Wissmach 90 is made for glass fusing and kiln forming. Special care is taken to avoid devitrification and all our glass is tested to fire with any other glass that is labeled COE 90.

All of the below colors are also available with our luminescent coating.

See the project pages for more information about firing. Become an active member of our site and submit your artwork made with Wissmach glass.

Before firing

Clear fired on clear

90-01 Transparent Clear 90-04 Transparent Light Blue

Before firing

Single layer fired

Light blue fired on clear

Light blue fired on light blue

90-05 Transparent Light Green

Before firing

Single layer fired

Light green fired on clear

Light green fired on light green

90-06 Transparent Coral (striker)

Before firing

Single layer fired

Coral fired on clear

Coral fired on coral

90-07 Transparent Light Grey

Before firing

Single layer fired

Light grey fired on clear

Light grey fired on light grey

90-08 Transparent Light Amber

Before firing

Single layer fired

Light amber fired on clear

Light amber fired on light amber

90-09 Transparent Violet

Before firing

Single layer fired

Violet fired on clear

Violet fired on green

90-10 Transparent Orange Red

Before firing

Single layer fired

Orange/red fired on clear

Orange/red fired on orange/red

90-11 Transparent Bright Green

Before firing

Single layer fired

Bright green fired on clear

Bright green fired on bright green

90-12 Transparent Bright Blue

Before firing

Single layer fired

Bright blue fired on clear

Bright blue fired on bright blue

90-13 Transparent Dark Red

Before firing

Single layer fired

Dark red fired on clear

Dark red fired on dark red

Before firing

Single layer fired

90-02 Opaque Black

Before firing

Single layer fired

90-03 Opaque White

Before firing

Single layer fired

90-15 Opaque Yellow

Before firing

Single layer fired

90-14 Opaque Orange-Red 90-16 Transparent Champagne (striker)

Before firing

Single layer fired

Champagne fired on clear

Champagne fired on champagne

90-17 Transparent Yellow

Before firing

Single layer fired

Yellow fired on clear

Yellow fired on yellow

90-20 Red/Yellow            transparent

Wissmach is known for its great color mixes. Our new line of PRISMA glass is made for kiln forming. We make them in both Wissmach 90™ and Wissmach 96™.



90-19 Red/Crystal
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The Paul Wissmach Glass Company
Your  Source for Colored  Sheet Glass -- Hot and Cold! like us contact us 90-18 Crystal/Black