Natas Setiabudhi Posted February 11, 2012 Report Share Posted February 11, 2012 Hi everybody I just wonder what are the differences between titan oxide and rutile iin clay body and glazes? The effect, the amount, the character, etc. I really appreciate for replying. Link to comment Share on other sites More sharing options...
neilestrick Posted February 11, 2012 Report Share Posted February 11, 2012 Generally, Titatium Dioxide would be used as an opacifier, but doesn't work as well as Tin or Zircon-based opacifiers. Rutile is typically used as a colorant, for buttery yellow colors in oxidation, and sometimes grey in reduction. The greatest benefit of both is that they tend to grow crystals in glazes, which is a good way to create matteness, or just add interest to an otherwise boring glaze. Link to comment Share on other sites More sharing options...
Natas Setiabudhi Posted February 13, 2012 Author Report Share Posted February 13, 2012 Generally, Titatium Dioxide would be used as an opacifier, but doesn't work as well as Tin or Zircon-based opacifiers. Rutile is typically used as a colorant, for buttery yellow colors in oxidation, and sometimes grey in reduction. The greatest benefit of both is that they tend to grow crystals in glazes, which is a good way to create matteness, or just add interest to an otherwise boring glaze. Thank for replying. How about the amount for both in glaze mixture? Because when I used rutile 15%, the glazed became pinhole and little bit harsh. Was it rutile effect? Link to comment Share on other sites More sharing options...
Mark C. Posted February 13, 2012 Report Share Posted February 13, 2012 Rutile glazes in reduction fire (thats my area of experience) can be problematic with pin holing I have used a rutile base glaze for many decades by the ton and have seen my share of pinholes-Firing schedules-reduction amounts-glazing procedure-dusty dirty bisque ware can all be factors . I like tin and zircon to opacify over Titanium Dioxide as noted above Mark Link to comment Share on other sites More sharing options...
Natas Setiabudhi Posted February 14, 2012 Author Report Share Posted February 14, 2012 Rutile glazes in reduction fire (thats my area of experience) can be problematic with pin holing I have used a rutile base glaze for many decades by the ton and have seen my share of pinholes-Firing schedules-reduction amounts-glazing procedure-dusty dirty bisque ware can all be factors . I like tin and zircon to opacify over Titanium Dioxide as noted above Mark Okay thanks Link to comment Share on other sites More sharing options...
Marcia Selsor Posted February 14, 2012 Report Share Posted February 14, 2012 Rutile is a natural , but impure source of Titanium Dioxide. Rutile contains a bit of iron which adds to its coloring quality. Marcia Link to comment Share on other sites More sharing options...
neilestrick Posted February 14, 2012 Report Share Posted February 14, 2012 You should really never need more than about 7% rutile in a glaze. It is one of the most refractory ingredients we use, so it can stiffen glazes, which can result in pinholing. Link to comment Share on other sites More sharing options...
Natas Setiabudhi Posted February 15, 2012 Author Report Share Posted February 15, 2012 Okay guys I really appreciate for the input. Link to comment Share on other sites More sharing options...
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