Flame Retardant PBT
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Flame Retardant PBT

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Flame-Retardant PBT Resin Pellets - Fire-Safe·High Flow·Heat-Resistant Solution


I. Core Selling Points

✅ Superior Flame Retardancy: UL94 V0 (0.8-3.2mm), LOI ≥28% (ASTM D2863), self-extinguishing in 5s; halogen-free/halogen-containing options

✅ PBT Performance Preservation: Retains 95% mechanical/processing properties of virgin PBT, notched Izod ≥5 kJ/m² (23℃), HDT (1.8MPa) ≥120℃

✅ Low Smoke & Toxicity: Smoke density (Ds) ≤150 (ASTM E662), low toxic gas emission (halogen-free grade meets RoHS 2.0), safe for enclosed spaces

✅ High Processing Efficiency: MFR 20-40 g/10min (235℃/2.16kg), fast crystallization, low warpage, ideal for thin-wall precision parts (≥0.8mm)

✅ Environmental Stability: Continuous use temperature (-40~120℃), moisture absorption ≤0.25%, no performance degradation in humid environments

✅ Multi-Scene Compliance: UL Yellow Card, IATF 16949 (automotive), RoHS/REACH, FDA 21 CFR §177.1500 (food contact optional)

✅ Customizable Formulation: Flame retardant grade (UL94 V0/V1), halogen-free/halogen-containing, high-flow/UV-stabilized modifications


II. Core Product Specifications (Professional Table with Data Support)

Performance Category

Test Item

Test Standard

Typical Value (Halogen-Free V0/Halogen-Containing V0/High-Flow V0)

Unit

Basic Properties

Density

ASTM D792

1.35-1.40 / 1.33-1.38 / 1.32-1.37

g/cm³


Water Absorption (24h/23℃)

ASTM D570

≤0.22 / ≤0.20 / ≤0.21

%


Shrinkage Rate (flow)

ASTM D955

1.2-1.5 / 1.1-1.4 / 1.3-1.6

%

Flame Retardancy

UL94 Flame Class (1.6mm)

UL94

V0 / V0 / V0

-


Limiting Oxygen Index (LOI)

ASTM D2863

≥29 / ≥30 / ≥28

%


Smoke Density (Ds, 4min)

ASTM E662

≤140 / ≤150 / ≤145

-

Mechanical Properties

Tensile Strength (Yield)

ASTM D638

50-58 / 52-60 / 48-56

MPa


Elongation at Break

ASTM D638

3-5 / 4-6 / 5-7

%


Notched Izod Impact (23℃)

ASTM D256

5-7 / 6-8 / 7-9

kJ/m²

Thermal Properties

Heat Distortion Temp (1.8MPa)

ASTM D648

120-128 / 122-130 / 118-126


Continuous Use Temperature

-

-40~120 / -40~125 / -40~118


Vicat Softening Point

ASTM D1525

150-160 / 152-162 / 148-158

Processing Properties

Melt Flow Rate (235℃/2.16kg)

ASTM D1238

20-28 / 25-35 / 32-40

g/10min

Compliance Certifications

Flame Retardancy

UL Yellow Card

Certified / Certified / Certified

-


Automotive Grade

IATF 16949

Compliant / Compliant / Compliant

-


Environmental Safety

RoHS 2.0/REACH 197 SVHC

Compliant

-


Food Contact (optional)

FDA 21 CFR §177.1500

Compliant

-

Note: High-flow grade fits thin-wall parts (0.8mm) with UL94 V0; Halogen-free grade meets EU RoHS 2.0 & REACH SVHC; UV-stabilized grade retains ≥90% flame retardancy after 1000h ASTM G154 aging.


