Is there a UL listed joint material to seal a U419 gyp wall to an existing concrete wall or column?
Greetings Mackenzie,
Thank you for using ASK Hilti!
For your reference, we have attached joint systems WW-D-0040 and WW-D-0068, which provide 1-hr. or 2-hr. fire-rated solutions for joints between U400 series gypsum walls to concrete walls. WW-D-0040 allows multiple options for our sealants while WW-D-0068 utilizes our CP 606 sealant.
If your application does not match one of these systems, we can address your application through an Engineering Judgment, which will be a custom detail showing your exact application with the firestop components required to maintain the stated ratings.
We are proud to announce the launch of the HILTI CONSTRUCTION PLATFORM (HCP), our company’s new engineering service website. This platform will be the home for all of your Fire Protection Design needs. The platform enables you to create new Engineering Judgment (EJ) requests, submit revisions to previously completed EJs or connect with an FPE on a question. HCP also enables you to track the status of your request.
You can find more information on how to access this new platform here: https://www.hilti.com/ej (US) or https://www.hilti.ca/ej (Canada.) If you have any questions or require assistance navigating the platform, please call Customer Service for help at 1-800-879-8000 (US) or 1-800-363-4458 (Canada.)
Thank you for choosing Hilti as your firestop experts!
Best Regards,
Ryan Kolodetsky
Fire Protection Engineering Team


