Tin Oxide is expensive, do not waste it by not mixing well

Friday 10th May 2019

This is a cone 04 glaze on a terra cotta body. Two 300-gram test batches were made. Both have 5% tin oxide added. The one on the left was high-speed propeller-mixed for 10 seconds on a closed container. That was not enough, small agglomerates appear as white specks floating in the glass. The one on the right was mixed for 60 seconds. Now the tin particles, which are incredibly small, have been dispersed and can do their job of opacifying the glaze. Notice that 5% is not quite enough, more is needed.

Pages that reference this post in the Digitalfire Reference Database:

Tin Oxide, Propeller Mixer, Opacifier, Opacification

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