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Thompson enamel pens are ball point pens with vitreous enamel ink. Store in horizontal position. Shake well before using. Hold the pen perpendicular, press gently on a fired vitreous surface to start the flow of liquid. Squeeze pen slightly while drawing or writing. If you do not like your design, or have a smear, wipe the surface clean and begin again. Fire to between 1260F and 1500F.
Compatible with vitreous enamel, window glass, Bullseye, Spectrum, Uroboros, Effetre & ceramics.
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