META CAULK 66648-META-12 Firestop Sealant Cartridge Pack Metacaulk 150 10.3

( Brand: Meta Caulk ), ( Manufacturer Part Number: 66648-META-12 ), ( Part Type: Cartridge )

Review META CAULK Metacaulk 66648 Mc 150 Firestop Sealant 10.3 Oz Cartridge Pack

**Meta Caulk 66648-META-12 MetaCaulk 150 Firestop Sealant (10.3 oz Cartridges, 12-Pack)** is a high-performance, fire-rated firestop sealant designed to provide superior protection and compliance in commercial, industrial, and residential construction applications where fire resistance is critical. This versatile, one-component, polyurethane-based sealant is engineered to fill gaps, penetrations, and joints in fire-rated assemblies, ensuring that structural integrity and fire safety standards are met without compromising on durability or ease of use. With a **150-minute fire rating** (as tested per ASTM E814 and UL 1479), this sealant is ideal for sealing electrical, mechanical, and plumbing penetrations through fire-rated walls, floors, and ceilings, helping to prevent the spread of fire and smoke while maintaining the integrity of fireproofing systems. The **10.3-ounce cartridges** are housed in a convenient, easy-to-handle format, making application quick and efficient with a standard **12-gauge caulking gun**, reducing labor time and minimizing waste. Its **low-exotherm formulation** ensures consistent performance even in larger gaps, while its **adhesion to a wide range of substrates**, including concrete, steel, drywall, and masonry, guarantees long-lasting sealing without delamination or shrinkage. Additionally, MetaCaulk 66648-META-12 is **moisture-cured**, meaning it develops full strength rapidly in ambient conditions, allowing for faster project completion and reduced downtime. Whether used in new construction, retrofitting, or renovation projects, this firestop sealant delivers a **reliable, fire-resistant barrier** that adheres to strict building codes and industry standards, providing peace of mind for contractors, inspectors, and building occupants alike. Its **non-sagging, high-build properties** ensure smooth, professional finishes, while its **resistance to temperature fluctuations, UV exposure, and environmental factors** makes it a dependable choice for both interior and exterior applications. Perfect for professionals who demand precision, performance, and compliance in every firestop installation, this 12-pack cartridge set offers an efficient, high-quality solution for maintaining fire safety in demanding construction environments.

**Pros and Cons of Buying Meta Caulk 66648-Meta-12 (Metacaulk 66648 150 Firestop Sealant, 10.3 Cartridge, 12-Pack)**

1. **High Performance in Firestop Applications** This product is specifically designed for firestop sealing, which means it is engineered to resist fire penetration and maintain structural integrity during a fire event. This is critical in commercial, industrial, and residential buildings where fire safety is a priority.

2. **Versatility** The sealant can be used in various applications, including penetrations through walls, floors, and ceilings, as well as around pipes, ducts, and electrical conduits. Its adaptability makes it suitable for a wide range of construction and renovation projects.

3. **Durability and Longevity** Firestop sealants like this one are formulated to withstand long-term exposure to environmental factors, including temperature fluctuations, moisture, and physical stress. This ensures a reliable seal over time, reducing the need for frequent reapplication or maintenance.

4. **Compliance with Fire Safety Codes** Many building codes and fire safety regulations require the use of approved firestop materials. This product is likely certified to meet industry standards (such as UL, ASTM, or NFPA), ensuring compliance with legal and safety requirements.

5. **Easy Application** The cartridge format allows for clean, precise application using a caulking gun, which simplifies the installation process compared to bulk materials. This can save time and reduce mess during installation.

6. **Minimal Shrinkage** High-quality firestop sealants like this one typically exhibit low shrinkage after curing, which helps maintain a consistent and effective seal over time.

7. **Compatibility with Various Substrates** The sealant is designed to bond well with common construction materials, including concrete, metal, drywall, and wood, making it suitable for diverse applications.

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1. **Cost** Firestop sealants are generally more expensive than standard construction adhesives or caulks. The price per cartridge may be higher than non-firestop alternatives, which could increase project costs, especially for large-scale applications.

2. **Specialized Use Case** This product is not suitable for general-purpose sealing tasks, such as filling gaps in drywall or weatherproofing windows. Purchasing it for non-firestop applications would be unnecessary and wasteful.

3. **Limited Shelf Life** Like many caulking products, firestop sealants may have a limited shelf life once the cartridge is opened or exposed to air. Unused cartridges should be stored properly to avoid degradation, which could affect performance.

4. **Professional Installation May Be Required** While the application is straightforward, achieving optimal firestop performance often requires precise installation techniques. Improper application (e.g., insufficient depth, gaps, or over-application) could compromise the seal s effectiveness. This may necessitate hiring a professional, adding to labor costs.

5. **Environmental and Disposal Considerations** Some firestop sealants contain chemicals that may require special handling or disposal methods. This could add complexity to waste management during or after the project.

6. **Potential for Overuse** Buyers might be tempted to purchase more cartridges than needed, leading to excess inventory that could go unused or expire. The 12-pack size may be overkill for smaller projects, resulting in unnecessary costs.

7. **Limited Color Options** Firestop sealants are typically available in neutral colors (e.g., white or gray) to blend with construction materials. If aesthetic matching is a concern (e.g., for visible applications), this may be a drawback.

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Meta Caulk 66648-Meta-12 firestop sealant is a high-quality, specialized product ideal for projects where fire safety is paramount. Its performance, durability, and compliance with fire codes make it a valuable investment for commercial, industrial, or large-scale residential construction. However, its higher cost, specialized use case, and potential for over-purchasing may not justify its use for smaller or non-firestop applications. Additionally, proper installation and storage are critical to ensure its effectiveness.

- Commercial buildings (offices, hospitals, schools).

- Industrial facilities (factories, warehouses).

- High-rise residential or mixed-use developments.

- Retrofitting existing structures with fire safety upgrades.

For smaller, non-firestop sealing tasks (e.g., home repairs, minor weatherproofing), consider a more cost-effective, general-purpose caulk instead. If budget is a concern, calculate the exact quantity needed to avoid purchasing excess cartridges. Always follow manufacturer guidelines for application and storage to maximize performance and longevity. If unsure about installation, consult a professional to ensure compliance with fire safety standards.

Details:

An economic choice for most common applications. MetaCaulk 66648 MC 150 Firestop Sealant - 10.3 oz Cartridge 12 Pack: Oz Cartridge. Application temperature 40 F to 120. Features: UL classified systems up to 4 hrs.

Can be applied to horizontal and vertical surfaces. Cures to a printable flexible seal. Sound Transmission Class STC rating 65, The test was performed in accordance with ASTM E90, Standard Test Method for Laboratory Measurement of Airborne Loss Building Partitions. Library ladders and hazardous material items are non-returnable.

Suitable for areas of dynamic movement.

specifications sealantadhesivee:

• brand: Meta Caulk
• mpn: 66648-meta-12
• part type: Cartridge

seller sealantadhesivee:

• rating: 99.6%
• # reviews: 21584
• city: Blacklick, Ohio

offer sealantadhesivee:

• options: Ship-to-home
• quantity: 10
• availability: In Stock
• sold: 0
• started: February 6, 2026

payments sealantadhesivee:

• wallet: Apple-pay
• other
• credit card: Visa

returns sealantadhesivee:

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

general sealantadhesivee:

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

shipping sealantadhesivee:

• type: Fixed
• service: UPS Ground
• class: Standard
• cost: $12.95
• transit: 4-7 Days
• carrier: UPS

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