Glass Slumping

The process with glass slumping is similar to glass fusing but it does not require as much heat. During the heating phase glass is brought slowly up to around 1000 deg f. At this temperature the glass begins to soften and the edges will begin to glow. At around 1200-13000 deg. f. the glass will take the shape of your mold and the pieces, if any, will begin to stick together.

Challenges

The main concerns when heating glass depend on the thickness and diameter of the piece. The larger the piece is the slower you have to heat it to avoid thermal shock. Other challenges include knowing the right temperature for your particular kind of glass and making sure you anneal the piece correctly to avoid weaknesses in the glass.

Market

With the reemergence of the craft market, glass work in general has made a noticeable comeback. Many of the major wholesale shows are becoming predominantly glass because of its wide-range appeal and utilitarian capabilities.

Kilns

Though we do have glass specific kilns like the chameleon series, glass slumping can be achieved in any of our kiln series. All of our automatic control options come with pre-programmed glass slumping schedules which can also be customized by the user.

Recommended Kilns

The L&L Flagship Kiln: Six popular Easy-Fire models. Multi-Zone control. Sectional. Easy maintenance. Sizes from 2.5 to 10.2 cubic feet. Most models and voltages are Cone 10.
School-Master kilns are designed specifically for K-12 schools with a Five-Year Warranty. One-touch simple control. Sectional. Graded elements. Cone 6 but with plenty of power for long life.
The perfect hobby kiln with a 12 foot long 30 amp cord for plugging into a dryer outlet. One-Touch Simple Control. Cone 10.
High Power Production version of Easy-Fire Series with "Quad" element design. Multi-Zone Control. Sectional. Easy Maintenance. Sizes From 6.7 To 10.2 Cubic Feet. Cone 10.
A Special Design Just for Crystalline Glaze. Cone 12. Multi-Zone COntrol. Type S Thermocouples. K25 firebrick. Quad elements.
Small Kiln for Hobby Use and Glaze Testing. One-Touch or DynaTrol program controls. Various voltages and amp ratings.
Affordable front-loading kilns with professional features like an 4-1/2" K25 arched roof, door elements, cooling vent and 5" of multi-layered insulation. Multi-Zone DynaTrol. Cone 10.
Large Heavy-Duty Front-Loading Kilns. Includes 4-1/2" K25 arched roof, door elements, and 5" of multi-layered insulation. Multi-Zone DynaTrol. Cone 10.
Customizable Automatic Zoned Top-Loading Kilns - up to 45" tall. Multi-Zone control. Sectional with plug in control panel. Easy maintenance. Sizes from 2.6 to 17 cubic feet. Most models and voltages are Cone 10.
Jupiter Kilns that pull apart for easy loading of sculpture
Large Square and Rectangular Production kilns. Multi-Zone Control. Floor-standing panel. Spring-loaded hinge. Sectional. Easy Maintenance. Sizes From 5 To 34.5 Cubic Feet. Cone 10.
Bell-Lift Production Kilns
100 cubic feet Bell Lift Kilns for Industry. Cone 10.
An International Kiln for Hobby/Household Use where household current is 220 to 240 volts. Cone 10.
Custom Configured and Designed for Industrial Applications