Greetings All:

It has come to our attention that Hilti had a bad batch of C-100 glue. The batch went on sale January 23 and was pulled from the shelves on March 7. So, everyone needs to check the red date-marking on tubes purchased during this period. The expiration dates of 08/02, 09/02, and 10/02 represent the suspect glue. If you have any C-100 from these batches, contact Hilti (1-800-879-8000) and they will provide you with a refund or exchange for another glue. Depending on your specific application, HY150 or the new HIT-ICE might be suitable substitutes.

The HIT-ICE is something between C-100 and HY150, but more similar to C-100. Hilti is shipping us test-glue for evaluation, but the main difference seems to be a faster gel and cure time than that found with C-100 (a plus if you're fast and efficient...). The HIT-ICE glue uses a specific gun (#MD-1000) with a mixing nozzle (#HIT-M2). This glue was developed for low-temp use, but is fully-stable at higher ambient temperatures i.e. up to at least 130 degrees.

Hilti is planning to discontinue C-100 in 2004. However, they will have a new batch of C-100 ready at the end of April, 2002.

Please spread the word to those who may have bolted recently and/or those who may have purchased Hilti C-100 glue between January and March. This notice relates only to C-100 purchased from January 23 to March 7 --- previous batches of Hilti C-100 (expirations prior to 08/02) and other Hilti adhesives are not affected. Regardless, it would be worthwhile to check the expiration date on tubes of C-100 just in case.

If you want more beta on HIT-ICE, stay-tuned. For more info about the bad batch of glue and what to do if it has been used, read Skip Harper's message as well as the 'official line' from Hilti (below).

In the future, please keep in mind that Ushba Mountain Works now sells Hilti products (HY150, C-100, HIT-ICE, glue-guns, nozzles, bits, drills, brushes, etc.); contact us for more info.

Sincerely,
USHBA MOUNTAIN WORKS

Jim Bowes, General Manager

jim@ushba.com
www.ushba.com <http://www.ushba.com>
Tel. 970-472-9640
Fax 970-472-1999

Hiltigluers:

The latest batch of C-100 has too much air within the mixture. There is always a small amount of air, but this happened to exceed control amounts. Because of this, mixing of appropriate amounts of A and B may well not take place. Obviously, full strength won't be reached if so. They say tubes with an expiration date of 08/02 or later are suspect. Earlier expiration dates, ie 03/02 and 04/02 (the two earlier batches this year) are good.

"The Torque Test": There may be a way to tell if the glue is good or not in the field - according to Hilti/Mark Sackett (918-252-6947). One test suggested is to install an anchor and let it cure. Put a rod, maybe 18" (or so) long, thru the eye. Mark off 12" on the rod and put one mark at the eye. Hang 20 pounds from the rod at the other mark, ie 12" down the rod - away from the eye, and see if the anchor/eyebolt turns. If so, forget it. If not, they say its good glue.
There is considerably more detail re: this situation, but this will suffice for now.

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Hilti Announcement: Bad batch of C-100 (abbreviated)

"Our quality control department has identified the possibility that, for C-100, small amounts of the adhesive may develop an incorrect mixing ratio due to variable quantities of air in the cartridge. In extreme cases, particularly those involving smaller anchors, this could lead to improper curing, or failure to cure, with a resulting reduction in, or loss of, anchor performance."

"If you have any unused HIT C-100 with the expiration dates noted above, please return it immediately. For product that has been installed, we recommend you evaluate the possible impact, in particular applications which are higher risk, such as overhead, nonredundant (single fastening-point), or safety-related. Conducting a field pull test, or applying a test torque, are two effective methods of identifying anchorages that are potentially affected."
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