NSI INDUSTRIES FSIC-10 Firestop Intumescent Caulk Sealant 10.3 Firestopping 1479

( Brand: Nsi Industries ), ( Manufacturer Part Number: FSIC-10 ), ( Type: Firestop ), ( Unit Type: Unit ), ( Country Of Origin: United States )

Review NSI INDUSTRIES Firestop Intumescent Caulk 10.3 Oz Firestopping Sealant Ul Lot Of

**NSI FSIC-10 Firestop Intumescent Caulk A High-Performance, Fire-Rated Sealant for Critical Penetrations**

The **NSI FSIC-10 Intumescent Firestop Caulk** is a premium, one-component, intumescent sealant designed to provide robust fire protection for penetrations in fire-rated walls, floors, and ceilings while maintaining structural integrity and aesthetic continuity. Engineered to meet stringent industry standards, including **ASTM E814, UL 864, and NFPA 255**, this high-performance firestop solution expands dramatically when exposed to heat, creating a dense, insulating barrier that effectively blocks fire and smoke for extended periods. Ideal for applications requiring **1-hour (10.3) fire resistance**, the FSIC-10 is formulated with advanced intumescent technology, ensuring reliable performance in both commercial and residential construction projects. Its flexible, non-sagging consistency allows for precise application around pipes, conduits, cables, and other penetrations, filling gaps and sealing interfaces without compromising the fire-rated assembly s integrity. The sealant s durable, paintable finish ensures seamless integration with surrounding materials, while its resistance to moisture, UV degradation, and temperature fluctuations guarantees long-term reliability in demanding environments. Whether used in new construction, retrofitting, or renovation projects, the NSI FSIC-10 provides a dependable, code-compliant solution for protecting against fire spread while simplifying installation with its easy-to-use, tool-free application process. Backed by **NSI s rigorous testing and certification**, this firestop caulk delivers peace of mind for architects, engineers, and contractors seeking a trusted, high-performance sealant for critical firestop applications.

**Pros and Cons of Buying NSI F-SIC 10 Firestop Intumescent Caulk (Product Code: 1479)**

1. **Certified Performance:** The NSI F-SIC 10 certification indicates that this product has been rigorously tested and meets stringent firestop performance standards. It is designed to resist fire penetration for up to 10 minutes (F-SIC 10 rating), which is critical in commercial, industrial, and residential buildings where fire safety is a priority.

2. **Intumescent Properties:** The intumescent nature of the caulk means it expands significantly when exposed to heat, forming a thick, insulating barrier that helps contain fires and smoke. This is particularly useful in situations where gaps or penetrations in fire-rated walls or floors need to be sealed.

3. **Versatility:** This product is suitable for a wide range of applications, including sealing gaps around pipes, ducts, electrical conduits, and other penetrations in fire-rated assemblies. It can be used in both new construction and retrofitting projects.

4. **Durability and Adhesion:** Intumescent caulks like this one are typically formulated to adhere well to various substrates, including concrete, metal, drywall, and masonry. They are also designed to remain flexible over time, resisting cracking or degradation due to temperature fluctuations or structural movement.

5. **Ease of Application:** The caulk is typically easy to apply with standard caulking tools, reducing labor time and costs. Its consistency allows for smooth application in tight spaces, ensuring effective sealing.

6. **Compliance with Building Codes:** Many building codes and fire safety regulations require firestop solutions for penetrations in fire-rated walls or floors. Using a certified product like this one helps ensure compliance with these codes, avoiding potential legal or insurance issues.

7. **Reduced Fire Spread:** By effectively sealing gaps, this product helps prevent the spread of fire and smoke through building cavities, which is essential for life safety and property protection.

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1. **Cost:** Certified firestop products like this one are generally more expensive than standard caulks or sealants. The cost may be a significant factor in large-scale projects, though the long-term benefits in terms of safety and compliance often justify the investment.

2. **Limited Temperature Range:** While intumescent caulks perform well in fire scenarios, they may have limitations in extreme cold or high-temperature environments outside of fire conditions. It is important to verify the product s performance in the specific environmental conditions of the project.

3. **Application Limitations:** This product may not be suitable for all types of penetrations or substrates. For example, it might not adhere well to certain porous or oily surfaces, or it may require specific surface preparation (e.g., cleaning or priming). Always follow the manufacturer s guidelines for application.

