Are there any adverse effects of elastomeric firestopping sealants being used in a hydrogen rich environment? Since those sealant are air-tight will they stop that kind of air transfer still in that kind of environment?
Hello Michael,
My name is Tyler and I work with Fire Protection Engineering department here at Hilti. I am going to check with our Product Care team about this question since we don't have any document stating if there will be any effects or such when the sealant is exposed to hydrogen rich environment.
Tyler
Hello,
I just heard back from Product Care team. Since Hydrogen is the smallest chemical molecule and gas tightness against H2 is always critical. Even metals are not 100% perfect. However, anything which helps against air will also help against H2. At least CFS-S SIL GG/SL will reduce the gas flow through gaps and cracks, but it won’t be fully tight. And be aware that we have no testing for H2.
We are also curious what is the application since there may be a better solution to use beside elastomeric sealant.