I have done a couple blue flames so far and am finding little tricks all the time. Here is my formula,
1) I lay out my design with House Of Kolor Cobalt Blue candy. This will give me a design to use as a guide, and the dye from the candy will also draw into the white which is the next step. This first step does not have to be done, I find it just makes it a little easier and helps give the background blue a deeper color.
2) I then take basecoat white and lay down a loose pattern. This does not have to have all the tight lines, that will come later. This loose background will serve as the gases burning off.
Side Note; all of the colored ie. blue or green flames that I have seen have a lot of open spaces in them. I think this is to help give the flame some depth, so don't make to much background.
3) Cover the white with the Cobalt Blue candy.
4) Now go back over the flames with your white** using a stencil to give the flame lick their pop. Be careful not to over do this step. I would recommend you get a good picture of a set of blue flames to give you a reference.
5) Go back over the white with the Cobalt Blue again.
6) At this point you have your flames. I have started to put another step in by going back over the really tight lines that you think should be the hot spots with some yellow basecoat. this will be covered with the Cobalt Blue which turns into a light green. I just think it gives the flame an extra little pop.
**If you have a pearl white use that for step 4 instead of the white. That will really give the flame depth. Once I get the pearl white I will stop using the yellow for the pop.
Have fun
, and don't get frustrated
cause it is not as easy as it looks, trust me. When you have some pictures post them so we can check them out.
j4e