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Tubing, Glass, Borosilicate - 4, 5, 6, and 7 tube diameters available. Borosilicate glass is superior to ordinary flint glass in both heat and corrosion resistance. It can be softened for heat-bending in a propane or Bunsen burner flame.
The 4 mm dia. glass tubing is for the smallest pre-bored
stoppers (such as #00). It is also useful if you've bored your own
#000 stoppers. The 4 mm is good for micro "closed-tube" tests (seal 4
to 5-cm sections at one end in the burner flame to make these tubes*); borosilicate glass doesn't melt and "cave in"
on the sample as readily as ordinary soda-lime or flint glass.
The 5 mm glass tubing is the most popular size and will
fit the common sizes of pre-bored stoppers (#1 through #6).4, 5, 6, and 7 mm tubing comes in bundles of 12 pcs. each. The length of each piece is approximately 24 inches (60 cm).
For bulk quantities please call 877-260-6039 or send us an email.
Borosilicate, 4 mm diameter x approx. 60 cm (2 feet) long. #C2423.........$12.95 / doz.
Outside Diameter ca.
4.0 mm
Wall thickness ca.
0.85 mmShip wt. approx. 1 lb.
4 mm Currently out of stock / special order. To order call 1-877-260-6039
Borosilicate, 5 mm diameter x approx. 60 cm (2 feet) long.
#C2424-DZ..........$14.95 / doz.
5 mm is the popular size that fits most common 1- and 2-hole stoppers.
Outside Diameter (O.D.) ca.
4.9-5.0 mm
Wall Thickness ca.
0.8 to 0.9 mmUniformity of O.D.: In a sampling of 20 tubes, we found... Mean O.D. 4.94 mm; Variance 0.001 mm; Average deviation 0.026 mm; Standard deviation 0.030 mm. Greater variation expected between batches.
Ship wt. approx. 1 lb.
Borosilicate, 6 mm diameter x approx. 60 cm (2 feet) long.
#C2425.........$16.95 / doz.
Outside Diameter ca.
6.0 mm
Wall Thickness ca.
1.0 mm 6 mm tubing is a little too big for the common sizes of pre-bored stoppers we have in stock, although some customers prefer it when a tighter fit is required in the stopper holes (wear heavy gloves and safety goggles when pushing tubing through a stopper hole; use soapy water to reduce the friction).
Ship wt. approx. 1 lb.
Borosilicate, 7 mm diameter x ca. 60 cm (2 feet) long
#C2426..........$18.95 / doz
Outside dia. ca. 7.0 mm
Wall thickness ca. 1.0 mm7 mm and up will not fit in the standard bored holes of most stoppers. You must enlarge the stopper holes by hand with the aid of a cork borer or a drill.
Larger Sizes of tubing are available in Flint Glass.
Tubing Cutter
Best for smaller sizes of glass tubing (< 8 mm O.D.) Press device
jaws together against tubing; rotate cutter around tube while squeezing
with moderate pressure.
Don't crush it into the glass-- press only enough so the wheel
can scratch the surface. A deep scratch is obtained gradually
by repeatedly turning the cutter / tube. Wear
safety goggles and gloves.
A few rotations and the tubing should be scored enough to give a neat,
clean break (wrap tubing in a cloth before snapping).
Score-and-snap method works well for small dia. tubing but is not recommended
for large dia. (10+ mm).Ship. wt. 1/2 lb.
#C2400. Glass tube cutter..............$11.99
#C2403. Replacement blade for tubing cutter...........$3.49
* Never heat a tube that's been sealed at both ends; it could explode and send glass fragments everywhere. There must always be some vent for expanding gases to escape.
Catalog
Glassware
Safety Goggles
Tubing, Crown
/ Flint GlassMain page
Important: Wear eye protection while working with glass tubing. Keep bystanders away. To lessen the danger of painful accidents, wear heavy canvas or leather gloves while heat-bending glass tubing or trying to insert it through a stopper.
Terms of Sale / Use
Copyright
Important
Shipping Note:
Small items, such as tubing cutters, stoppers, etc. can almost always ship in the same box with the glass tubing. However, large items such as filter flasks usually have to ship in a separate box, unless we use an oversize package. Multiple boxes or oversize packages can incur additional shipping charges that are not listed in your shopping cart.
Example: Suppose you order a 1000-mL filter flask and a bundle of glass tubing. This order will have to ship in two boxes. Your shipping cost will be roughly $7 more than what is listed in your shopping cart.
Example 2: Suppose you order two bundles of glass tubing, a pack of slides, and a tubing cutter. All these items will be shipped in a single box that is approximately 28 inches long. Sometimes the smaller items are hard to find amid styrofoam peanuts, but they will be there.
Safety Goggles
