FEG-1000E is an acrylic-based intumescent sealant for fireproof sealing of narrow gaps and annular spaces in passive fire protection assemblies. It is typically used in conjunction with intumescent fire collars or other firestop devices to seal the remaining gap between the firestop device and the penetrating pipe or wall substrate. Fast surface cure, flexible when set, and compatible with most construction substrates.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | FEG-1000E |
| HS Code | 3506100090 |
| Base Chemistry | Acrylic (water-based) |
| Tack-Free Time | ≤50 minutes |
| Full Cure Time | ≤3 days |
| Application Method | Caulking gun (standard cartridge) |
| Color | White |
| Substrate Compatibility | Concrete, masonry, steel, gypsum board |
| Flexibility when cured | Yes — remains flexible |
Where FEG-1000E Is Used
Annular space sealing around fire collar installations
When a FEG40 intumescent fire collar is installed around a plastic pipe penetration, the annular space between the collar anchor tabs and the concrete or masonry substrate must be sealed to prevent smoke and gas passage. FEG-1000E is applied to this joint as part of the complete firestop assembly.
Gap sealing in penetration firestop systems
In through-penetration assemblies combining multiple products — fire collars, intumescent strips, and backing materials — FEG-1000E provides the final sealant layer that closes residual gaps and achieves the required smoke tightness.
Narrow gap and joint sealing
FEG-1000E can be used as a standalone firestop sealant for narrow linear joints and gaps in fire-rated construction — compatible with concrete, masonry, steel, and gypsum board substrates.
Application Guidance
① Ensure substrate is clean, dry, and free of dust, oil, and loose material
② Apply FEG-1000E using a standard cartridge caulking gun
③ Tool the sealant bead immediately after application to ensure full substrate contact
④ Allow surface to become tack-free (≤50 minutes) before exposure to traffic or adjacent work
⑤ Full mechanical properties are achieved after ≤3 days cure
Do not apply to wet surfaces or at temperatures below 5°C.
For joints deeper than 20mm, a backing rod should be installed before applying sealant to control fill depth and prevent waste.
Frequently Asked Questions
Q: Is FEG-1000E paintable after curing?
Acrylic-based sealants are generally paintable with water-based emulsion paints after full cure. Please confirm compatibility with your specific paint system before application.
Q: Can FEG-1000E be used as a standalone firestop system?
FEG-1000E is primarily designed as a complementary sealant within a firestop assembly — typically used with fire collars, intumescent strips, or other firestop devices. For standalone applications, please contact us with your joint dimensions and substrate details for application guidance.
Q: How is FEG-1000E supplied?
Standard cartridge format for use with a caulking gun. Please contact us for cartridge size, units per carton, and available quantities.
Q: Does FEG-1000E remain flexible after curing?
Yes. FEG-1000E cures to a flexible state — accommodating minor structural movement without cracking or debonding from the substrate.
Q: Is FEG-1000E compatible with the FEG40 fire collar system?
Yes. FEG-1000E is recommended for sealing the perimeter of FEG40 collar installations as part of a complete through-penetration firestop assembly.
Related Products:
[→ FEG40 Intumescent Fire Collar – primary firestop device]
[→ HGYY-TW712 Intumescent Wrap Strip – for collar assembly]
[→ Graphite Foam – for large opening sealing] [→ View All Passive Fire Protection Products]