Wissmach Clear Luminescent - 90 COE

Unit Size* Price Qty 
medium 9" x 15" $9.65 USD
large 15" x 19" $19.25

Item# W0090L
In Stock Usually ships in 1 to 2 business days.

Product Features

  • Luminesent coating creates a variety of unique effects
  • You control the results; free technique sheet provided!
  • Ideal for reverse fusing projects; luxury glass at an affordable every day price
  • Excellent for fusing - 90 COE

Product Description

Luminescent coating is unlike anything else - offering up options for intense color, subtle shimmer or the ability to make it disappear entirely!
The coating on Luminescent glass is similar to iridized coatings, however it reacts completely differently when fired. It's ideal for reverse fusing projects, where the front of your piece is face down on the kiln shelf and you build backwards. This allows you to create in a whole new way, and your art will look its best from both sides!

Luminescent coating is applied to Clear Transparent glass, ideal for creating layered art. Standard 3mm thick glass offers affordable luxury for your fusing projects. 90 COE.

Want to learn more about working with Luminescent glass? Dowload our free Tip Sheet.

Primary image left side shows uncoated base glass; right side shows Luminscent coating. Second image shows front of glass; third image shows back of glass. Fired examples shown completed with light blue and dark blue to illustrate the difference in intensity when fired. Transparent project image shown on both white and black backgrounds to show intensity. Luminescent coating is on the back side of the platter. Created by artist Delphi Expert Jeannette W..

Get different effects depending on how you use it:

• Fire coated side down on a kiln wash dusted fiber shelf to intensify the coating.
• Fire coated side down on a kiln washed shelf or shelf paper to keep a brilliant luster.
• Fire coated side up, and the coating will stay vibrant on dark colors or fade to a beautiful delicate sheen on light colors.
• Cover the coated side with a piece of clear and the coating will fade away completely.
See examples in additional images.

Delphi Tip: Fire glass luminescent side down to ensure the coating will remain intact for additional firings. In subsequent firings use the lowest temperature required to achieve desired results. Delphi Expert Jeannette W. suggests a maximum temperature of 1400°F.

Firing schedules courtesy of Petra Kaiser and Wissmach Glass.
Standard Fusing Schedule – 2 layers thick
Segment 1: 600°F/hr up to 1000°F hold for 10 minutes
Segment 2: Full/9999 up to 1410°F hold for 10 minutes
Segment 3: Full/9999 down to 900°F hold for 60 minutes
Segment 4: 100°F down to 700°F hold for 1 minute

Tack Fuse, Polishing and/or Slumping into a mold
Segment 1: 300°F/hr up to 1000°F hold for 10 minutes
Segment 2: Full/9999 up to 1300°F or 1350°F (depending on your desired results) hold for 10 minutes
Segment 3: Full/9999 down to 900°F hold for 60 minutes
Segment 4: 100°F down to 700°F hold for 1 minute

Draping over a mold and/or polishing
Segment 1: 300°F/hr up to 1000°F hold for 10 minutes
Segment 2: Full/9999 up to 1200°F or 1220°F (depending on your desired results) hold for 10 minutes
Segment 3: Full/9999 down to 900°F hold for 60 minutes
Segment 4: 100°F down to 700°F hold for 1 minute

Note: not all kilns are alike. Your kiln size, controller type, and individual project may require some alteration to the schedule for best results.

Delphi Tip: Keep a firing log to make it easy to replicate your favorite projects.

Wissmach glass often has rounded corners as shown in additional images. Glass pieces may include factory rolled edges.

Photo above is a general representation of glass colors. Colors may vary. Sizes are Approximate.

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