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TECHNYL® PROTECT AT 20 V25 BK

PA66/PET Blend Red Phosphorus FR 25% Glass Fiber · UL94 V0 · CTI 600V · Black Color

25% Glass Fiber
UL94 V0
CTI 600V · PLC 0
GWFI 960°C

25%
Glass Fiber
V0
UL94 Rating
600
CTI (V) · PLC 0
960
GWFI (°C)

TECHNYL® PROTECT AT 20 V25 BK (previously TECHNYL AT 20 V25 BLACK) is a PA66/PET blend red phosphorus flame retardant grade, reinforced with 25% glass fiber with heat stabilization, specifically developed for injection molding. This grade offers UL94 V0 rating (0.75mm), excellent glow wire performance (GWFI 960°C), CTI 600V PLC 0, as well as good mechanical properties and surface finish. Suitable for electrical/electronic applications.

📋 Product Overview

  • Polymer Type: PA66 + PET Blend
  • Reinforcement: 25% Glass Fiber
  • Flame Retardant System: Red Phosphorus FR
  • UL94 Rating: V0 (0.75mm); 5VA (1.5/3.0mm)
  • Glow Wire Performance: GWFI 960°C
  • Electrical Properties: CTI 600V (PLC 0), Dielectric Strength 35 kV/mm
  • Heat Stabilized: Yes
  • Processing: Injection Molding
  • Colors Available: Black, Grey, Natural
  • Certifications: RoHS, REACH, UL Yellow Card
  • Typical Applications: Electrical/Electronic Applications

📊 Technical Data Sheet

Physical Properties

Property Standard Value Unit
Density ISO 1183 1.39 g/cm³</td
Humidity Absorption (23°C / 50% RH) ISO 62 1.5 – 1.6 %</td
Water Absorption (24h, 23°C) ISO 62 0.65 – 0.75 %</td
Molding Shrinkage (parallel) ISO 294-4 0.3 %</td
Molding Shrinkage (normal) ISO 294-4 1.0 %</td

Mechanical Properties (DAM / Conditioned)

Property Standard Value (DAM / Cond.) Unit
Tensile Modulus ISO 527-1/-2 9200 / 7200 MPa</td
Stress at Break ISO 527-1/-2 150 / 115 MPa</td
Strain at Break ISO 527-1/-2 2.3 / 2.8 %</td
Flexural Modulus ISO 178 6900 / 4600 MPa</td
Flexural Strength ISO 178 205 / 150 MPa</td
Charpy Impact Strength (+23°C) ISO 179/1eU 40 / 50 kJ/m²</td
Charpy Notched Impact (+23°C) ISO 179/1eA 7.5 / 13 kJ/m²</td

Thermal Properties

Property Standard Value Unit
Melting Temperature ISO 11357-1 260 °C</td
HDT (1.80 MPa) ISO 75 240 °C</td

Electrical Properties

Property Standard Value Unit/Rating
Volume Resistivity IEC 62631-3-1 4.0E+12 ohm.m</td
Surface Resistivity IEC 62631-3-1 1.6E+15 ohm</td
Comparative Tracking Index (CTI) IEC 60112 600 V</td
CTI Performance Level IEC 60112 PLC 0 —</td
Dielectric Strength (1 mm) IEC 60243-1 35 kV/mm</td

Flammability

Property Thickness Standard Rating/Value
UL 94 Flammability 0.75 mm UL 94 V0</td
UL 94 Flammability 1.5 mm UL 94 V0, 5VA</td
UL 94 Flammability 3.0 mm UL 94 V0, 5VA</td
GWFI (0.75/1.5/3.0 mm) — IEC 60695-2-12 960 °C</td
GWIT (0.75/1.5 mm) — IEC 60695-2-13 775 °C</td
GWIT (3.0 mm) — IEC 60695-2-13 850 °C</td
FMVSS Burning Rate 1 mm FMVSS 302 <100 mm/min</td

✅ UL Yellow Card available (QMF22.E44716)

🌟 Key Advantages

  • ✅ UL94 V0/5VA Flammability: V0 at 0.75mm; 5VA rating from 1.5mm
  • ✅ Excellent Glow Wire Performance: GWFI 960°C, GWIT 775-850°C
  • ✅ PA66/PET Blend System: Combines excellent mechanical properties with dimensional stability
  • ✅ 25% Glass Fiber Reinforced: Good balance of mechanical properties
  • ✅ CTI 600V PLC 0: Highest tracking resistance rating for electrical safety
  • ✅ Heat Stabilized: Long-term thermal aging resistance
  • ✅ Excellent Surface Finish: Good appearance
  • ✅ Low Corrosion: Red phosphorus FR system ensures longer processing equipment life
  • ✅ RoHS & REACH Compliant: Meets global environmental regulations

⚙️ Processing Conditions

🌡️ Drying Conditions
80-100°C / 4 hours
Dew point ≥ -20°C
💧 Max Moisture
0.1%
🔥 Rear Temperature
270 – 280°C
🔥 Middle Temperature
275 – 285°C
🔥 Front Temperature
280 – 290°C
🔥 Recommended Melt Temperature
270 – 290°C
🏭 Mold Temperature
80 – 100°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 drying time: 2-4 hours.

All reinforced, flame retardant compounds generate some level of abrasion/corrosion to steel processing equipment. DOMO recommends using steel with high chromium and high carbon content (minimum 16% chromium) to prevent corrosion and abrasion. Strictly follow recommended processing conditions.

🎯 Target Applications

🔌 Connectors
Electrical connectors, terminals
⚡ Electrical/Electronic Applications
Switches, relays, circuit breakers
🏠 Small/White Goods Appliances
Coffee machines, vacuum cleaner components
🔧 Industrial Components
Pump bodies, valve bodies, structural parts

📎 Download & Support

※ Click download links to access the complete technical datasheet. For any questions, 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. Users are advised to make their own tests to determine the safety and suitability for their own purposes. Unless otherwise agreed in writing, DOMO sells the product without warranties. Unless specifically indicated, this grade is not suitable for pharmaceutical/medical applications.

Source: DOMO Chemicals Official Technical Data Sheet (TECHNYL PROTECT AT 20 V25 BK, previously TECHNYL AT 20 V25 BLACK, Document PID-001640)

Last Updated: June 2026

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