Date: Wed, 21 Dec 2011 12:07:10 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Sender: DCHAS-L Discussion List <dchas-l**At_Symbol_Here**>
From: ILPI <info**At_Symbol_Here**ILPI.COM>
Subject: Re: Eye protection for working w/borosilicate glass
In-Reply-To: <37E2AFAA-B661-4D67-B4EE-BC72BE17272A**At_Symbol_Here**>

Didymium glasses a must for borosilicate glasswork.  Generic sunglasses are not sufficient.  See our Scientific Glassblowing Learning Center at for information about these kinds of glasses and their various permutations.   Technical data is here:

You can find a wide variety of glasses and face shields at these two vendors - they offer far more than just the basic set of glasses you're likely to find from the major lab houses.  Neither I nor my company has any affiliation with these:

Rob Toreki

Safety Emporium - Lab & Safety Supplies featuring brand names
you know and trust.  Visit us at
esales**At_Symbol_Here**  or toll-free: (866) 326-5412
Fax: (856) 553-6154, PO Box 1003, Blackwood, NJ 08012

On Dec 21, 2011, at 10:27 AM, Secretary, ACS Division of Chemical Health and Safety wrote:

One of our labs uses sealed borosilicate glass tubes for some experiments.  A tech seals several dozen of the tubes with a torch (I know he is using oxygen, I think the fuel is propane, I know it is not acetylene) at one time.  He was complaining about the brightness of the light, so is now wearing safety sunglasses that block 99+% UV.
Anyone have experience with something similar to this?  I have seen the didymium glasses that hobbyists use for glass blowing, but I am not sure what eye protection to provide.  He has tried welders goggles, but found them too dark.
Phil McKittrick
Nalco Company

Previous post   |  Top of Page   |   Next post

The content of this page reflects the personal opinion(s) of the author(s) only, not the American Chemical Society, ILPI, Safety Emporium, or any other party. Use of any information on this page is at the reader's own risk. Unauthorized reproduction of these materials is prohibited. Send questions/comments about the archive to
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.