There are so many rules in enameling. They’d make your head spin. But, I’ve discovered through trial and error that some rules are meant to be broken. Rules are passed down from one artist to the next and often blindly followed. Some artists like to break the rules, and by doing so, they discover that not everything they learned is true.
Rule #1 - Always start with a clean, oil free piece of copper to enamel
I learned from Ricky Frank that this isn’t always necessary. Now, he’s been enameling a long time, so I figured is must be right. There is always a little bit of fear that goes along with breaking the rules, but I tried it for myself, and he was right. If you think about it, we use Squeege Oil to make enamel adhere to the surface of metal. It’s an oil. It burns out under the torch flame or in the kiln. However, if you are using Klyr Fire to adhere enamel to a curved surface or attempting to coat your metal with liquid enamel, it won’t stick without first cleaning the metal. Another trick I learned from Amanda Dennison, is to rub the surface of your metal with liquid enamel. It breaks the surface tension and allows the liquid enamel to stick to your metal! Other artists, like Jan Harrell, use a surfactant to increase the surface tension, which makes the enamel stick better. This is especially great when you are applying watercolor enamel, acrylic enamel or mason stains to your enamel. Alternatively, you can rub the enamel with a little rubbing alcohol on a paper towel.
Rule #2 - You have to remove all firescale in order for enamel to adhere to copper
This is another misnomer that was demystified by Ricky Frank. All you really need to do is remove loose firescale. Copper will oxidize given the right conditions, despite whether there is a surface of enamel covering it or not. So much time is wasted cleaning firescale from copper prior to enameling. Pickling the metal can cause any enamel that may be on the opposing side to permanently dull. So, give it a try. Leave that firescale and see what happens. You will be pleasantly surprised, and you’ll save yourself a lot of time and frustration along the way! The only time I really worry about removing firescale is if I am using transparent enamel directly on a metal surface.
Rule #3 - You have to use eutectic solder when soldering pieces to be enameled
This has been disproved by many artists, including Ann Havel who uses medium solder when enameling. I personally have had issues with my pieces staying soldered when enameling, but as I understand it, that is more of an issue with gravity than the type of solder. When you are enameling post earrings, as an example, it’s best not to have them sticking up in the air. The flow of the enamel and the forces of gravity will pull them over. If they are hanging down, the enamel will hold them in place. Give it a shot. It has worked for me.
Rule #4 - Your edges have to be perfectly filed before you start enameling
This may just be a rule I made for myself in the beginning but I don’t follow it any longer. The reason I don’t follow it any longer is simple. I file my edges between every firing. This may sound excessive, but it really does prevent little flakes of firescale from floating off the edges and landing on the enamel. I use a diamond file perpendicular to the edge and then file from the back at a 45 degree angle to prevent the piece from sticking to the trivet in subsequent firings.
Rule #5 - Decals have to dry overnight before firing
I discovered in my own practice that when I apply decals to enamel, once I have removed as much of the moisture as I can with a soft paper towel they need only about 15 minutes on top of the hot kiln or on a cup warmer before firing. What I do differently is to partially fire them, just until the decal melts to the surface of the enamel (when you hear the poof inside the kiln or after the decal catches fire and turns clear in the torch flame. I remove it from the kiln or torch and carefully prick any bubbles with a sharp needle and then re-fire to maturity. This has been a much more successful method for me in my practice. I have far fewer image break ups and voids in the image this way.
Experimentation is key to learning if what you have been taught all along is the only way to do something. So, don’t be afraid to try new things. Break the rules. You may discover an easier or better way to do something.