How to buy an original 3M Fire Barrier Sealant CP 25WB+ in India?

Purchase this 3M Fire Barrier Sealant CP 25WB+ from crowcrowcrow.com. It is sourced from authorized US retailers and authorized brand partners, factory-sealed, and imported per-order. All customs duties and GST are included in the listed price, and it ships via ExpressBox tracked delivery within 13-15 days.

Is this fire barrier caulk suitable for sealing gaps around pipes and cables?

Yes, this fire barrier caulk is designed for through-penetration firestop applications, including sealing gaps where pipes, conduits, and cables pass through fire-rated walls and floors. It offers up to a 4-hour fire rating and expands to maintain a seal.

Can I apply this with a standard caulking gun and paint over it?

Yes, this sealant is supplied in standard 10.1 fl oz (286 g) cartridges compatible with a common caulking gun. It is also paintable once cured, allowing for aesthetic integration into your construction project.

What is the fire resistance rating of this sealant?

This 3M Fire Barrier Sealant CP 25WB+ is listed in hundreds of UL Firestop systems and is capable of providing up to a 4-hour fire rating for penetrations in fire-rated assemblies.

Does this sealant expand under heat?

Yes, this is an intumescent sealant. It is capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000°F (538°C), helping to maintain a firestop seal.

What substrates does this sealant adhere to?

This sealant is engineered to exhibit strong adhesion to a full range of construction substrates and penetrants, including common building materials used in fire-rated assemblies.

Is this sealant safe for use in residential applications?

Yes, this 3M Fire Barrier Sealant CP 25WB+ is suitable for commercial, industrial, and residential applications, helping to prevent the spread of fire, smoke, and gases.

3M Red Sealant 286ml | Fire Barrier Sealant CP 25WB+ for Commercial

About this item

3M Fire Barrier Sealant CP 25WB+ offers reliable firestopping for commercial, industrial, and residential projects. This red, intumescent sealant expands significantly when exposed to heat, helping to maintain a seal against fire, smoke, and gases for up to 4 hours in rated assemblies. It adheres strongly to various construction materials and penetrants, ensuring a robust seal.

Designed for ease of use, this water-based, sag-resistant sealant applies smoothly with standard caulking guns. It requires no mixing and is paintable, re-enterable, and repairable, simplifying installation and maintenance. Its halogen-free formulation is suitable for a wide range of applications, including HVAC ducts, pipes, cables, and blank openings.

Imported directly from authorized US retailers and authorized brand partners, this sealant ensures authentic performance. All customs duties and GST are included in the listed price. Delivery is handled via ExpressBox tracked shipping, arriving within 13-15 days.

Key Features

BUILDING CODE COMPLIANCE – seals openings through fire barriers where mechanical services pass through
HELPS PREVENT FIRE SPREAD - capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000°F (538°C)
ONE PRODUCT, MANY USES – listed in hundreds of UL Firestop systems with up to 4-hour ratings
VARIETY OF APPLICATIONS - HVAC ducts and vents, pipes, blank openings, cables, through-penetrations, busways, combos, rated wall, floor and floor-ceiling assemblies and more
EASY AND CLEAN APPLICATION – with no mixing required and sag-resistant properties, it is simple to apply and doesn’t make a mess

Why choose this product

Trusted Firestop Performance

3M Fire Barrier Sealant CP 25WB+ is a trusted product for firestop applications, designed to meet stringent building code compliance. It helps prevent the spread of fire, smoke, and noxious gases by forming a monolithic seal in through-penetrations. This intumescent sealant expands up to three times its volume when exposed to high temperatures, maintaining seal integrity for up to 4 hours in UL-listed systems. Its sag-resistant, water-based formula adheres strongly to various substrates, ensuring reliable performance in commercial, industrial, and residential settings. Imported from authorized US retailers and authorized brand partners, this sealant offers authentic performance for critical safety applications.

