INDUSTRY COMPONENT

Flame Retardant

Flame retardant additive for electrical epoxy resins that inhibits combustion and reduces fire spread in electrical applications.

Component Specifications

Definition
A specialized chemical additive incorporated into electrical-grade epoxy resin compounds to suppress ignition, slow flame propagation, and reduce smoke generation during fire events. It functions by interrupting the combustion cycle through chemical or physical mechanisms when exposed to heat or flame, enhancing the fire safety of electrical components and systems.
Working Principle
Works through mechanisms such as endothermic decomposition (absorbing heat), formation of protective char layers, release of flame-quenching gases (like water vapor or inert gases), or radical scavenging in the gas phase to disrupt the combustion chain reaction. In epoxy resins, it typically integrates into the polymer matrix to provide persistent protection.
Materials
Common materials include halogenated compounds (e.g., brominated or chlorinated organics), phosphorus-based compounds (e.g., phosphates, phosphonates), inorganic fillers (e.g., aluminum trihydrate, magnesium hydroxide), nitrogen-based compounds (e.g., melamine derivatives), or synergistic blends. Selection depends on required flame retardancy level, electrical properties, and environmental regulations.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Density1.2-2.0 g/cm³
Particle Size1-50 μm
Halogen Content<900 ppm (for halogen-free types)
Flame Retardancy RatingUL94 V-0, V-1, or V-2
Limiting Oxygen Index (LOI)>28%
Thermal Decomposition Temperature250-400°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 4589-2, IEC 60695-11-10, UL 94, ASTM D635

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Toxic fume emission during combustion (for some types)
  • Reduced mechanical strength if over-loaded
  • Compatibility issues with resin matrix
  • Environmental and regulatory restrictions (e.g., RoHS, REACH)
FMEA Triads
Trigger: Inadequate dispersion in epoxy matrix
Failure: Uneven flame retardancy, localized combustion
Mitigation: Optimize mixing processes, use compatibilizers, conduct uniformity testing
Trigger: Thermal degradation below operating temperature
Failure: Loss of flame retardant efficacy, premature failure
Mitigation: Select materials with higher decomposition temperatures, verify thermal stability via TGA analysis

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±5% loading by weight in resin compound
Test Method
Flammability tested per UL 94 vertical burning test; halogen content verified via ion chromatography for compliance with RoHS/REACH

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Flame Retardant

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Tiantie Industrial
Jiangsu, CN
Founded 2003
Listed on the company's own website · profile compiled by CNFX from public sources
Hebei Shida Seal Group Co., Ltd.
Hebei, CN
Founded 1983
IATF 16949:2016
Listed on the company's own website · profile compiled by CNFX from public sources
TOPWELL
Hangzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the difference between halogenated and halogen-free flame retardants?

Halogenated flame retardants (e.g., brominated types) are highly effective but may release toxic gases when burned. Halogen-free alternatives (e.g., phosphorus or inorganic types) are environmentally preferred, though they may require higher loading levels to achieve similar flame retardancy.

How does a flame retardant affect the electrical properties of epoxy resin?

It can influence dielectric strength, insulation resistance, and thermal conductivity. Proper formulation ensures minimal impact, but excessive loading may reduce electrical performance, requiring balance between fire safety and functional requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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