COE90 Iridescent

Creating beautiful works of art requires proper planning. You want to select the best materials to ensure that you can create high-quality and durable pieces while ensuring an enjoyable experience. Get all the best tools and supplies from Art Glass Supplies. Our shop carries a wide collection of COE90 Iridescent sheet glass. These materials are unique and fascinating because they change color depending on the available light. Note that iridescence is a phenomenon wherein certain surfaces gradually change their colors as the angle of illumination changes. The COE90 Iridescent glass is perfect for those who want to create magnificent pieces that will stand out from the rest. Keep in mind that all the materials in this category have a coefficient of expansion (COE) of 90.

What is Iridized Glass?
Iridized glass is sometimes called Irid for short. The colorful effect of the iridized glass is created by applying stannous chloride at very high temperatures. The coating leaves a thin metallic coating on the glass surface. 
 
What colors are available in an iridized glass?
 We can have any glass manufactured in an Irid. Rainbow,  Gold, and silver are the most common fused glass iridescent coatings. Irid patterns can be created using resists before the chemical solution is sprayed on the glass. 

Is Irid or Iridescent glass food safe?
The iridescent surfaces are food safe and permanent at full fuse temperatures. 

What is COE?
When we talk about COE, we are talking about the “Coefficient of Expansion” of the glass we are using. COE is a measurement of the rate that glass will expand and contract when heated and cooled. To fuse multiple pieces of glass, you must match the COE’s.  Fusible glass manufacturers test their glass to guarantee the COE (sometimes referred to as "tested-compatible").

What if I mix COE 90 and COE 96 in one project?
Your project will crack! Think of taking a baking dish and a glass dinner plate and trying to melt them together.  When they are both liquid and hot, they will mix easily. The problem is that as they cool, the glass from the baking dish will harden before the dinner plate. We know this because the baking dish was designed to withstand much higher temperatures. Because the glass will get hard at different temperatures as it cools, we know it will break on the lines where the different kinds of glass meet.