Ideal for Indian Construction Projects

This sealant is ideal for sealing gaps around pipes, HVAC ducts, cables, and blank openings in fire-rated walls and floors. Its strong adhesion and sag-resistant properties make it suitable for diverse Indian construction environments. While UL-rated, it's advisable to verify compatibility with local Indian building and fire codes (IS/NBC) for specific projects. The 10.1 fl oz (286 g) cartridges are compatible with standard caulking guns, and the paintable, re-enterable nature simplifies maintenance. For projects requiring robust fire protection, this imported sealant offers a reliable solution.

How to use

Ensure the through-penetration or joint is clean, dry, and free of debris. Remove any loose material that could compromise adhesion. For larger openings, use appropriate backing materials as per the UL system listing. — Prepare the Opening
Load the 10.1 fl oz (286 g) cartridge into a standard caulking gun. Apply the sealant evenly, ensuring it completely fills the gap or cavity around the penetrants. Work from the bottom up for vertical applications. — Apply the Sealant
Tool the sealant immediately after application to ensure good contact with all surfaces. The sealant is sag-resistant but can be smoothed with a damp tool. Allow to cure as per manufacturer guidelines before painting or re-entering the area. — Tool and Finish

Example scenarios

Typical situations where 3M Fire Barrier Sealant CP 25WB+ Red Cartridge 10.1 fl oz (286 g) | Intumescent Firestop Sealant for Through-Penetrations helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

Sealing penetrations in a new commercial building in Delhi requiring fire-rated walls.

How this product helps

Use 3M Fire Barrier Sealant CP 25WB+ to seal around HVAC ducts and cable trays. Its 4-hour fire rating and UL listings provide assurance for building code compliance, ensuring safety against fire spread.

Scenario 2

Illustrative example

Where it helps

Retrofitting an older residential building in Mumbai with updated electrical wiring through fire-rated partitions.

How this product helps

Apply this sealant around new cable penetrations. Its strong adhesion and sag-resistant properties ensure a reliable seal, while its paintable finish allows it to blend seamlessly with existing decor after cure.

Specifications & installation

Specifications

Base Type	Latex-based
Intumescent	Yes
Halogen-Free	Yes
Sound Transmission STC Rating	STC 54 (in STC 54-rated wall assembly)
Expansion Ratio	Minimum 3x volume above 1000°F (538°C)
Allergens	Not specified

Installation & usage

Application	Through-penetration firestop for pipes, HVAC ducts, cables, blank openings in fire-rated assemblies
Application Method	Standard caulking gun
Cure Time	Not specified
Paintable	Yes
Re-enterable/Repairable	Yes
Shelf Life After Opening	Not specified
Cost per cartridge	₹22,729 per cartridge

How we compare

Feature	3M Fire Barrier	Others
Fire Resistance Rating	Up to 4-hour rating (UL listed systems)	Varies by brand; check for IS/NBC code compliance and specific hour ratings
Expansion Under Heat	Intumescent: expands min 3x volume above 1000°F (538°C)	Varies; some may be intumescent, others rely on charring or non-expansion
Application & Finish	Sag-resistant, gun-grade, no mixing, paintable, re-enterable	Varies; some may require mixing, may not be paintable or re-enterable
Substrate Adhesion	Strong adhesion to diverse construction substrates	Varies by brand and specific formulation
Cost per Cartridge	₹22,729 per cartridge	₹250-₹600 per cartridge (approx.)

SKU	cmk0408
GTIN	0051115116384
Brand	3M
Model Number	CP-25WB+
Color	Red
Item Form	Liquid
Material	Silicone
Size	10.1 fl oz (286 g) cartridge
Pack Size	Pack of 12 cartridges
Weight per cartridge	10.1 oz (286 g)
Total Package Weight	5.602 kg
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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Spec
Price

3M Fire Barrier Sealant CP 25WB+ Red Cartridge 10.1 fl oz (286 g) | Intumescent Firestop Sealant for Through-Penetrations

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