I have the fuseworks microwave kiln. I just discovered the frit powder and bought a 96 coe sample pack. Something is definately wrong. Is this not suitable for the microwave kiln? It comes out burned, or disintegrates into dust, when cooled, no matter what length of time I put it on. tried it on just the fiber paper to see what the colors would look like. started at 30 sec. didn"t look right, but went for another 30 sec. and was not looking good at all. Help, I was so excited to be able to add to my little rainy day projects.