Shop Glass Supplies
Bullseye Glass
Explore a wide selection of Bullseye reactive glass, including frit, rods, powders, and sheets. Browse our collection and get expert advice from experienced glassworkers with decades of knowledge.
Torchwork Supplies
Find everything you need for torchworking, whether you're using Pyrex borosilicate, Effetre, Bullseye, or Satake soft glass. Shop our extensive selection of glass rods, tubes, and essential tools to support your craft.
Stained Glass Supplies
Find all your stained glass supplies here, including patinas, solder, lead, zinc, flux, and a wide variety of tools. Then discover Kokomo, Wissmach, Youghiogheny, Ruth Glass, Bullseye, Oceanside, Lamberts, and vintage & rare glass, all here at Potekglass.
Repairs & Custom Work
Preserve your stained glass windows, repair Tiffany-style shades, and restore bent lamp panels with expert care. Our skilled artisans bring unmatched expertise to every repair, ensuring your stained glass treasure is beautifully restored. With experience in a wide variety of repairs, we deliver the best solutions to protect and revive your stained glass. Looking for a custom stained glass window?
Contact us today to discuss your vision!
If you like color, you'll love working with glass.
Your trusted source for stained glass. Expert advice, in person help, or email support here for you every step of the way!
Browse Classes
Torch Classes
Learn the tricks of the trade for creating art on the torch. Borosilicate and soft glass classes teach the specifics for individual glass technologies. Learn glass blowing, sculpture, and beadmaking for the hot glass worker.
Stained Glass Classes
Join us for a stained glass class! Come learn the copper foil method, leaded glass techniques, and even learn how to make your own patterns. Classes are available at the beginner, intermediate, and advanced levels, so you can always find your perfect fit.
Kiln Classes & More
Learn the art of cutting and firing glass in the kiln! In these courses students will learn to cut patterns out of sheet glass, understand firing schedules, and work with a variety of glass formats to design with glass.
Don't miss our other glass classes, including glass mosaic, casting, and pattern design classes.
From Our Customers!
"We took the Basics from Boron class here. Malcolm was a great, easy-going instructor who adapted to each person's needs and made the experience both safe and fun. We went in having never worked with glass before but came out feeling like we had enough of the basics to come into one of their open sessions to play around and come up with some of our own glass creations. Lots of fun. Highly recommended."
— David Armstrong
"I took the Beginner’s Stained Glass. I appreciated an experienced and skilled expert teaching the class, answering questions that have come up many times before."
— Sarah Collins
I heard about Potekglass when I called another glass company to try and track down some stained glass. I would definitely recommend Potek to a friend. I think it's so valuable to have workshops and lessons like those you offer.
— Lisa Franchette
"I was really happy with the class. Malcolm is obviously used to working with beginners and non-artists."
— Emily Harper
"Malcolm was knowledgeable, laid back, and had a great sense of humor. Didn’t get impatient with my inability to light my torch! Always helpful. Great class."
— Jonathan Pierce
"So much fun (even though I wasn’t very good). Everyone I told about it was envious. I hope to come back for another class!"
— Olivia Reed
"Malcolm is an amazing instructor. Great music selection during class :)"
— Natalie Scott
"Great experience for all ages. We had an 11-year-old plus 2 adults taking the class and everyone enjoyed it."
— Michael Brooks
From Our Family to Yours
We are dedicated to your artistic pursuits in glass. Whether you are looking for a signature piece of stained glass or want to create your own fused glass platter, we have a staff with over 50 years of combined experience in creating, repair and teaching in the glass crafts. Learn from the best, get expert advice on supplies or pursue your own work independently in our studio. Just want to have a good time? Schedule a team-building art experience, community art, or corporate event.
Based in Minneapolis, Minnesota, Potekglass was founded by artist and glass worker Malcom Potek. Whether you're looking for glass art, lighting elements, or custom architectural glass pieces, Potekglass is committed to quality design, exceptional service, and helping people experience the beauty of glass.
Custom Projects and Artwork
At Potekglass, we love helping architects and interior designers realize their client's vision for their commercial or residential spaces. Collaborating with design professionals to create the perfect enhancements to their designs is our specialty.
Artist in the World
ARTIST SPOTLIGHT: Aja Vaz
Aja Vaz is a glass flameworker based out of Massachusetts whose work centers around the creation of hollow, soda-lime beads. While Aja’s earlier work focused on on-mandrel beadmaking, the majority of her current work is off-mandrel, created using a mini blowpipe and finished with tumble etching to remove shine.
About her work, Aja says, “Discovering how much I loved etching the glass helped shape my aesthetic of abstract organic. My inspiration and color ways are influenced by the many places we lived while hubby was active duty and all the weathered parts of nature. Rust, lichen, rocks, bark, and those odd and easily missed spaces between catch my gaze and find their way into my work.” (Quoted from Aja’s Website)
CONTINUED: Aja Vaz
Another element that influences Aja’s work is recurring shapes, particularly ‘U’ and ‘X’ shapes. Aja muses in Glass Bead Evolution (ISGB Newsletter) that perhaps she likes making these shapes so much because the ‘U’ shape became a U-turn, associated with the way she and her husband moved around for his military service. The ‘X’ shape, Aja says, has been there for a long time; it marks the spot. Both shapes are related by their connection with maps and directional things, and both can be seen across her work.
See Aja and her upcoming work:
- Online bead show (October 17-18) in the Facebook Group ’Artisans Open Market,’
- Puffy mandrel hollow bead course at Glass Craft & Bead Expo in 2026.
- Aja is currently developing an online course for the ISGB Education website for 2026.
Team-Building Glass Art
Onsite School Fieldtrips
Potekglass offers introductory classes to students in elementary and middle school. Students can participate as a class or individually. Summer art camps available.
Corporate Events
Your company’s targets and core values will guide the group in developing a meaningful piece of art made for display in your place of work.
Artist In Residence
With 15+ years of experience developing educational residencies, we have a love of teaching that gets everyone involved and excited for the problem-solving needed to pull off these public art projects.