HOLDRITE HF100-5B Hydroflame Firestop Sealant Gallon

( Brand: Holdrite ), ( Manufacturer Part Number: HF100-5B )

Review HOLDRITE Hydroflame 100 Firestop Sealant Red Gallon New

The **HoldRite HF100-5B HydroFlame Firestop Sealant** is a high-performance, intumescent-based fire protection product designed to provide critical fire resistance in commercial, industrial, and institutional buildings where fire safety is paramount. Engineered specifically for use in penetrations, joints, and voids where fire-rated assemblies are compromised by electrical conduits, piping, mechanical ducts, or other penetrations, this sealant delivers superior fire integrity while maintaining structural integrity under extreme thermal conditions. Formulated with advanced intumescent technology, the HF100-5B expands dramatically when exposed to high temperatures, creating a dense, insulating barrier that effectively seals gaps and prevents the spread of fire and smoke for extended periods. This expansion capability is crucial in high-stakes environments where even a brief delay in fire containment can have catastrophic consequences.

Beyond its exceptional fire resistance, the HoldRite HF100-5B is a versatile, one-component, moisture-cured sealant that offers ease of application and reliability in demanding conditions. Its flexible, yet durable formulation ensures long-term adhesion to a wide range of substrates, including concrete, steel, masonry, and gypsum, making it ideal for both new construction and retrofit applications. The sealant s high-temperature resistance capable of withstanding exposure up to 2,000 F (1,093 C) ensures that it remains effective even in the most severe fire scenarios, providing peace of mind for architects, engineers, and building officials who prioritize life safety. Additionally, the HF100-5B is non-combustible, low-odor, and free of harmful solvents, making it a safer choice for indoor applications where air quality and worker safety are concerns.

For professionals seeking a fire-rated solution that balances performance, durability, and ease of use, the HoldRite HF100-5B stands out as a premium option. Its gallon-sized container is perfect for medium to large-scale projects, offering ample coverage for critical fire protection applications without excessive waste. Whether used in high-rise buildings, hospitals, schools, or industrial facilities, this sealant provides a reliable, code-compliant barrier that helps meet stringent fire safety regulations while contributing to the overall resilience of the structure. With its proven track record and commitment to quality, the HoldRite HF100-5B is an indispensable tool for anyone tasked with ensuring fire safety in modern construction.

**Pros and Cons of buying a HoldRite HF100-5B HydroFlame Firestop Sealant (Gallon)**

The HoldRite HF100-5B HydroFlame Firestop Sealant is a high-performance, intumescent sealant designed for fire protection in penetrations, joints, and gaps in fire-rated assemblies. Below is a detailed breakdown of its advantages and limitations.

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### **Pros**

1. **High Fire Resistance**

The HF100-5B is an intumescent sealant, meaning it expands significantly when exposed to heat, forming a charred, insulating barrier that helps contain fires for extended periods. This is critical in commercial, industrial, and residential fire protection applications, particularly around penetrations (e.g., pipes, cables, ducts) where fire can spread rapidly.

2. **Versatile Application**

It is suitable for a wide range of substrates, including concrete, steel, masonry, and drywall, making it adaptable to various construction materials. It can also be used in both horizontal and vertical applications, including penetrations through walls, floors, and ceilings.

3. **Weather and Environmental Resistance**

The sealant is designed to withstand outdoor conditions, including exposure to moisture, UV light, and temperature fluctuations. This makes it ideal for both interior and exterior fire protection applications, such as around HVAC systems, electrical conduits, or plumbing in exposed areas.

4. **Easy Application**

The HF100-5B comes in a gallon container and can be applied with a caulking gun, trowel, or spray equipment, depending on the project s scale. Its consistency allows for smooth, even application, reducing the risk of gaps or uneven surfaces that could compromise fire resistance.

5. **Long-Term Durability**

Once cured, the sealant maintains its structural integrity and fire-resistant properties over time, provided it is not physically damaged or exposed to extreme conditions. This reduces the need for frequent reapplication or maintenance in most cases.

6. **Compliance with Fire Codes**

The product is likely tested and certified to meet or exceed fire safety standards such as ASTM E814 (for fire testing of penetrations), UL 2079 (for fire-resistant penetrations), and other regional codes. This compliance is essential for projects requiring third-party validation, such as commercial buildings or high-risk facilities.

7. **Low Odor and Non-Staining**

Compared to some other sealants, the HF100-5B has minimal odor during application and does not typically stain surfaces, which is beneficial for clean, professional finishes in both new construction and retrofits.

8. **Cost-Effective for Large Projects**

Purchasing in a gallon size offers better value for large-scale applications, such as commercial buildings or industrial facilities, where significant quantities of sealant are required. It reduces the cost per unit compared to smaller containers.

9. **Compatibility with Other Fire Protection Materials**

The sealant can be used in conjunction with other fireproofing materials, such as fireproofing coatings or insulation, to enhance overall fire protection in critical areas.

10. **Minimal Shrinkage**

Intumescent sealants like the HF100-5B typically exhibit minimal shrinkage after curing, which helps maintain a consistent seal and reduces the risk of fire penetration through gaps.

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### **Cons**

1. **Limited to Specific Applications**

While versatile, the HF100-5B is not suitable for all types of fire protection needs. For example, it may not be appropriate for high-temperature environments where non-intumescent sealants or fireproofing sprays are required. Always verify compatibility with the specific application and local fire codes.

