TECHNYL® PROTECT Red Phosphorous FR Series
Red Phosphorous Flame Retardant Polyamide · UL94 V0 · Verified by Phosphine Emission Test
In the electrical and electronics industry, material safety and reliability are critical. The TECHNYL® PROTECT red phosphorous flame retardant series offers UL94 V0 ratings and excellent electrical properties, widely used in connectors, circuit breakers, small appliances, and other electrical insulation components. This article introduces two materials for E&E applications and shares the process and results of phosphine emission testing.
- Base Resin: PA66
- Flame Rating: UL94 V0 (0.75mm)
- CTI: 400V (PLC 1)
- Tensile Modulus: 9400 MPa
- HDT: 244°C @ 1.8MPa
- Applications: Connectors, Insulation Parts, Small Appliances
- Base Resin: PA66 + PET Blend
- Flame Rating: UL94 V0 (0.75mm) / 5VA (1.5mm)
- CTI: 600V (PLC 0) · Highest Rating
- GWFI: 960°C · Highest Rating
- Applications: Circuit Breakers, Relays, Demanding Electrical Components
🧪 Phosphine Emission Test
Red phosphorous flame retardant materials may pose a risk of phosphine (PH₃) emission in long-term humid and hot environments, which could cause corrosion of metal contacts. To ensure long-term reliability in E&E applications, DOMO conducted rigorous emission tests on the TECHNYL PROTECT red phosphorous FR series.
- Environment: 70°C · 4 weeks (672 hours)
- Samples: 2 impact bars (80×10×4 mm) + metal specimen
- Method: Metal specimen placed at bottom of test tube, impact bars above, water added, sealed, and placed in 70°C environment
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After accelerated aging at 70°C for 4 weeks, no visible phosphine emission was observed on the metal specimens for both materials. Each product was tested twice to verify reliability. This confirms the long-term stability of the TECHNYL PROTECT red phosphorous FR series in humid and hot environments, making it safe for E&E components sensitive to metal contact corrosion.
🔬 Red Phosphorous Flame Retardant Technology
Achieves UL94 V0 rating at low addition levels, minimizing impact on mechanical properties.
Compliant with RoHS, REACH, with low smoke and low corrosive gas emissions.
CTI up to 600V (PLC 0) with excellent dielectric strength for high-voltage applications.
Verified by rigorous emission testing for long-term use in humid and hot environments.
🏭 Typical Applications
A 20 V25 NC is widely used in power connectors and terminal blocks, leveraging UL94 V0 rating and good mechanical properties for electrical safety.
AT 20 V25 BK, with CTI 600V (PLC 0) and 5VA rating, is ideal for circuit breaker and relay housings.
Both materials are suitable for internal insulation components in coffee machines, vacuum cleaners, and other small appliances.
| Property | A 20 V25 NC | AT 20 V25 BK |
|---|---|---|
| Base Resin | PA66 | PA66/PET Blend |
| CTI | 400V (PLC 1) | 600V (PLC 0) |
| GWFI | Standard | 960°C |
| 5VA Rating | — | ✅ (1.5mm) |
| Color | Natural | Black |
| Recommended Applications | Connectors, Insulation Parts | Circuit Breakers, Demanding E&E Components |