I realize Poly Bonder doesn’t need to be baked, but its heat-resistance is what makes it unique from other super glues. I baked Sculpey Bake & Bond and Lisa Pavelka Poly Bonder at 275˚ for 30 minutes in a preheated baking box. I preheat it with the lid off using an oven thermometer. A baking box is two cheap aluminum pans, one inverted as a lid, with two small ceramic tiles inside. I baked Kato Poly Paste and Kato Liquid Polyclay at 300˚ for 30 minutes in a preheated baking box. Notice the thin layer spread on the back of the polymer clay disc. In the process of applying Kato Liquid Polyclay. I intentionally left the top part of the disc or washer hanging off the edge of the clay strip to allow me leverage when trying to pry them off. (See photo below.) I didn’t want to use too little adhesive, but I also didn’t want to use too much because it looks bad when it seeps out. I spread a thin layer of each adhesive on the back of the polymer clay discs and metal washers using a new toothpick for each. I wore nitrile gloves while doing the test.Īll adhesives were purchased within a few months of testing. I also cleaned all the washers, polymer clay discs and test strips with a Q-tip soaked in 91% rubbing alcohol. They looked clean, but I still washed them in hot, soapy water. I got new, zinc-coated, steel washers thinking they could represent bails. I thought about making Kato discs to go on Kato clay, etc., but decided a mixture of different brands would make a more rigorous test. The scraps were mainly Kato with some Fimo, Premo and a tiny bit of Soufflé. Then, I conditioned my bag of polymer clay scraps, cut out discs and baked them. I first baked test strips of five different brands of polymer clay. I really dislike the thought of something I’ve made falling apart after I’ve sold it, so I decided I needed to test adhesives. Each brand has its own structure, but the basis is the same.I’ve been collecting and trying various glues while crossing my fingers that they’d work long-term. There are different types of Porcelain on the site.
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