Self Adhesive Intumescent Fireproof Sealing Strip Expansion Ratio Door Windows Weatherstrip

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Product Description

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Basic Specifications

Model NO.
Can be customized
Effect
Fire-Proof Seal
Cross-Section
I- Type
Color
Red, Brown, White, Black, etc
Width
10-50mm
Thickness
1-4mm
Initial Temp
180℃
Transport Package
Carton
Origin
China
HS Code
4016931000
Capacity
200,000 Meters/Month

Product Description

Self Adhesive Intumescent Fireproof Sealing Strip

The intumescent Seal expands in a fire to seal door frames and glazing applications to help prevent the passage of fire, smoke and toxic gases.

Fireproof Sealing Strip
Weatherstrip Detail
MaterialExpandible graphite and PVC
SizeWidth: 10-50mm; Thickness: 1-5mm
Color OptionsRed, brown, white, black
Initial Expansion Temp199ºC
Main Expansion Temp347ºC
Linear Expansion Ratio≥3 times
Key FunctionRapid expansion during fire to close door/window cracks; prevents smoke and heat channeling; sound insulation.
ApplicationFire-proof doors, security doors, heating furnaces, heat sinks, building pipe wells, etc.

Key Advantages

Intumescent material expands when heated
Smoke seal retards toxic by-products
Documented aging properties
Excellent flexibility for easy installation
Low flame spread and smoke development
Easy to cut to required lengths
Re-enterable (no special tools required)
Low odor formulation
Expansion Display
Installation Case

Application Scenarios

Used in fire door assemblies of timber, steel or composite construction. The intumescent expands rapidly to many times (6 - 30 times) its original size upon contact with fire. It concentrates high pressure in confined spaces, exfoliates slowly to protect itself once activated and provides excellent insulation. When correctly positioned, the seals prevent the passage of flames, hot smoke, and fumes.

Application 1
Packing Info

Delivery & Service

Logistics: Express (DHL, Fedex, UPS, TNT), Air, or Sea freight.
Time: 7-15 workdays depending on quantity.
Packing: 25/30/50 meters per roll, 10 Rolls per Carton.
Support: OEM available (Custom logo on package).
Samples: Free samples provided for testing.
Service: Pre-sale, sale, and after-sale "intimate service".
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Frequently Asked Questions

1. What is the expansion ratio of the fireproof sealing strip?
The linear expansion ratio is ≥3 times, but it can reach 6 to 30 times its original size upon direct contact with fire depending on the environment.
2. At what temperature does the strip start to react?
The initial expansion temperature begins around 180°C to 199°C, with the main expansion occurring at approximately 347°C.
3. Can the color and size be customized for specific projects?
Yes. Standard colors include Red, Brown, White, and Black. Widths from 10-50mm and thicknesses from 1-5mm can be customized.
4. Is the installation difficult?
Not at all. The strip features a self-adhesive backing and excellent flexibility, allowing it to be cut to length and installed without special tools.
5. What materials are used in the production?
The strip is primarily composed of high-quality expandable graphite combined with PVC for durability and flexibility.
6. How is the product typically packaged for shipping?
It is usually packed in rolls of 25, 30, or 50 meters, with 10 rolls per carton. Custom packing is available upon request.

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