A local building inspector is requesting confirmation from Hilti that the FS ONE Max firestop sealant is suitable for use on steel pipes going through "precast concrete" walls and floors. Your literature shows the product is good for regular concrete, masonry and dry wall but it does not list "precast concrete". Based on your engineering judgement, can you confirm this product is acceptable for use on precast concrete? Dana Baalbaki (Hilti Fire Protection Technical Consultant) suggested I ask the question on this site.
Hi Jairo,
Please use the Hilti Construction Platform link https://hcp.hilti.com/dashboard to submit an Engineering Judgement request as referred by Dana in our earlier reply. If you have any other questions, please send us an email on cafirestop@hilti.com