DW
I'm not a "fire person" but I did google the references on the foam can such as ASTM E 84 and UL 1715. I was looking for the general temperature ratings but instead found language about "propensity to burn, surface flame spread, and smoke developed index, all in a Steiner tunnel test." Plus, UL spoke about a code of "15 minute thermal barrier." I couldn't find if the Great Stuff Fireblock foam I found met those standards or not, but those code standards were referenced on the can. I saw no mention of an actual temperature ratings in any of the literature I read.
I'm no where near an expert in this field. It is just like sending me to a Target store to buy some female personal items without a cell phone with me. I'm I sure I could find the right department, but making the final selection of what I was sent for would be a strike out.
I am therefore asking this forum to step in and be my "cell phone" to tell me if this Fireblock foam is OK to use in my future firewall, if anyone knows. I had hoped that the simple answer to my original question would be: YES, it is what we use all the time or no, it doesn't meet bla bla bla standards.
Until then, I am glad WalMart has their no hastle return policy.
Bill