QA

Quick Answer: What Is The Difference Between Slumping And Fusing Glass

Glass slumping vs glass fusing While slumping allows you to reshape glass, fusing glass enables you to combine sheets of glass that have the same coefficient of expansion, and ultimately create unique surface patterns on the glass.

Can you fuse and slump glass at the same time?

No. Fusing requires higher heat than slumping and should be done first, followed by a second firing.

What is a slumping mold?

Slump molds are concave forms that work just like other molds in that clay is draped over the surface of the mold. With slump molds, the inside surface of a pot is exposed, while the outer face is in contact with the mold.

What is a hump mold and how is it used?

Hump Molds – The clay is draped over the mold creating a convex shape and used when you want to add feet, handles or other embellishments to the outside of the shape.

How long does it take to fuse glass in a kiln?

Your glass should be fully fused with in 20 minutes, but kilns do vary. So watch your glass. Do not let it stay so long at 1450° that you loose the square shape of the tile. Once your glass is ‘done’ pull out the peep hole plug & open the kiln lid all the way to “flash” vent your kiln.

How much is a glass kiln?

Soul Ceramics guarantees the lowest prices available, with glass fusing kilns ranging from just over $300 to close to $6,000. Within the under $700 price range, Soul Ceramics offers the Olympic Kiln – HB86E for $747.99 and the Evenheat Glass Kiln – Studio Pro STP for $739.99.

Can you sculpt glass?

This hot viscous glass can be used in glass blowing, sculpting, and casting into molds. Work such as glass sculpture, hand blown bowls, vases, goblets, and ornaments are commonly made with hot glass from a furnace. Cast glass or ‘glass casting’ is usually done by ladling the hot molten glass into a mold.

Can you slump glass in a ceramic kiln?

Because of the lower temperatures involved, all ceramic kilns are capable of firing glass. Slumping (melting the glass into a mold) does not need the element to be in the lid. So if all you’re doing is slumping, such as wine bottles or already fused sheets of glass, any ceramic kiln will be fine.

What is the difference between glass blowing and glass fusing?

With fused glass we can create glass art, glass tiles, and jewelry, as well as larger, functional pieces like dishes, bowls, plates, and virtually anything you can imagine. Glass blowing or hot glass, involves three furnaces and a special tool called a blowpipe.

What is float compatible glass?

The concept of float compatible accessory glass is to allow you to work; with the most affordable and readily-available base glass – float – and take it to the next level.

What is the difference between a drape mold and a slump mold?

Convex plaster forms are known as “hump molds” or “drape molds”, while concave plaster forms are known as “slump molds”. Over time, usually 20-30 minutes (up to an hour for thick slabs of clay or the largest molds) the plaster will draw the moisture from the clay, producing leather hard complex clay shapes.

Can you slump 3mm glass?

It’s unusual to slump a single 3mm sheet of glass.

At what temperature can I open my glass kiln?

No matter how long you have been fusing glass, opening the kiln after a firing is always exciting. Too often people will get a little impatient and try to open it too soon. Wait until the kiln has cooled below 125°F to open your lid. If you open it too soon, the glass could be susceptible to thermal shock and break.

How do you slump glass in a kiln?

Fire the kiln to a temperature between 1200 to 1300°F (648.9 to 704.4°C), keeping an eye on the glass through the peephole. The glass will begin softening and turn glossy when the temperature nears 1000°F (537.7°C) and start slumping as it nears 1200°F (648.9°C). Make notes of temperature and slumping time.

What are slumping molds made of?

This example explains how molds are made from clay. There are two basic types of molds in glass slumping. Hump molds are used to form the interior of the slumped glass. The glass sheet or piece is placed on top and slumps over it, it at the right temperature assuming the same shape.

Can you use any glass for fusing?

You can always use fusing glass in a regular stained glass project, but you do not want to use regular stained glass in your fusing projects. If you also choose to try fusing glass with other COE numbers, you will need to keep that glass separated from the 96 COE glass. Clear glass is used in many fusing projects.

Can you slump float glass?

Because float glass is harder than art glass, it’s even more resistant to slumping. glass is so much harder than art glass, it require much higher temperature.

What temperature do you need to slump glass?

What temperature do you need to slump glass? Slumping temperatures are typically between 1200 to 1300 degrees Fahrenheit. The glass will begin softening and turn glossy when the temperature nears 1100 degrees Fahrenheit and will start slumping as it approaches 1200 degrees Fahrenheit.

Why is it called float glass?

Float glass owes its unique name to the process by which it is manufactured wherein the molten glass is introduced into a bath of molten tin, causing the glass to float freely.

Can you melt glass without a kiln?

There are two ways to safely melt glass without a kiln: lampworking and using a microwave kiln. Lampworking involves the use of a torch to melt glass to the point of being easily manipulated. A microwave kiln melts glass effectively for small fusing projects.

Can you slump glass in a microwave kiln?

The layers of glass create a new single piece of glass. You can then go on to slump the fused glass using a mold to create bowls, plates, and all kinds of art. You can’t just super heat glass because it will shatter so you slowly ramp up the heat in the kiln until the glass melts and then slowly ramp the heat down.