Food coloring in 'glaze paint'

Well I posted too soon. I had thought my search on clayart archives had come up empty. It hadn't. More info there than I would have thought. It seems that food coloring is used for more reasons than I had in mind including being able to seen where the white glaze on white clay has been applied (so I guess the answer is that yes it does burn out ok.... but then there was a post of "blue Kool-Aid" glaze whose recipe called for blue Kool-Aid....

What the hell is in Kool-Aid then. Thats scary. I have used food colouring in brush wax and latex, you're right, just burns out fine. Annemarie

Kool-Aid is, as I remember, the drink of the astronauts - ie. powder added to water to make a nice drink. But blue??? I've been out of the loop for a while, I see! Hehe!

Marianne

is that "kool-aid" as in "teh electric kool-aid acid tests?? Maybe they didn't need the extra mileage ingredient, it was just the blue dye.... Tee Hee Eddie (the superannuated hippie) 'Realism is seductive because once you have accepted the reasonable notion that you should base your actions on reality, you are too often led to accept, without much questioning, someone else's version of what that reality is. It is a crucial act of independent thinking to be skeptical of someone else's description of reality.'- Howard Zinn

Exactly! Glad we never gave our kids bug juice (our name for Kool-aid) though I had more than my fair share of it as a kid - that could explain a lot.

Never had Kool-Aid but as a kid we had high sugar cordial some of the time. I gave my kids juice some of the time, but mostly they drank - wait for it - water :o) They are 15 and 20 now

Don't recall astronauts and Kool-Aid. Could you be thinking of Tang? That was supposed to be something like freeze-dried orange juice. Probably tasted a lot better when the nearest orange tree was hundreds of miles below!

Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis

In certain situations we are asked about colouring materials to aid identity and we always recommend food colours, which because of their use are non-toxic and burn out without trace. For example we sell a colloidal silica for spraying onto Ceramic Fibre to harden the surface against degradation by gas, oil, or wood flame. This comes as a clear liquid, so without a dye in it, it is virtually impossible to see where you've sprayed. I first came across this when our kids when to a party where ALL the food was dyed green. Unsurprisingly not a lot of it was eaten!

Steve Bath UK

In article , annemarie writes

So do you think the Kool-Aid glaze simply had Kool-Aid added as an ingredient so that it was visible on the ware?

Definitely Tang (tasted like tangerine juice but I believe was entirely artificial)... Definitely. (once was a big fan of the space program, tang and Rainman)

exactly - just for visual use.

i saw a production pottery house doing typically cone 6 ware ("squash pots" - mold & ram methods).

they used color in the glazes so the workers could tell if a product was fully glazed or not just by looking at them. or if a batch was left over night you could easily remember in the morning.

see ya

steve

DKat - if you liked the space program (certainly me!) get a copy of that Tom Hanks space series: "From Earth to the Moon". rental or buy it. it's an excelent docu-drama.

see ya

steve

Never heard of it. Thanks! Donna P.S. Have you ever been to the Smithsonian National Air and Space Museum in D.C.? They have the Apollo space module on display. If you have never seen it, it is really worth the trip. I cannot believe they actually survived in this thing. It's walls look paper thin and it was incredibly tiny.

More than likely.

Steve

In article , DKat writes

non pottery but fun anyway:

by the way - the space museums in both huntsville alabama & cape canaveral (florida usa) are every bit as good as the one at the smithsonian in washington DC! i was lucky to get a special tour of the cape for a shuttle launch (VIP seats - but delayed launch. got the T shirt though). i saw the refurbishment of the side bay rockets along with many other non-usa-public areas.

huntsville has the 2nd skylab which they used on the ground to help debug issues they had in space.

standing next to a saturn 5 rocket is a pretty small feeling. that tourch did some 6 G's acceleration! they tuned the shuttle down to around 3.5 G's after the saturn 5 was shown to be stronger then needed...

should have collected some special dirt from some of the old launch sites. might be some odd chemicals still around that make a good glaze?

see ya

steve

Another approach is to add some Cobalt Oxide to the Cobalt carbonate. The oxide is black in color and helps the carbonate show up on bisque or glaze, as well as adding intensity to the hue. Brad Sondahl