I have looked at commercial products, and want it to still wash away with water. Commercial "liquid chalk" products are more robust though. Maybe something similar to football field paint??? i dont know tho.
2007-03-14 03:12:49 · 12 answers · asked by Tang 2 in Arts & Humanities ➔ Visual Arts ➔ Sculpture
The link below is for a spray chalk made by, of all people, Rust-oleum and is available in a variety of colors. They claim is washes away with water using a power washer, or water and a wire brush.
Since their product doesn't freeze until you get to 10 degrees F, I'm guessing the carrier is highly flammable, like alcohol, or more likely something closer to acetone. Both mix easily, and evaporate quickly.
to make your own I imagine you would have to grind the chalk until it is pulverized and mixes like paint, so it isn't granular. I'd try grinding it and mixing with ethanol, or acetone or denatured alcohol. Rock climbers make a liquid chalk from
8 oz Elmer's glue
4 oz water
2 oz Vodka (cheapest stuff you can find)
1 oz fine sand
1 tsp red food coloring (optional)
You could easily eliminate the glue and the sand. The food coloring obviously you can change, or mix primary colors, to make the color you desire and (i think) is water soluble.
If you're going to mix it in an electric appliance be VERY careful if you use alcohol or acetone. They are VERY VERY (did I mention very?) flammable and will flash if the fumes are dense enough.
If you can make it I you should patent or trademark it!!
Good luck
2007-03-15 18:46:50 · answer #1 · answered by Sarge1572 5 · 1⤊ 0⤋
When sculptures need a resin or marble finish faux there
are spray cans nowadays. To fit it in a mister works also.
The combinations depend on three elements, one is shine,
the store stuff, or polymer resin mixes will lite up and gloss.
When hoping for a natural finish in the home stone, it is
easier to use the sprays and buff with some small air brush
of any material you like in powder it will stick if applied at
lite settings. To actually make a full coating for say an
aged affect I use the cans, spray them into an air brush kit. Then use the finish while nearly dry for a surface that is natural, hot temperature will look older.
2007-03-15 21:51:05 · answer #2 · answered by mtvtoni 6 · 0⤊ 0⤋
Well you can liquefy chalk with water but it will become translucent like water colors as a matter of fact you would be making a water color mix. An if you want to spray it you will need to dilute it more and that means a more translucent color.
No matter what you add to the chalk it will become translucent if you want to be liquid enough to be able to spay it. And when dried on some surfaces it wont hold very well unless you add some medium mixture of gum arabic, glycerin or honey , but you need to do some tests to see how does it clean.
2007-03-15 01:19:27 · answer #3 · answered by ? 7 · 3⤊ 1⤋
Buy a tub of Plaster of Paris.
Mix it with enough water to make it sprayable.
Put it in a container with a nozzle. Spray it to whatever surface you want.
It will dry and harden and will not be water soluble!
I'v done this for a science project before when building something
2007-03-15 21:48:49 · answer #4 · answered by thepenpal 4 · 2⤊ 0⤋
Chalk is calcium carbonate. Whether it sticks or not depends on the medium. Whether the medium permits washing off the pigment after it dries depends on the medium. Although I don't know for sure, one of the gums - gum arabic or gum traganth might remain soluable. Contact an artists' supply place about choices.
2007-03-14 12:13:53 · answer #5 · answered by Mike1942f 7 · 6⤊ 1⤋
You can make your own chalk out of Plaster of Paris. You may want to try mixing your own thin plaster, and put it in a spray bottle, and see if it sprays, or if it just clogs up the nozzle.
2007-03-14 22:55:59 · answer #6 · answered by XCoSkiGirl1 2 · 2⤊ 1⤋
Ok I have never done this with chalk but for my pastels I grind them up and then mix with methylated spirits. Then I use a mouth atomizer (available at an art supply store) to apply.
2007-03-15 21:32:45 · answer #7 · answered by stlcardsgal86 2 · 0⤊ 2⤋
uhh... have you tried powdering chalk then allowing it to mix with water... or maybe something that dissolves faster like alcohol? commercial liquid chalks could be expensive. besides, arent artists supposed to be creative? try mixing stuff up.
2007-03-14 10:53:45 · answer #8 · answered by Salem 2 · 6⤊ 2⤋
Break it up into little pieces and then mix it with water. It will probably turn into this doughy mixture. I've never tried it before, but GOOD LUCK!
2007-03-15 09:08:25 · answer #9 · answered by Anonymous · 2⤊ 1⤋
Carefully.
2007-03-15 15:52:50 · answer #10 · answered by derp k 1 · 1⤊ 2⤋