Tips from the Glass Academy: Know Your Glass – Restoration Glass

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Know Your Glass – Restoration Glass

SGE currently stocks four types of restoration glass. They are many more manufactured.

Restoration glass is trying to reproduce glass that was trying for uniform thickness and distortion free glass but not being successful. Before the current float method (floating molten glass on top of a ribbon of molten metal), glass was produced using a machine to draw the glass from its molten state into sheets. The result was some distortion. There was also a method where glass was mouth blown into cylinders and then flattened into sheets. This method resulted in some distortion and imperfections. 

Different types of restoration glass try to reproduce these looks. 

We stock:

IFAMAICO

IFAMAICO

Colonial clear antique.This is manufactured by St. Just. It is mouth blown. It replicates glass made pre-1900s. The sheet size varies but is usually 36”x36”. There is a light waviness in the glass and has an occasional seed or bubble. There are minor variations in the thickness and the flatness. It is not temperable.

CG120  Krosno

CG120

Krosno Light Restoration. Manufactured by Krosno Capital Group. It is mouth blown. It replicates glass made pre-1900. Sheet size varies but is usually 36”x36”. There is a light waviness in the glass and it has an occasional seed or bubble. There are minor variations in the thickness and the flatness. It is not temperable.

GNA Restover

GNA RESTOVER

Clear GNA restoration. Manufactured by Schott. It is the vertical draw method known as machine drawn. It replicates glass made 1900-1950. The sheet size varies but is usually 40”x30”. There is very light waviness and some directional draw lines are visible. No seeds or bubbles. There is good consistency in the thickness and the flatness. It is not temperable.

SP100VIN

SP100VIN

Clear Vintage. Manufactured by Spectrum Glass—discontinued in 2013. We still have some sheets and suppliers still have some sheets. It is a machine made glass. There are some directional machine lines, no waviness, seeds or bubbles. There is good consistency in the thickness and the flatness. Could probably be tempered.

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