I have been using stained glass pretty exclusively. I have flirted with china and dipped my toes in the vitreous glass pool but the methods, opinions and experience I am comfortable discussing are with stained glass. I developed this method after two years of gluing glass to clear glass hurricane lamps, recycled bottles, votives, tea lights, vases and bowls. This is what works for me and my working/lifestyle. That said, here we go.
First of all, Why Weldbond™?
There are plenty of glass adhesives out there that dry clear (usually the desire when gluing glass to glass). Many contain silicone, i.e. E6000™, Goop™, GE Kitchen & Bath Clear Silicone Sealant™, and Liquid Nails™ clear. All of these are proven winners for a waterproof, maximum hold bond. I used Liquid Nails™ Clear on the bowl in the Glass Bowl Diary. without problem. I use Liquid Nails™ clear to seal metal hardware under a mosaic. Liquid Nails™, even when cured will flex a bit. Weldbond™ cures fairly hard (even though Frank T. Ross says it is flexible). So, if the base flexes (or warps), the glass will crack (usually hairline) as a result. Silicone sealants are also tackier than Weldbond™, therefore can speed up the gluing phase of your project. However, I always prefer to use Weldbond™. I choose not to use the Liquid Nails™ clear or other silicone sealants or adhesives for the following reasons….
The odor (enough said, but I will go on).
The flammable fumes (I use a kerosene heater in my workspace during the icy SW PA winters).
The fact that all of the product labels say that it "May be harmful if absorbed through the skin", yet it is impossible for you NOT to get it all over your hands.
The fact that the product labels say it contains a chemical that is "known to the State of California (and they would know ) to cause Cancer, birth defects or other reproductive harm." (No brainer to me even if the chemical is in a
My candle shelters in particular can get very hot with a candle burning for an hour or more. Liquid Nails™ says the "vapors" may ignite. There is no data on the actual cured adhesive igniting, but since I sell my shelters, I don't want to risk it.
And oh let's see, its TOXIC! I mosaic 7 days a week. Another quote straight from the Liquid Nails™ Clear package, "Reports have associated repeated and prolonged occupational overexposure to solvents with permanent brain and nervous system damage." I am whacked out enough. I don't need to add to my family's misery.
For the occasional project or when it is necessary due to the nature of the project (metal that may rust), I am sure there is no harm done. But, I am someone who is producing a line of mosaic gift items (in frightening volume) and I have two small children in the house. I occasionally use Envirotex Lite™ as a polymer resin coating over tables and it is fairly toxic as well. So, I limit the toxins I expose myself too when I can. When I found out that Weldbond™ will give a glass to glass bond as strong as a silicone sealant AND that Weldbond™ was non-toxic, I was sold.
For more info… look at David Ward’s “Articles and Workshops” page on his site, http://www.wardmosaic.com/. Granted, his study wasn’t super scientific by his own admission, but it holds a lot of weight with me and many others who use stained glass exclusively.
Also, visit http://www.franktross.com/. Click on the little happy Weldbond™ bottle at the top and go to the bottom of that page. You will see “Weldbond™ Product guide”. Click on “Glass and Porcelain” and you will see a really cool mosaic picture of a clown that I LOVE.
Note: I am not in anyway affiliated with the Frank T. Ross Corporation and I am not being paid for this glowing recommendation. I am just a crazed Weldbond™ fan.
Ok, that said, let’s get to it!