III. Target Application Scenarios (Industry + Pain Points + Solutions)

1. Electronic & Electrical → Fire Safety + Precision

Applicable Products: Connectors, relay housings, 充电桩 (EV charging pile) components, server backplanes, switchgear parts

Core Value: UL94 V0 (0.8mm) for thin-wall precision, high flow (MFR≥32g/10min) for complex molding, low smoke density avoids visibility loss in enclosed spaces

2. Automotive Industry → Flame Retardancy + Low VOC

Applicable Products: Sensor housings, wire harness brackets, EV battery pack accessories, underhood electrical components

Core Value: IATF 16949 compliant, low VOC meets automotive interior standards, -40~125℃ temperature resistance for extreme climates

3. Industrial Machinery → Durability + Efficiency

Applicable Products: Electrical control box parts, motor end caps, switch housings, industrial valve components

Core Value: Moisture resistance (water absorption ≤0.22%), chemical resistance to industrial fluids, fast crystallization for high production yield

4. Consumer Electronics → Practicality + Safety

Applicable Products: Power adapter shells, small appliance housings (microwave/air conditioner), USB-C connectors, LED driver cases

Core Value: Shatterproof vs. brittle plastics, high flow for miniaturized parts, RoHS compliant for global markets

5. Medical & Healthcare (Special Grade)

Applicable Products: Medical device electrical housings, diagnostic equipment switch parts, hospital electrical enclosures

Core Value: Halogen-free option (eco-friendly), low toxic gas emission (safe for medical environments), FDA-compliant for indirect contact


IV. Quality Assurance System (Build Procurement Trust)

1. Production Process

Adopts nanoscale flame retardant dispersion technology + PBT crystallization tuning, uniform additive distribution (agglomeration rate ≤0.5%), no flame retardant migration or mold corrosion

Fully automated twin-screw extrusion lines, real-time monitoring of flame retardancy/melt viscosity, raw material purity ≥99.8% (high-grade virgin PBT + non-toxic flame retardants)

Batch Stability: Flame retardancy consistency (UL94 grade no deviation), mechanical performance fluctuation ≤±3%, monthly capacity 9,000 tons

2. Testing Standards

Full-Process Inspection: Raw material flame retardant compatibility test → Dispersion analysis → Flame retardancy/mechanical/thermal/processing testing → Smoke density/toxicity validation

Testing Equipment: UL94 flame retardancy tester, oxygen index meter, smoke density analyzer, tensile/impact tester, melt flow rate meter

3. Certification Qualifications

Basic: ISO 9001, ISO 14001, RoHS 2.0, REACH 197 SVHC

Special: UL Yellow Card (UL94 V0), IATF 16949 (automotive), GB 8624 (China fire code), FDA 21 CFR §177.1500, SGS flame retardancy certification


V. Cooperation Support (Lower Procurement Threshold)

✅ Sample Support: Free 5kgs standard samples (Halogen-Free V0/Halogen-Containing V0), custom high-flow samples (6-day delivery, with UL test report)

✅ Customization Service: Flame retardant grade (UL94 V0/V1), halogen-free/halogen-containing option, high-flow/UV-stabilized/anti-scratch modification, color matching (Pantone/RAL)

✅ Technical Support: Molding parameter optimization (230-260℃), thin-wall part processing guidance, mold fouling prevention advice

✅ Logistics Guarantee: Global shipping (EXW/FOB/CIF), moisture-proof vacuum packaging (25kg bags/1000kgs/pallet), safety stock for urgent orders

✅ After-Sales Guarantee: 1-year quality warranty, free replacement for non-compliant batches (flame retardancy grade deviation), 48h technical troubleshooting


VI. Contact & Inquiry (Call to Action)

Inquiry Hotline: +86-159 9584 3932

Business Email:st002.sale@seetou.com

Online Consultation: Click [Live Chat] for instant quote & custom flame retardant solution

Factory Address: Room 1111B, 11th Floor, Nandu Plaza Tower, No. 18 Fengjin South Road, Wuzhong Economic Development Zone, Suzhou city (On-site audit & flame retardancy testing welcome)

Get your fire-safe & high-efficiency Flame-Retardant PBT solution + free sample today!


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