TL-0021 — Disposal of PROCOR® Waste and Used Containers Technical Letter

Although PROCOR® is a relatively safe material in use and storage and is classified as non-hazardous under the US Environmental Protection Agency and Department of Transport regulations it is important that waste materials be disposed of, in a safe and environmentally conscious way and in accordance with the appropriate local regulations.

Empty Containers

Empty containers (pails or drums) of unmixed PROCOR® Part A, Part B or mixed A and B can be disposed of as general industrial waste. In general this means that they can be placed in site dumpsters along with other site trash though local regulations, may vary and should be checked with the local waste collection company. Such empty containers must meet the US EPA definition of empty as follows:

All wastes have been removed that can be removed using methods commonly used to empty that type of container, and Less than one inch of residue remains in the container.

Note that PROCOR® Part A reacts with Part B and also with water. The reaction is exothermic resulting in release of fumes and heat. Sealed containers can explode. Do not seal containers for disposal.

If full or part used containers must be disposed of, or if for some reason it is not possible to empty a drum or pail to less than one inch then the container and contents must be disposed of as chemical waste.


Dispose of PROCOR® waste in accordance with all applicable regulations. Consult all regulations (federal, provincial, state, local, etc.) or a qualified waste disposal firm when characterizing waste for disposal. There are many local chemical waste disposal companies around the country that can be found via local trade directories. If there are no local chemical waste disposal companies then the following national companies will be able to help:

  • Safety Kleen 1-800-323-5040
  • Clean Harbors 1-800-444-4244

When contacting these companies to arrange disposal it is important to have the latest copy of the SDS for the product in question which can be downloaded or received via fax by calling toll free at 866-333-3SBM (3726).


Do not allow material to saturate ground, enter drains, runoffs, streams, lakes or ground water. Immediately absorb all spills with a dry inert material, such as sand, and dispose. Report all spills into or with the potential to reach navigable (surface) waters of the United States or adjoining shorelines, as soon as there is knowledge of the spill, to the National Response Center 1-800-424-8802. | North America Customer Service: +1 (877) 423 6491

GCP Applied Technologies Inc., 2325 Lakeview Parkway, Suite 450, Alpharetta, GA 30009, USA
GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6
This document is only current as of the last updated date stated below and is valid only for use in the United States. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2023-02-14