winifredweiss Posted November 12, 2013 Report Share Posted November 12, 2013 I am doing figurative sculpture with cone 6 stoneware. I would like to paint them with oil or acrylic paint. to what temperature should I fire them to have the greatest strength and still retain some porosity so the paint will stick? Link to comment Share on other sites More sharing options...
bciskepottery Posted November 12, 2013 Report Share Posted November 12, 2013 Do you know how absorbent your clay body is when fired to cone ^6? Could range anywhere from 1% (well vitrified) to 5% (not so vitrified). Also, what is your normal bisque temperature? Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 12, 2013 Report Share Posted November 12, 2013 Cone 6. The oil will stick just fine. Marcia Link to comment Share on other sites More sharing options...
Frederik-W Posted November 12, 2013 Report Share Posted November 12, 2013 Acrylic paint will stick to any any fired clay unless it is glazed. However if you expose the painted sculpture to temperature shocks (e.g. take it from in-house to bright & warm sun) it might develop cracks. Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 12, 2013 Report Share Posted November 12, 2013 Good point. But then the clay would also need to be weather proof. Link to comment Share on other sites More sharing options...
perkolator Posted November 14, 2013 Report Share Posted November 14, 2013 you'll be fine at pretty much any temp. these days you can get paints to stick to almost any surface, even glass/glaze. we have had students choose to acrylic paint their work in the past - work was fired to both earthenware/^04 and mid-range/^6 and have been displayed outdoors for several years. the pieces with high paint details took around 6yrs in full-sun on a south-facing part of the yard before the paint started to deteriorate from UV damage -- I think he also used latex "oops" house paint and oil paints on the piece. spray paints and enamels, even fingernail polish hold up great as a "cold surface treatment" i say go for it. you can always make more art if it's unsuccessful. Link to comment Share on other sites More sharing options...
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