tbaa Posted December 9, 2017 Report Share Posted December 9, 2017 How long can glazed pieces be left before firing? days? months? I have some pieces I've glazed but as I am travelling, it may be a month before I can fire them. Also, as I do underglaze decoration and sgraffito I'd like to get some pieces ready, and simply have them ready to dip them in clear glaze before firing. Are the colors likely to be affected? I just read some amazing advice on how to use hairspray or spray-on starch to prevent smudging of underglazes, oxides etc. Can I then dip these items (protected with starch or hairspray) into my clear glaze would the hairspray / starch contaminate the glaze?? This seems like a 'no-brainer' as the oxides DO contaminate the glaze....and the hairspray / starch simply burns away in the firing....but as it seems too good to be true, I simply have to check. Despite a lot of advice from people like Marcia Selsor, glazenerd and others, I am still trying to make glazes that work. This involves a few days of getting things ready for the kiln. As I develop glazes that work, I'd like to have some things ready to fire, while I mix and test new recipes and combinations. Hence the question about how long glazed pieces can sit around before being fired. as always - many thanks in advance! Link to comment Share on other sites More sharing options...
neilestrick Posted December 9, 2017 Report Share Posted December 9, 2017 They can sit for eternity before firing. However, the buildup of dust can cause glaze problems, so be sure to blow them off very well before firing, or keep them under plastic or in a tote once the glaze has dried completely. Link to comment Share on other sites More sharing options...
tbaa Posted December 10, 2017 Author Report Share Posted December 10, 2017 oh fantastic! thanks so much. Link to comment Share on other sites More sharing options...
Mark C. Posted December 10, 2017 Report Share Posted December 10, 2017 I fired some pots my wife made in collage-after 30 years-got the dust off them (washed them) and they worked fine.Her sister had found them after all those years.They where bisque . Link to comment Share on other sites More sharing options...
tinbucket Posted December 11, 2017 Report Share Posted December 11, 2017 Chris Gustin sprays his pieces with some type of glue (regular white Elmers, I think) after glazing to protect the glaze from chipping off before firing. I think you could easily dip them if you do not have access to a sprayer. Similar to using hairspray, which I have heard of. I'm not sure if either is better than the other Link to comment Share on other sites More sharing options...
Callie Beller Diesel Posted December 11, 2017 Report Share Posted December 11, 2017 If you're not moving the glazed pieces around a lot, you probably don't need to spray them with hairspray or anything else. That sort of thing is useful to do if you're transporting your work to be fired, but shouldn't be necessary otherwise. The glazes shouldn't chip if they're just sitting on a shelf. Link to comment Share on other sites More sharing options...
Rae Reich Posted December 14, 2017 Report Share Posted December 14, 2017 It's an interesting idea, to keep the oxides and colorants from contaminating your clear glaze. Let us know if that works without interfering with glaze application ( just try it on one or two). Good luck! Link to comment Share on other sites More sharing options...
andros Posted December 15, 2017 Report Share Posted December 15, 2017 In my very little experience this is the first time I hear that is possibile to spray glazes with glue or hairspray to protect them... now I've no doubt that it's possible but really that stuff doesn't affect or spoil the glaze? Does not remain some carbonaceous residue or something else? Is there some precaution yo be taken? How much? I find it extremely interestive... unfortunately at the moment I don't own my kiln so I have to move my pieces with my car and invariably some piece arrive spoiled... Link to comment Share on other sites More sharing options...
Benzine Posted December 15, 2017 Report Share Posted December 15, 2017 I've seen others here state they use a starch spray (Like what you would use on clothes) to protect unfired, glazed wares. Link to comment Share on other sites More sharing options...
LawPots Posted December 20, 2017 Report Share Posted December 20, 2017 On 12/15/2017 at 10:54 AM, andros said: In my very little experience this is the first time I hear that is possibile to spray glazes with glue or hairspray to protect them... now I've no doubt that it's possible but really that stuff doesn't affect or spoil the glaze? Does not remain some carbonaceous residue or something else? Is there some precaution yo be taken? How much? I find it extremely interestive... unfortunately at the moment I don't own my kiln so I have to move my pieces with my car and invariably some piece arrive spoiled... I have used spray shellac and hairspray to fix glaze in place to move pots. I have not noticed negative effects. Glaze fire gets so hot that the organic material burns away long before the glaze actually starts to melt. I do know that there is one glaze that might be affected by this treatment: carbon trapping shino. Not because of the contents of the hairspray, but because of the movement of soluables in that particular glaze. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.