Is Red Devil 0915 Foam & Fill Fire Block flammable?

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So, the Red Devil 0915 Foam & Fill Fire Block isn't flammable once it's cured. That’s why it's a go-to option for filling and sealing gaps around the house or even in business spaces. The manufacturer describes this foam as specifically made to block fire and smoke, meeting fire safety standards.

A cool thing about it is that it expands quite a bit when you apply it—about three times its initial volume, according to our data. This can really help seal gaps well, but be careful not to overdo it or you might end up with more foam than you planned for.

Lots of people find it does a great job insulating and sealing against drafts, noise, and moisture. However, some folks mention that getting the hang of the expansion can take a bit of practice, especially in tight spaces like areas behind outlet boxes. That’s why it's important to follow the instructions closely.

To get the best result, prep the area well and give it enough time to cure as recommended. This helps manage the expansion and keeps everything tidy. Also, it might be a good idea to wear protective gear and cover anything nearby to avoid extra cleanup from overspray.

Despite any little hiccups, the product’s main goal is to provide a fire-blocking seal effectively. If you apply it carefully, it could be a solid choice for adding safety and insulation wherever you need it.

Bottom line, when used correctly, the Red Devil 0915 Foam & Fill Fire Block is designed to resist fire once cured. Just keep the manufacturer's instructions and tips from other users in mind to make it work its best, without any unexpected challenges.