TECHNYL® A 218 BK 21N
Unreinforced PA66 · Heat-Aging Stabilized · UL94 V2 · CTI 600V PLC 0 · Black
Heat-Aging Stabilized
UL94 V2
CTI 600V · PLC 0
Tm 263°C
UL94 Rating
CTI (V) · PLC 0
Melting Point (°C)
Stabilized
TECHNYL® A 218 BK 21N is an unreinforced Polyamide 66 (PA66) grade with heat-aging stabilization, designed for injection molding. This grade offers all the primary properties of unreinforced PA66, with improved resistance to high temperature, and can be used for components which will withstand long-term temperature stresses. The black version is suitable for consumer applications, industrial applications and general purpose use.
📋 Product Overview
- Polymer Type: PA66 (Polyamide 66)
- Reinforcement: Unreinforced
- Heat Stabilization: Heat-aging stabilized
- Flame Rating: UL94 V2 (1.5/3.0mm)
- Electrical Performance: CTI 600V (PLC 0), Dielectric Strength 22 kV/mm
- Thermal Performance: Melting Point 263°C, HDT 82°C @ 1.80MPa, 200°C @ 0.45MPa
- Mechanical Performance: Tensile Modulus 3300 MPa, Strain at Break 20% (dry) / 150% (conditioned)
- Impact Performance: Charpy Notched Impact 4.5 kJ/m² (dry), improves to 11 kJ/m² when conditioned
- Processing: Injection Molding
- Colors Available: Black, Natural
- Certifications: RoHS, REACH, UL Yellow Card (QMFZ2.E44716)
- Typical Applications: Consumer applications, industrial applications, general purpose
📊 Technical Data Sheet
Physical Properties
Mechanical Properties (Dry / Conditioned)
Thermal Properties
Electrical Properties
Flammability
✅ UL Yellow Card available (QMFZ2.E44716)
🌟 Key Advantages
- ✅ UL94 V2 Flammability Rating: V2 rating at 1.5/3.0mm thickness
- ✅ Heat-Aging Stabilized: Outstanding long-term thermal aging resistance for long-term temperature stress
- ✅ High CTI: 600V (PLC 0) for excellent electrical insulation
- ✅ High Melting Point: 263°C for higher temperature environments
- ✅ Excellent Toughness: Strain at break up to 150% when conditioned, notched impact improves to 11 kJ/m²
- ✅ Good Flowability: Suitable for injection molding
- ✅ Black Color: Meets industrial application requirements
- ✅ RoHS/REACH Compliant: Meets global environmental regulations
⚙️ Processing Conditions
80°C / 2-4 hours
Dew point ≤ -20°C
0.2%
265 – 275°C
270 – 280°C
280 – 285°C
60 – 80°C
(Up to 120°C for high surface quality)
The material is supplied in airtight bags, ready for use. If the virgin material has absorbed moisture, it must be dried with dehumidified air drying equipment, dew point minimum -20°C, recommended time 2-4 hours.
For unfilled polyamides, DOMO recommends the use of high alloy steel with a low chromium content. For example: X38CrMoV5-1 (EN Norm) – 1.2367 / 1.2343 (DIN Norm).
🎯 Typical Applications
Consumer goods, electronic parts
Industrial parts, structural components
Multi-purpose general components
🔗 Related Products
📎 Download & Technical Support
※ Click to download the complete technical datasheet. For inquiries, please contact us.
Disclaimer: The information provided in this documentation corresponds to our technical knowledge at the date of its publication and does not constitute a specification. DOMO cannot anticipate all conditions under which this information and our products may be used. DOMO accepts no responsibility for results obtained by the application of this information or for the safety and suitability of our products. Users are advised to make their own tests to determine the safety and suitability of each product for their own purposes. Unless otherwise agreed in writing, DOMO sells the product without warranties. Unless specifically indicated, the grade is not suitable for pharmaceutical/medical applications.
Source: DOMO Chemicals Official Technical Datasheet (TECHNYL A 218 BK 21N, Document ID: PID-001556)
Last Updated: June 2026