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🔥 Seal the gap, save your space — fireproof like a pro!
The Hilti FS-ONE MAX 10.1oz is a premium intumescent firestop sealant designed for versatile use on concrete, masonry, drywall, and metal penetrations. It expands when exposed to heat to block fire and smoke, meets LEED low VOC standards, and performs reliably across a broad temperature range. Highly rated and trusted in industrial fire protection, it’s the go-to solution for professionals demanding safety and compliance.
| ASIN | B08Y98KN77 |
| Best Sellers Rank | #65,872 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Fire Barrier Caulk |
| Brand | HILTI |
| Brand Name | HILTI |
| Color | Red |
| Customer Reviews | 4.7 out of 5 stars 21 Reviews |
| Included Components | No |
| Item Form | Foam |
| Item Weight | 10.1 Ounces |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | Hilti |
| Material Type | Concrete, Masonry, Drywall |
| Number of Items | 1 |
| Part Number | 2101531 |
| Surface Recommendation | Hard Floor |
| Water Resistance Level | Water Resistant |
P**C
Expensive Caulk but needed per specifications
Price was too high for the product, but required for spec's
M**H
Works
I used this to install 1/8th inch screening over my 1/4 inch crawlspace vents. This is recommended to keep embers from wildfire from getting into your crawlspace and setting your house on fire.
K**R
Hard to Apply
This stuff is really thick and not easy to spread. We went through a ton of gloves finishing our project. We needed it for our firewall to pass inspection and it did do the job.
Trustpilot
2 months ago
1 week ago