ronald2 Posted September 8, 2014 Report Share Posted September 8, 2014 Hi, I want to recreate old (16th century) tiles from Antwerp (with some protest against the extreme catholic Spanish king Philips II). In that period, ceramists used a lot of lead glase. It even gave a light yellow impression on the white engobe they used as an contrast on the red-brown tiles to show the pattern.. What can I use as a safe alternatif that ressembles the old glase? Thanks, Ronny Ostend Belgium Link to comment Share on other sites More sharing options...
Babs Posted September 8, 2014 Report Share Posted September 8, 2014 Is the yellow on the white engobe merely the colour of the white earthenware on firing? If so some of the fritted clear glazes with a good firt for your body would do the trick. I say this as I use a white slip over red clay and with a clear it comes out a light cream, definitely not white. Link to comment Share on other sites More sharing options...
ronald2 Posted September 9, 2014 Author Report Share Posted September 9, 2014 Thanks for the answer. It seems the light yellow tone comes from the lead glase, so I will have to copy the colour. I will include a link to a pdf-file describing the archaeological finds in Antwerp with many (small) fotos of tiles or parts of tiles. Which recipy or fritte can you recommend me? https://www.dropbox.com/s/pogy5359jc8c32e/Rapport_7_Inlegtegels.pdf?dl=0 Regards, Ronny Ostend, Belgium Link to comment Share on other sites More sharing options...
TJR Posted September 9, 2014 Report Share Posted September 9, 2014 You are correct. The honey yellow colour comes from the lead glaze. This is tough to reproduce. i am not an earthenware guy. i am sure someone here can provide you with a recipe. Tom. Link to comment Share on other sites More sharing options...
alabama Posted September 9, 2014 Report Share Posted September 9, 2014 Hey, I think lead glaze is only bad for modern utilitarian vessels such as cups and bowls. Lead glazed tiles should be ok to make and use as asthetically pleasing replica wall tiles. On the other hand, glaze preparation might be an issue, with dust, stirring and splashing the glaze around. good luck, Alabama Link to comment Share on other sites More sharing options...
neilestrick Posted September 9, 2014 Report Share Posted September 9, 2014 working at low fire temps you have a lot of options for coloring a glaze. I would first find a glaze that has the qualities of glossiness and movement that you want, then experiment with adding stains and/or opacifiers to get the color you want. It's doubtful that there's a recipe that will work perfectly, so if you're not familiar with glaze formulation then I would look at commercial glazes. If you Google search for low fire glazes you should have no problem finding some to test. The biggest problem will be finding materials in Belgium that can be substituted. If you have access to frits, I would start testing frits plus 10% kaolin for a basic low fire clear. Link to comment Share on other sites More sharing options...
bciskepottery Posted September 10, 2014 Report Share Posted September 10, 2014 I'd avoid lead glazes; while safe for tiles, you could end up contaminating your kiln for doing non-lead wares. Check out some of the slip-ware potters -- Hannah McAndrew, Doug Fitch, Ron Philbeck -- and see how they use colored slips and amber, honey and other glazes over white slip on earthenware. Link to comment Share on other sites More sharing options...
ronald2 Posted September 15, 2014 Author Report Share Posted September 15, 2014 Hi, Thanks for the info and usefull tips. Last Friday I saw some Ottoman ceramics (Turkish) of the 16th/17th century with still cristal clear glace. see pcs at my Dropbox account: https://www.dropbox.com/sh/7if3zax3hkbovkw/AAAqcS9-E6eIzTJBOy2tGRnwa?dl=0 Best Regards, Ronny Link to comment Share on other sites More sharing options...
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