About Us

Joy-Mark, Inc. was formed in 1977 with manufacturing facilities in Cudahy, WI. We proudly support our customers with two production facilities operating highly automated vacuuming forming and mixing processes where we produce a wide variety of foundry feeding aids and insulating metal handling products.

GTP Joymark, LLC was formed in 2013 as a joint venture between Joy-Mark, Inc. and GTP Schaefer GmbH (www.gtp-schaefer.com) to bring new technology for the production of high density exothermic risers with advanced breakers and precision controlled insulating risers to the United States. With current production alongside Joy-Mark, Inc. operations, we are able to leverage our manufacturing capabilities and national distribution network to service our customers with a comprehensive catalog of foundry feeding aids.

Joy-Mark Inc. currently offers products from all companies through direct sales and a national network of distributors to cover the U.S., Canada and Mexico with growing export sales to South America and Europe. For more information on our products and how to buy from Joy-Mark, Inc. and GTP Joymark, LLC, please contact us today.