additive in glazes, Nyad^® is an excellent low LOI source of calcium which:

• improves surface smoothness and transparency
• improves glaze body fit
• reduces pinholes, crawling, crazing and cracking
• maintains high brightness value during firing
• improves thermal stability
• lowers thermal expansion
• reduces vitrification temperature
• boosts melting of other frit components

Used in engobes, our Nyad^® grades

• provide whiteness
• lower opacifier demand
• prevent crawling (drying cracks)
• lower thermal expansion