Boro Crow Green Iridized Tubing

Item Name:

Boro Crow Green Iridized Tubing

SKU:

BCROWGREENT

Description:

Boro Crow Green Iridized Tubing is a borosilicate tubing product manufactured by Boro Crow Labs with a specialized inert metallic coating applied to the glass surface. The coating creates a range of color effects that shift from blue to green to magenta sparkle, and it does not off-gas when exposed to direct torch flame. The tubing measures 25mm outer diameter by 4mm wall thickness and is made from Asian borosilicate glass.

In lampworking, iridized coated tubing is chosen when you want the visual effects of dichroic glass without the premium cost. The coating is durable enough to withstand flame work, making it suitable for creating pieces with striking color shifts and iridescent effects. However, this product must be sleeved and encased to be worked properly, meaning the iridized tubing cannot be worked as a standalone hollow form but rather must be protected within clear borosilicate glass during the heating and shaping process.

How it is used:

Begin by selecting a clear borosilicate tube or rod that will serve as your sleeve or encasement. Warm both the iridized tubing and the clear sleeve gradually in a neutral flame to prevent thermal shock and ensure even heat distribution. Once both pieces are at working temperature, carefully bring them together and create a seal while maintaining steady rotation and alignment.

Heat the sealed assembly evenly, keeping the flame neutral to avoid damaging the iridized coating on the outer surface. Work slowly and deliberately, allowing the coating to remain visible while the clear glass protects it from direct flame contact. You can then shape, blow, or manipulate the assembled piece as needed. For detailed technique guidance, consult the instructional video referenced on the product page to ensure proper sleeving and encasing methods.