Everkem Diversified Products Fire Seal 136 is a residential fireblocking caulk designed for non-fire-rated construction. This 10.1 oz cartridge meets ASTM-E814 and ASTM-E136 non-combustibility standards with ASTM-E84 surface burning characteristics. The low VOC formula contains less than 1 g/L and carries UL classification for code compliance.
The caulk provides excellent adhesion to most materials and remains flexible after curing without shrinking, cracking, or crumbling. It's chemically compatible with pipe fittings and tubing commonly found in residential construction. The easily identifiable color helps inspectors verify proper installation. This EcoSeal product is manufactured in the USA and meets low-emission requirements for indoor air quality.
Fire Seal 136 works well for sealing penetrations in residential wood frame construction where fireblocking is required but full fire ratings are not necessary. Use it around pipes, conduits, and cables passing through walls, floors, and ceiling assemblies in single-family homes and low-rise residential buildings.
Technical Details
Key Specs
| Chemistry | Silicate mortar (residential fireblocking) |
|---|---|
| Application | Non-rated single-family residential (IRC fireblocking) |
| Fire standards | Tested to ASTM E136 (1382°F vertical tube furnace), meets ASTM E814 |
| ASTM E84 | 0 Flame Spread / 0 Smoke Developed |
| Service temperature | -30°F to 2700°F (-34°C to 1482°C) |
| VOC content | < 1 g/L |
| Color | Red |
Full Specifications
Typical Uncured Properties
| Chemistry | Silicate mortar |
|---|---|
| Uncured state | Glossy paste |
| Odor | Low acrylic odor |
| Application temperature | 40°F to 120°F (4.4°C to 48.9°C) |
| Tooling time | 15 minutes |
| Full cure time | 2 to 3 days |
| Shelf life | 1 year |
Typical Cured Properties
| Cured state | Solid mortar |
|---|---|
| ASTM E136 | Tested — Behavior of Materials in a Vertical Tube Furnace at 1382°F (750°C) |
| ASTM E814 | Meets — Standard Test Method for Fire Tests of Penetration Firestop Systems |
| ASTM E84 | 0 Flame Spread / 0 Smoke Developed |
| Service temperature | -30°F to 2700°F (-34.4°C to 1482°C) |
| Paintability | Paintable |
| VOC content | < 1 g/L |
Curing conditions: 75°F (24°C) and 50% relative humidity.
Available colors: Red
Applications
- Single-family residential homes
- Non-rated ceiling and floor openings
- Electrical, plumbing, and other mechanical penetrations
Advantages
- Tested to ASTM E136 and ASTM E814
- 0 Flame Spread / 0 Smoke Developed per ASTM E84
- Silicate-mortar chemistry — will not shrink, crack, or crumble upon cure
- Air-tight barrier against flames, smoke, and toxic gases in concealed spaces
- Chemically compatible with most pipe fittings, PVC, CPVC, ABS, PEX tubing, and other tested penetrating items
- Paintable
- Easily identifiable red color for inspection
Limitations
- Not for use in fire-rated assemblies (use Firestop-814+ for rated applications)
- Not for use in multi-family residential or commercial construction
Compliance & Standards
CSI specified divisions
- 07 86 00 — Smoke Seals
- 07 90 00 — Joint Protection
- 22 00 00 — Plumbing
- 23 00 00 — Heating, Ventilating, and Air Conditioning (HVAC)
- 26 00 00 — Electrical
Applicable standards
- ASTM E136 — Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 1382°F (750°C)
- ASTM E814 — Standard Test Method for Fire Tests of Penetration Firestop Systems
- ASTM E84 — Standard Test Method for Surface Burning Characteristics of Building Materials
EcoSeal (low-VOC) compliance
- V.O.C. Content: < 1 g/L
Sizes & Part Numbers
| Part # | Description | Packaging | Color |
|---|---|---|---|
| FS-136 | Fire Seal-136 — 10.1 fl. oz. (298.7 mL) tube | 12 tubes/case | Red |
| FS-136-28 | Fire Seal-136 — 28 fl. oz. (828.06 mL) tube | 12 tubes/case | Red |
| FS-136-5 | Fire Seal-136 — 5 gallon (19 L) pail | Each | Red |
Equivalent Products from Other Brands
Switching brands? This Everkem product is a functional equivalent to the competitor SKUs listed below per Everkem’s published Product Cross Reference. Formulations, cure times, and exact specs vary by manufacturer — confirm your project’s spec requirements before substituting.
| Brand | Part Number | Product Name |
|---|---|---|
| 3M | FB136 | 3M Fire Block FB 136 |
| Boss | 13650 | Boss Fireblock/Draftstop Sealant |
| Rectorseal | 66408 | Metacaulk RS 136 |
| STI | SB100 | SmokeBlock 136 |
| White Lightning | W44017009 | White Lightning Flame Buster High Heat Latex |