Formosa (FCFC) TAIRILITE® AC3839
TAIRILITE® AC3839 PC Resin Self Extinguishing Grade
Tairilite AC3839 is a flame-retardant polycarbonate resin engineered for safety-critical components like charging shells, battery housings, and router enclosures. Combining UL 94 V-0/5VA fire resistance, low-temperature toughness, UV stability, and mid-flow processability, this self-extinguishing grade ensures reliability in electronics, automotive, and outdoor industries.
Plastic Granules
Download PDF
ISO Data Sheet
ASTM Data Sheet
UL Product iQ
MSDS
Processing Data
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ISO 1183, 23°C)
Mechanical Properties
- Tensile Strength: 67 MPa (ISO 527, 23°C, 50 mm/min)
- Flexural Strength: 98 MPa (ISO 178, 23°C, 2 mm/min)
- Flexural Modulus: 2060 MPa (ISO 178, 23°C, 2 mm/min)
- Rockwell Hardness: R-120 (ISO 2039-2, 23°C)
Impact Properties
- Charpy Impact Strength (Notched): 70 kJ/m² (ISO 179, 23°C, 4 mm)
Thermal Properties
- Heat Deflection Temperature: 125°C (ISO 75/A, Unannealed, 1.8 MPa, 4 mm, 120°C/h)
Flame Characteristics
- Combustibility: UL-94 V-0 (1 mm), 5VA (3 mm) (File No. E162823)
Injection Molding
- Melt Flow Index: 12 g/10 min (ISO 1133, 300°C × 1.2 kg)
- Molding Shrinkage: 0.4–0.8% (ISO 2577)
Use & applications
Features & Benefits
Superior Flame Retardancy
Tairilite AC3839 achieves UL 94 V-0 at 1mm and 5VA at 3mm, instantly self-extinguishing flames. Ideal for battery shells or power adapters, it reduces fire risks and meets strict safety standards.
Extreme Low-Temperature Toughness
With 70 kJ/m² Charpy impact strength (ISO 179), it withstands drops and shocks in freezing environments. Perfect for automotive parts exposed to subzero conditions without cracking.
UV Resistance & Easy Processing
UV stabilization (UL f1 rating) prevents yellowing in outdoor routers or solar equipment. Mid-flow properties simplify molding complex, thin-walled designs like charging ports.
FAQs
UL Product iQ for AC383(x) lists UL 746C f1 outdoor suitability. The ISO TDS also lists UV resistance. This supports outdoor use, subject to final product validation.
UL Product iQ for AC383(x) lists V-0 at 1.0–3.0 mm and 5VA at 3.0 mm, in ALL colors, with f1. The ISO TDS lists V-0 1 mm and 5VA 3 mm. Verify the exact thickness and color.
The processing guide recommends pre-drying at 120°C for 4–8 hr. Nozzle and middle zones are 260–320°C, rear zone 250–290°C, mold temperature 70–100°C. Do not exceed 330°C.
It is a mid-flow, flame-retardant, low-temperature-impact, UV-resistant grade. It is often chosen for outdoor parts that must withstand cold impact.
AC3839 Related Flame Retardant Grades
Disclaimer:Disclaimer: The grades below are potential alternatives for comparison only from FORMOSA (FCFC). They are not direct drop-in replacements. UL ratings are color- and thickness-dependent. Typical values are not specifications. All property data is from ISO TDS unless otherwise stated. Please verify current UL Product iQ status, request TDS/SDS/COA and test samples before substitution.
| Grade / Manufacturer | Positioning vs. AC3839 | UL94 (ISO TDS) | MFR | HDT | Notched Impact (IZOD / Charpy) | Color | UV / UL 746C f1 |
|---|---|---|---|---|---|---|---|
| AC3830 FORMOSA TAIRILITE® PC |
Same mid-flow UV+f1 FR with the same UL94 coverage, adds light-diffusion optics for LED housings | V-0 1.0–3.0 mm; 5VA 3.0 mm | 12 g/10 min | 128 °C | Charpy 70 kJ/m² | Light diffusion; ALL | UL 746C f1; UV resistance |
| AC9830 FORMOSA TAIRILITE® PC |
Low-temp impact upgrade: ultra-low-temperature copolymer, translucent, V-1 as thin as 0.75 mm | V-1 0.75 mm; V-0 1.5–3.0 mm; 5VA 3.0 mm | 12 g/10 min | 125 °C | Charpy 70 kJ/m² | Translucency; ALL | UV resistance |
| AC3843 FORMOSA TAIRILITE® PC |
Switch to transparent FR with UV+f1 for clear covers & lenses | V-0 3.0–3.3 mm | 12 g/10 min | 128 °C | Charpy 75 kJ/m² | Transparent FR; ALL | UL 746C f1; UV resistance |
↩ Back to FORMOSA (FCFC) Flame Retardant PC Resin Hub (13 grades)
Substitution checklist: Before replacing any grade, verify UL94 at the same wall thickness, UL-listed color, halogen-free declaration, MFR/MVR, HDT, notched impact, UV / UL 746C f1 and processing window.