Glass Terminology For Beginners

Acid Etching
This is the process in which you etch the surface of glass with hydrofluoric acid. For decorative acid etching, the glass must first be covered with wax before scratching in the design.

Acid Stamping
Stamping is done by using a device that is almost identical to a rubber stamp to apply the hydrofluoric acid.

Annealer
A oven that is used to cool glass down. The oven starts cooling the glass at 900 degrees Fahrenheit and slowly brings the glass down to room temperature over a course of 12 hours.

At-the-Fire
Process of reheating blown glass within the Glory Hole.

Bar
One single piece of glass that is created by fusing multiple canes/rods together.

Blobbing
Technique used for decorating hot glass just by dropping blobs of colored glass onto the surface of the glass piece.

Blowing
Technique used for creating a glass object by inflating a large mass of molten glass with a blowpipe.

Carving
Carving is done by removing any excess glass off of the object you are working on.

Check
A crack in a glass surface.

Double Overlay
Putting two coats on a glass object.

Embossed
Lettering that is raised or lowered on the surface of glass.

Faceting
Grinding and polishing a glass object.

Gather
When molten glass is placed at the end of a blowpipe.

Glory Hole
An oven that is used heat and reheat glass.

Hand Blown
Handmade glass objects.

Jacks
A set of large tongs that create score lines within the neck of a glass piece.

Kevlar Gloves
Gloves that are high heat resistant.

Paddle
A wooden tool that is used to flatten the bottom of a glass object.

Piece Mold
A glass piece that is made out of more than one part.

Sandblasting
The process of removing a layer of glass.

Smalt
Colored glass.

Tweezers
Tweezers are used to pull and pinch glass.