What is the expansion rate of the seal strip?

The seal strip expands 10-60 times its original volume when exposed to fire.

Odorless Fire-Expanding Seal Strip for Custom Door Sealing Solutions

Name: Odorless Fire-Expanding Seal Strip for Custom Door Sealing Solutions
Brand: Hebei Punaier Sealing Materials Co., Ltd
SKU: 1990310381

Hebei, ChinaHebei Punaier Sealing Materials Co., Ltd

US$0.10-0.50

500 Meters

Product specifications

Specification

Sample price:US$0.25/meter.Request sample

Product profile

Customization

Available

Compressive Strength

20 Mpa

Expansion Rate

10X-60X on Fire Exposure

Model NO.

Non-Adhesive Intumescent Fire Seal Strip

Material

Expandable Graphite + Resin + Flame Fillers

Temperature Range

70-250℃

Product Name

Non-Adhesive Intumescent Fire Seal Strip

Keywords

Non-Adhesive Fire Seal Strip

Shape/Profile

Custom Shapes and Profiles Available

Density

1.49g/Cm³

Initial Expansion Temperature

160°C

Odor

Low Odor, No Irritating Smell

Installation Type

Non-Adhesive, Clamping Compatible

Hardness Options

Soft & Hard Grades Customizable

Expansion Grade

High/Low Options Customizable

Typical Uses

Fire Doors, Windows, Cables, Ducts, Pipes

Transport Package

Carton Packaging / Pallet Packaging

Specification

Standard Specifications or Customized

Trademark

ANPUTER

Origin

Hebei, China

HS Code

4016931000

Production Capacity

Over One Million Meters Per Year

Key features

High Expansion Rate: Rapidly expands 10-60 times under fire exposure to seal gaps effectively.

Odorless & Eco-Friendly: Made from pure virgin resin with no irritating smells or harmful additives.

Customizable Options: Supports custom shapes, sizes, hardness grades, and expansion ratios.

Stable Performance: Expanded body remains stable under heat without crumbling or turning to ash.

Versatile Applications: Ideal for fire doors, windows, MEP systems, and electrical cabinets.

Non-Adhesive Design: Features non-adhesive installation compatible with clamping methods.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Hebei Punaier Sealing Materials Co., Ltd

Hebei, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2024-01-01Nearest Port: Tianjin, QingdaoAverage Response Time: ≤2.08hTerms of Payment: T/T, LC, PayPalInternational Commercial Terms(Incoterms): CIF, FOB, EXW

AI-Powered supplier vetting

SummaryThe supplier is explicitly identified as a professional technical supplier with 3D software design and broad customization capabilities. It reports production equipment for cutting, extrusion, granulation, and mixing, plus inventory capacity, but lacks a valid manufacturing-capacity contract with related subcontractors. Quality processes include assurance, raw-material traceability, complaint handling, and corrective/preventive-action procedures. Financial data is represented only by years, without performance values, so credibility cannot be judged. No SDK, overseas agents or branches, overseas warehouse, overseas showroom, or offline trade-show participation is reported. The supplier’s company description mentions plans to increase R&D investment and pursue international certifications, but does not confirm certifications currently held. No customer cases are provided.

Supplier typeThe supplier is explicitly described as a professional technical supplier. Its stated business scope includes surface functional materials, doors and windows, metal products, hardware, graphite and carbon products, chemical products, and bearings, indicating a broad industrial-materials and hardware focus.

After-Sales capabilityThe supplier reports clear procedures and followed records for customer complaints and corrective/preventive actions, and also has written procedures and records for assessing service capability. These are explicit indicators of structured service handling.

R&D capabilityThe supplier provides 3D software design services and supports customization from designs and samples, while its company description mentions increasing R&D investment for upgraded fire-resistant sealing products. However, it explicitly has no available SDK, so innovation capability is positive in product-design support but not fully established across all dimensions.

Production capacityReported equipment includes cutting, extrusion, granulation, and mixing machines, and the supplier states that it has inventory capacity. However, it lacks a valid contract with related subcontractors for manufacturing capacity, which creates a documented capacity-management weakness.

Customization capabilityThe supplier explicitly offers flexible, minor, full, design-based, and sample-based customization, as well as 3D software design services. This demonstrates broad stated customization coverage.

Product Q&A

Q:Are you a factory or a trader?

We are a manufacturer integrating industry and trade. Welcome to visit our company.

Q:Can I add my LOGO to the product?

We support on-demand customization, including LOGO customization, color customization, appearance size customization, etc.

Q:What payment methods do you support?

We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.

Q:What are your modes of transportation?

We usually choose the appropriate mode of transportation (sea, air, land) according to the conditions of the goods, or we can choose the mode of transportation according to your requirements.

Q:How can I get an accurate quotation?

You can first send your specific demand information and product pictures, and we will customize a solution for you according to your needs and inform you of the specific price.