For fabric painting, most machine washable fabrics work well including 100% cotton, 50/50 cotton/polyester blends, canvas, denim, sweatshirt fleece (including acrylic) and t-shirt knits. Tightly woven fabrics are not recommended because paint has difficulty bonding and soaking in. Synthetics are not recommended because the paint has difficulty bonding to the fabric, however, synthetic fabrics can be used if they are one-time use or intended to not be washed.
For fabric dyeing, natural fiber contents such as 100% cotton; viscose rayon; wool and silk are perfect. Synthetics will not accept the dye.
Always heat test in an inconspicuous area to avoid scorching.
Position crystals glue side down on fabric. Cover with a thin cloth.
Press iron on crystals and hold for 15-20 seconds; do not move iron from side to side.
Let fabric cool completely before moving.
Bare spot causes include; too heavy an application of glaze or underglaze, oil from the skin, accumulation of dust or other foreign substances, or hard spots on the bisque.
Blistering can be caused by over-application or under-application of the glaze, overfired or underfired glaze or a poorly ventilated kiln.
Although the majority of Duncan® fired products are designed for low-fire applications, many perform well at mid-range temperatures. Click here to read about the characteristics of each Duncan® product when fired to cone 6.
Red fired products containing cadmium can experience a washed out or greyed appearance if they are fired too hot, do not have enough color applied, or are fired with items decorated with copper formula glazes or greenware.
Pinholes can be a result of different variables;
If your ware is sticking to the mold you can try:
There are several things you can do to make pouring a mold with tiny holes easier;
If the ware collapses when opening the mold, it is likely the mold was drained too fast.
Flat items (tiles and appliqués) warp because
The ware was dried too fast. Slow down the drying time by covering the casting with a plastic bag.
The drying must be done on a flat, even surface.
The pieces must dry uniformly, not just from the edges.
Place a piece of sheet rock over the ware to keep it flat.
You can prevent a plate from warping by;
How long can I keep a dye once it has been mixed with water?
Do not add water to dye until you are prepared to apply it. Apply dye within 24 hours after mixing. Dye left unapplied after 24 hours will begin to lose concentration and will result in noticeably weaker color intensity.
Concepts: Can Concepts be used on greenware?
Concepts is an underglaze for Bisque. For greenware, E-Z Strokes and Cover-Coats can be used.