I was wondering if anyone had any advice about colouring handmade flowers.
I tried chalk but it looked powdery and when i mixed it with water it looked powdery.
Get some petal dust that's made especially for flowers, it goes on better than chalk. You can get it at any cake supply store, most likely. I get everything online because I have no decent shops near me. Depending on how you put them together, you can also use a candy glaze that you dip the petals into after dusting them, and that gives them a nice shine. You can also steam the flowers a little after dusting them,. Make sure the gumpaste is totally dry and hold the dusted flowers over steaming water for a couple of seconds at a time until the chalkiness goes down.
I also use an airbrush to color some flowers, and I've seen videos where Ron Ben-Israel uses the petal dust first, then airbrushes them to give them more depth.
You don't mix powdered colors w/water......use alochol such as vodka or Everclear.
But why didn't you color the fondant? They using dusts/powders will look good.
I color my paste & then dust. Chalk works very well but you must scrape it very finely so that it is a powder, I use an Xacto blade. Steam the finished dried flower, be careful not to steam too much or the flower will melt. If you want more of a shine, confectioners glaze is great, diluted a little with the thinners. I use Vodka to mix with any dusts if I want to paint.
I've used chalk, watercolor, pear/luster dusts, and food color markers.
It just depends on the effect I want/need for that flower as to what I'll use.
Non-toxic chalks work well as do the petal dusts sold for cake decorating. They should apply well, could be the brush you are using?
When doing darker flowers, I start out with the paste colored in that shade but any others, I just start white and dust away. Steaming does help to blend and set the colors but when you apply it, it should look good from the start. Feel free to e-mail me if you have more questions