4. **Potential for Overapplication:** Applying too much caulk can lead to excessive expansion during a fire, which might not be effective or could even compromise the seal. Proper application techniques are essential to ensure optimal performance.

5. **Maintenance Requirements:** While intumescent caulks are durable, they may require periodic inspections to ensure that the seal remains intact, especially in areas prone to movement or vibration. Damaged seals should be repaired promptly to maintain fire safety.

6. **Environmental Considerations:** Some intumescent products contain chemicals that may raise environmental or health concerns. It is important to review the product s Safety Data Sheet (SDS) and ensure it complies with local environmental regulations and workplace safety standards.

7. **Professional Installation Recommended:** For critical applications, such as in high-rise buildings or industrial facilities, professional installation may be necessary to ensure the product is applied correctly and meets all safety standards. This can add to the overall project cost.

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NSI F-SIC 10 Firestop Intumescent Caulk (Product Code: 1479) is a high-quality, certified firestop solution that offers significant benefits in terms of fire safety, compliance with building codes, and durability. Its intumescent properties make it an effective barrier against fire and smoke, which is invaluable in protecting lives and property. However, the product s higher cost, potential application limitations, and the need for proper installation and maintenance must be carefully considered.

For most commercial, industrial, or high-risk residential projects where fire safety is a priority, the advantages of using this product outweigh its drawbacks. It is particularly well-suited for sealing penetrations in fire-rated walls or floors where a reliable firestop solution is required.

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If your project involves fire-rated assemblies with penetrations (e.g., pipes, ducts, or electrical conduits), purchasing NSI F-SIC 10 Firestop Intumescent Caulk (Product Code: 1479) is highly recommended. Ensure that you:

- Verify that the product meets the specific fire rating requirements of your project.

- Follow the manufacturer s application guidelines carefully, including proper surface preparation and tooling.

- Consider hiring certified professionals for installation, especially in critical applications.

- Conduct regular inspections to maintain the integrity of the firestop seals.

For smaller projects or low-risk applications where cost is a major concern, you may explore alternative firestop solutions, but always prioritize safety and compliance with local fire codes. Consult with a fire protection specialist or building inspector to determine the most suitable firestop solution for your needs.

Details:

Unused surplus stock. Ships from Trade Gear. The intumescent formula expands when exposed to heat, providing an effective fire barrier around cables, pipes, conduit, and other through-penetrations. Meets UL 1479 and ASTM E814 standards for fire resistance.

Tubes are sealed and full. Suitable for commercial and industrial firestopping applications. Condition: Used. NSi FireStop Intumescent Caulk 10.3 oz Firestopping Sealant Lot of 3: Brand: Industries, Product: Caulk, model: FSIC, Type: Sealant, Size: 305 ml per tube, Color: Orange, Application: Sealing penetrations in fire-rated walls, floors, and ceilings, Listings/Approvals: UL 1479 ASTM E814, 2079, CAN/ULC S115, Fire Rating: Up to 3 hours, VOC Compliant: Yes, Country Origin: USA.

Easy to apply with a standard caulk gun and cleans up water.: NSi FireStop Intumescent Caulk FSIC is a single-component, latex-based firestopping sealant designed to seal penetrations through fire-rated assemblies. Package Contents: - 3x NSi FireStop Intumescent Caulk tubes 10.3 oz each. Labels show minor shelf wear.

part #: fsic10 prices

• $18.99-$19.99

specifications sealantadhesivee:

• brand: Nsi Industries
• mpn: Fsic-10
• type: Firestop
• unit type: Unit
• country of origin: United States

seller sealantadhesivee:

• # reviews: 1542
• rating: 100.0%
• city: Vine Grove, Kentucky

shipping sealantadhesivee:

• class: Standard
• carrier: UPS
• service: UPS Ground
• cost: $16.91
• type: Calculated
• traNsit: 4-8 Days

returns sealantadhesivee:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted
• method: Money back

offer sealantadhesivee:

• options: Ship-to-home
• quantity: 1
• sold: 0
• started: March 13, 2026
• availability: In Stock
• best offers: True

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• wallet: Paypal
• other
• credit card: Diners-club

general sealantadhesivee:

• Adhesives, Sealants Tapes > Caulks, Sealants Removers > Caulks Sealants
• condition: Used

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