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Product Features
Create blown glass bulbs with ease - perfect for a quick gift!
Eliminate the time consuming method of "pulling points" from glass tubes
1mm wall, 28mm diameter before blowing
Sold in a pack of 10
90 COE
Frequently Bought Together
This item: Sealed End Clear Cylinder 10 Pack - 90 COE by Glaskolben
$29.95
Create Custom Blown Ornaments The Simple Way
Making custom glass ornaments is easy with Glaskolben pre-blown clear glass cylinders with blow pipe ends. Glaskolben may be blown freehand into a ball using a Hot Head torch (item# 7329) and MAPP gas, eliminating the time consuming method of "pulling points" from glass tubes. Roll hot cylinder into frit before blowing to decorate. Pull into an elongated shape with tweezers (item# 425707).
Annealing temperature is 950° F. 1mm wall, 28mm diameter before blowing. 10 cylinder pack, includes instructions. 90 COE compatible.
Step-by-Step
Creating blown glass is easier than you think! See additional images to download an illustrated step-by-step guide.
Grouping of ornaments created by artist Tia Collin.
Pros : It can be a bit expensive to play with these, but it is a great way for me to get into glass blowing. I bought the hot head torch and that made a big difference. It will take some practice but I plan to continue to get these handy items and hope to make some great ornaments.
Cons : For someone who is not familiar with glass blowing the cost can be high considering that practice will mean wasting these tubes.
Other Thoughts : My hope is to be able to crush the unused blow tube and the ones that I messed up and use it for beadmaking or fusing.
Pros : The pre-worked tubes have eliminated half the work of blowing glass. It's a wonderful beginning to an amazing art form. Give these a try, and you too will be hooked on glass work. Enjoy!
Cons : Be patient, it's not the material that leads to problems. It's you trying to rush. Insure proper annealing.
Pros : This was so fun. I haven/t worked with a torch much, but I had a ball with this. Out of 14, I got 2 really good ones, 6 really fun ones, and 6 total rejects. But it was fun. This just means that I'm going to have to take a torch class in las vegas.
Cons : Needs to come with some directions. I found some on the internet, but it would have been easier if it came with them.
Other Thoughts : Everyone who's ever thought about blowing glass should try this. You'll realize why they charge so much for the classes. It was FUN!!
GLASKOLBEN cylinders are pre-blown clear glass cylinders with blow pipe ends, used for blowing glass balls. Glaskolben cylinders are used throughout Europe for making Christmas tree ornaments. "Glaskolben" is a German word that translates to "glass bulb." WATCH A VIDEO ON BLOWING GLASKOLBEN ORNAMENTS. SUPPLIES/EQUIPMENT Torch head for Mapp Gas use Gas/oxygen torch Glaskolben cylinder 90 COE frits and powders for decoration Ornament cap and loop set (available in gold or silver) COMPATIBILITY Glaskolben is compatible with Uroboros and Bullseye 90 COE glass frit and powders. Do not use any other COE as it may cause stress or fracture. HOW TO BLOW AN ORNAMENT 1. Light the torch and adjust the flame - a broader flame is better. Select a Sealed End Cylinder Glaskolben and introduce it into the back of the flame away from the torch. Rotate it as it is brought into the hotter area of