New Zealand Kaolin is considered to be the whitest kaolin sold globally. In porcealin bodies, it fires whiter and more translucent than bodies made with grolleg. However, it is a less plastic material and makes a less vitreous clay body than grolleg.
In glazes, New Zealand Kaolin will suspend and dry harden slurries. It produces very clear glazes because of chemical composition. This material is very sticky in clay bodies and glazes. In glazes, it is important to sieve the slurry made with NZK to properly disperse the clumps of material that will be made.
Information gathered from Digitalfire Ceramic Materials Database.
