Flame-retardant bag

The fire‑stop bag is encased in a high‑temperature‑resistant fiberglass fire‑proof fabric, with an interior filled with inorganic, fire‑resistant, insulating, and intumescent flame‑retardant materials. It is shaped like a pillow‑like fabric pouch. It is primarily used for fire‑stopping cable and pipeline penetrations through walls and floor slabs, as well as cable trench openings. When exposed to fire, the internal materials expand and cure, forming a honeycomb‑structured, sealed fire‑barrier that prevents the spread of flames and smoke. It is a commonly employed flexible fire‑stopping material.

Category:

Fireproof material

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sales@cnabrasiveproducts.com

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+86 15100717666

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Product Description
Product Advantages
Process flow
Technical Parameters

Product Overview

The fire‑stop bag is encased in a high‑temperature‑resistant fiberglass fire‑proof fabric, with an interior filled with inorganic, fire‑resistant, insulating, and intumescent flame‑retardant materials. Its shape resembles a fabric‑wrapped pillow. It is primarily used for fire‑stopping cable and pipeline penetrations through walls and floor slabs, as well as cable trench openings. When exposed to fire, the internal materials expand and cure, forming a honeycomb‑like, sealed fire‑barrier that prevents the spread of flames and smoke. It is a commonly employed flexible fire‑stopping material.

Core Technical Parameters

Fire-resistance rating: When the sealing thickness is 240 mm, ≥180 min (3 hours EI)

Water- and oil-resistant: After being immersed for 3 days, the package remains intact, and the filler shows no signs of disintegration.

Flame retardancy: Non‑combustible, low‑smoke, halogen‑free; smoke toxicity rating AQ1.

Operating ambient temperature: ‑30℃ to 120℃

Features: Asbestos-free; non-corrosive to cables and metal pipes; provides a certain level of rodent and insect resistance.

Main application areas

Power Industry: Sealing of openings in substations, cable trenches, cable shafts, and cable trays.

Cable penetration holes in communication equipment rooms and base station walls and floor slabs

Sealing of cable, oil pipe, and gas pipe penetrations through walls and floor slabs in chemical and industrial/mining enterprises.

Fire protection for buildings, underground utility tunnels, and tunnels; suitable for areas where cables may need to be added or removed at a later stage.

Product Advantages

Simple construction : Direct stacking and placement, no complex tools required; large‑diameter openings enable rapid construction.

Flexible adaptation Irregular openings can be flexibly filled, are removable and easy to access, facilitating future cable additions or modifications.

Great value for money : Low procurement costs, suitable for large-scale engineering projects.

Fire-expanding seal : Expands and forms a solid mass in the event of a fire, sealing gaps and preventing the spread of flames and smoke.

Fully equipped, source factory

FAQ

Can I take a sample for testing?

Yes, samples can be sent for testing before placing a bulk order.

Do you have a pre-shipment inspection procedure?

Yes, we always test the product before delivery.

Can I have my own custom-made product?

Yes. We can provide OEM and ODM services, including design, logos, packaging, and more.

What’s the difference between CBN grinding wheels and diamond grinding wheels?

CBN (cubic boron nitride) is suitable for grinding high-hardness alloy steels;
Diamond grinding wheels are suitable for grinding brittle materials such as cemented carbides and ceramics.

Product Inquiry

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