AWPottery Posted October 7, 2013 Report Share Posted October 7, 2013 What type of utensils do you use to sketch out your patterns on your pots when leatherhard? Or when bisqued? I'm look for something that I can use that doesn't leave any marks or will burn off/wash off and not show. Suggestions? Link to comment Share on other sites More sharing options...
Guest JBaymore Posted October 7, 2013 Report Share Posted October 7, 2013 Paint with red food coloring and a brush. Burns away. (99.9 percent of the reds do..... there are some that don't!) best, .......................john Link to comment Share on other sites More sharing options...
AWPottery Posted October 7, 2013 Author Report Share Posted October 7, 2013 I'm assuming you use the red food coloring for sketching when on leatherhard clay. What about on bisque pots? Link to comment Share on other sites More sharing options...
Bob Coyle Posted October 7, 2013 Report Share Posted October 7, 2013 You might try day glow colors on bisque ware. I tried black magic marker and it left a faint black streak. The transparent colors are all organic dyes and burn off. Some of the opaque ones have titanium dioxide and leave a white mark. Best to test on a tile first . Link to comment Share on other sites More sharing options...
ayjay Posted October 8, 2013 Report Share Posted October 8, 2013 I'm assuming you use the red food coloring for sketching when on leatherhard clay. What about on bisque pots? I use a straightforward HB pencil to mark out on bisque (and usually wish i hadn't - my artistic skills leave a lot to be desired) but the pencil works fine. Link to comment Share on other sites More sharing options...
skyvalley Posted October 10, 2013 Report Share Posted October 10, 2013 I'm assuming you use the red food coloring for sketching when on leatherhard clay. What about on bisque pots? I use a straightforward HB pencil to mark out on bisque (and usually wish i hadn't - my artistic skills leave a lot to be desired) but the pencil works fine. Oh Ayjay, that gave me a good laugh. How many times have I decided to go all Picasso on a pot and had regret... more than I'd like to admit! Link to comment Share on other sites More sharing options...
PotterGrl Posted October 18, 2013 Report Share Posted October 18, 2013 My pottery teacher (40yrs experience) uses a regular lead pencil on bisque. You could try it on one to test. Link to comment Share on other sites More sharing options...
Marcia Selsor Posted October 18, 2013 Report Share Posted October 18, 2013 I use a lead pencil too. On bisque.I use a soft lead up to 9B.Sometimes I use a graphite stick. Marcia Link to comment Share on other sites More sharing options...
Min Posted October 18, 2013 Report Share Posted October 18, 2013 Wouldn't the pencils be graphite not lead? I think they stopped using lead in pencils years ago. Min Link to comment Share on other sites More sharing options...
PeterH Posted October 19, 2013 Report Share Posted October 19, 2013 Min, The black in a pencil is indeed graphite, which explains why it fires out nicely. However it is customary [at least in the UK] to refer the centre of a pencil as the "lead". Regards, Peter For those interested in the history: Some time before 1565 (some sources say as early as 1500), an enormous deposit of graphite was discovered on the approach to Grey Knotts from the hamlet of Seathwaite in Borrowdale parish, Cumbria, England. The locals found that it was very useful for marking sheep. This particular deposit of graphite was extremely pure and solid, and it could easily be sawn into sticks. This remains the only large scale deposit of graphite ever found in this solid form. Chemistry was in its infancy and the substance was thought to be a form of lead. Consequently, it was called plumbago (Latin for "lead ore"). The black core of pencils is still referred to as lead, even though it never contained the element lead. The words for pencil in German (Bleistift), Irish (Peann Luaidhe), Arabic (قلم رصاص qalam raá¹£Äá¹£), and other languages literally mean lead pen. ... Most pencil cores are made of graphite mixed with a clay binder ... You're again right that the metal lead was used in some earlier writing instruments, as mentioned in these two web snippets. Pencil makers use graphite in their pencils for both historic and practical reasons. In Roman times, writing implements were made from materials that included the element lead. By the sixteenth century, lead was no longer used, but had been replaced by charcoal, paint, and other materials. In 1564, a graphite mineral deposit was found in England, and the English quickly realized that it was a useful writing material. Graphite is a form of the element carbon but sixteenth- century Europeans mistakenly called this deposit "lead," and they used it for making pencils. Modern people continue using graphite pencils, although today pencil makers mix clay with the graphite to change the hardness of the pencil's "lead". The 'lead' in a pencil has not been made of lead for centuries. The ancient Egyptians, Greeks and Romans all used small lead discs to rule lines on sheets of papyrus before writing on them with a brush and ink. By the 14th century, European artists were using rods of lead, zinc or silver to make pale grey drawings called silverpoint. In the 16th century, Conrad Gesner of Zurich, in Switzerland, in his Treatise on fossils, described a writing rod held in a wooden case. ... and I have a very faint memory of reading of some specialised use of real-lead pencils in mechanical engineering up to about WW2. Maybe for marking other metal parts, or something like that. Link to comment Share on other sites More sharing options...
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