2. **Application Skill Required**

Proper application is critical to ensure the sealant performs as intended. Improper mixing, over- or under-application, or failure to follow manufacturer guidelines can compromise fire resistance. This may require trained personnel or additional training for construction teams.

3. **Curing Time**

Like many intumescent sealants, the HF100-5B requires time to cure fully before it achieves its maximum fire-resistant properties. This can delay project timelines, especially in fast-paced construction environments.

4. **Potential for Surface Imperfections**

If not applied carefully, the sealant may leave visible lines, bubbles, or uneven surfaces, which could affect the aesthetic quality of the finished work. This is particularly noticeable in high-visibility areas like commercial interiors.

5. **Cost Compared to Non-Intumescent Sealants**

Intumescent sealants are generally more expensive than non-fire-rated sealants. For projects where fire resistance is not a requirement, cheaper alternatives may be more cost-effective. However, the HF100-5B s value lies in its specialized function rather than general-purpose sealing.

6. **Environmental and Health Considerations**

While the HF100-5B is designed to be low-odor, some intumescent sealants contain chemicals that may require proper ventilation during application. Workers should follow safety data sheets (SDS) and use appropriate personal protective equipment (PPE) to avoid inhalation or skin contact.

7. **Storage and Shelf Life**

Like most sealants, the HF100-5B has a limited shelf life once opened. Unused portions may need to be discarded after a certain period, leading to waste if not fully utilized. Proper storage in a cool, dry place is essential to maintain product integrity.

8. **Testing and Certification Requirements**

For projects requiring third-party fire testing (e.g., UL listings), additional costs may be incurred for certification, which can add to the overall expense of using the product. This is particularly relevant in commercial or high-risk applications.

9. **Potential for Compatibility Issues with Certain Materials**

While the sealant is designed to adhere to a variety of surfaces, some substrates (e.g., certain plastics or treated woods) may not bond as effectively. Pre-treatment or testing may be necessary to ensure proper adhesion and fire resistance.

10. **Limited Flexibility After Curing**

Once cured, intumescent sealants like the HF100-5B are rigid and may not accommodate significant structural movement or vibration. In areas prone to seismic activity or thermal expansion, additional measures (e.g., flexible fireproofing materials) may be needed.

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### **Conclusion**

The HoldRite HF100-5B HydroFlame Firestop Sealant is a high-quality, intumescent sealant that excels in fire protection applications, particularly in commercial, industrial, and high-risk residential settings. Its ability to expand upon exposure to heat, versatility across substrates, and compliance with fire safety standards make it a reliable choice for critical fire-rated penetrations. The product s ease of application, durability, and resistance to environmental factors further enhance its appeal for large-scale projects.

However, the HF100-5B is not without limitations. Its specialized nature means it is not suitable for all sealing tasks, and improper application can undermine its effectiveness. Additionally, the cost and potential for surface imperfections may be drawbacks in certain contexts. For projects where fire resistance is a priority and the sealant can be applied correctly, the HF100-5B offers excellent performance and peace of mind.

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### **Recommendation**

- You are working on a project that requires fire-rated penetrations (e.g., commercial buildings, hospitals, schools, or industrial facilities).

- The application involves penetrations through walls, floors, or ceilings where fire spread must be controlled.

- You need a sealant that performs well in both indoor and outdoor environments, including exposure to moisture and temperature variations.

- Your project requires compliance with fire safety codes such as ASTM E814 or UL 2079, and the sealant s certifications align with these standards.

- You are prepared to invest in a high-performance product that prioritizes safety over cost savings in critical areas.

- Fire resistance is not a requirement, and a cheaper, non-intumescent sealant would suffice.

- The project involves high-temperature environments where non-intumescent or ceramic-based sealants may be more appropriate.

- Your team lacks experience with intumescent sealants, and proper application techniques cannot be guaranteed.

- The budget is extremely constrained, and the cost of the HF100-5B would significantly impact project profitability without a clear need for its fire-resistant properties.

For most fire protection applications where intumescent performance is essential, the HoldRite HF100-5B is a strong, reliable choice. Its benefits in terms of safety, durability, and compliance outweigh its drawbacks for projects where fire resistance is non-negotiable. Always verify the product s compatibility with your specific application and consult with a fire protection specialist if unsure.

Details:

The HoldRite HydroFlame 100 Firestop Sealant in Red is a 5 gallon container of firestop sealant designed for commercial and industrial use. G21 testing for obstruction of mold growth. The sealant is designed to offer superior performance and durability, making it an essential component for ensuring fire safety in commercial industrial settings.: Flexible printable. Meets LEED Criteria.

High STC rating 65. FBC system compatible. 3 year shelf life. Clean Air Gold certified.

part #: hf1005b prices

• $29.99-$249.99

specifications sealantadhesivee:

• brand: Holdrite
• mpn: Hf100-5b

shipping sealantadhesivee:

• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy, UPS Ground
• type: Calculated
• cost: $140.43
• class: Standard, Economy
• carrier: USPS, UPS, FedEx
• transit: 6-9 Days

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• sold: 0
• started: March 24, 2026
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• Adhesives, Sealants Tapes > Caulks, Sealants Removers > Caulks Sealants

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• rating: 100.0%
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• city: Cayce, South Carolina

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