Slump Hump Mold - Round, Size 1

Size: See Dimension chart below

Combo Plaster Hump and Slump Mold. Slump mold shown. Slump dimensions 1.75 inch Height x 5 inch Diameter

Combo Plaster Hump and Slump Mold. Slump mold shown. Slump dimensions 1.75 inch Height x 5 inch Diameter

  • Combo Plaster Hump and Slump Mold. Slump mold shown. Slump dimensions 1.75 inch Height x 5 inch Diameter
  • Combo Plaster Hump and Slump Mold. Hump mold shown, upright. Dimensions 2 inch Height x 6.6 inch Diameter
  • Combo Plaster Hump and Slump Mold. Hump mold shown, inverted. Dimensions Height: 2 in. Diameter 6.6 in. (top), 3.5 in. (bottom)
  • Pottery bowl made using slump mold: slab first textured then progressively slumped into mold. Porcelain clay, greenware.

Check back May 14, 2025

Price: $21.00

Shipping Weight: 2.3 pounds

Combined Slump and Hump Round Plaster Mold. Use the inside for slump molding, and the outside for hump molding your pottery using high and low fire clay.

The mold is lightweight making it easy to handle, especially when demolding hump molded pieces; Plus, shipping, which is based on weight, costs less. And, you are getting two distinct molds, each enabling unique techniques, for about the price of one hump mold of this size.

Size 1 Slump Hump Dimensions
Height Top Diameter Bottom Diameter
Hump Mold (Outside) 2 inches 6.6 inches 3.5 inches
Slump Mold (Inside) 1.7 inches 5.0 inches 2.5 inches

About the Slump Mold

The inside slump mold tends to have a rougher surface than the outer, smoother hump mold, and may have minor imperfections such as small air bubbles. We have not found that these to transfer onto the clay. However, every mold is handmade and differs. Any transfer would be slightly raised on the piece's outside, and can be smoothed away with a metal/hard rib after demolding.

The inner slump mold is generally not quite centered within the outer hump mold. You can see this in several photos where the rim varies a bit in thickness around the top perimeter. This should not affect slumped pieces (the slump mold form is uniform), unless you want to use the rim to make a flange, in which case you would need to base it on the width of the narrowest portion.

Slump Hump Mold - Round, Size 1 Specifications

Our hump and slump molds are made of pottery plaster and are designed to be used with high and low fire clay, including earthenware, stoneware, and porcelain.

Sizes of molds are in inches; Prices are in US Dollars. Cost of shipping is based on packaged weight. This mold weighs 2.3 pounds.

Made in the USA.

Sample pottery, when shown, is an example of pottery made with the mold. The price shown is for the plaster mold only.