Applications

TECHNOMELT® PA 638 BLACK – Polyamide hot melt adhesive for low pressure molding and encapsulation applications

  • Item Name: TECHNOMELT® PA 638 BLACK
  • Manufacturer: Henkel
  • Product Category: Hotmelt Adhesive
  • Technologies: Polyamide, Thermoplastic, One-component
  • Applications: Molding applications
  • Color: Black
  • Cure Type: Physical setting
  • Package Size: Contact Techniq VN for details.
  • Shelf Life: 24 months

1. Product Overview

TECHNOMELT® PA 638 BLACK is a one-component, polyamide-based hotmelt adhesive designed for molding applications. It is thermoplastic and cures by physical setting.

  • Technology: Polyamide
  • Product Type: Hotmelt
  • Cure: Physical setting
  • Application: Molding
  • Color: Black

2. Applications

  • Suitable for molding applications.
  • Works with hotmelt application systems.
  • Can be applied at 200–240°C.
  • Has good thermal and low-temperature resistance.

3. Typical Properties

Property Value Test Method
Density (g/cm³) at 20°C 0.98 ISO 1183-1
Softening Point (°C) 170–180 ASTM E28 (in glycerine)
Melting Viscosity (mPas) 5,000 at 200°C
2,800–4,000 at 210°C
2,900 at 220°C
2,300 at 230°C
ASTM D 3236 (RVT, spindle 27)
Shore A Hardness 90 ISO 868/15s
Yield Strength (N/mm²) 4.5 ISO 527 (Cross-head speed: 50mm/min)
Break Strength (N/mm²) 5.2 ISO 527 (Cross-head speed: 50mm/min)
Elongation (%) 300 ISO 527
Temperature Creep Resistance (°C) 155 Henkel method MH 11
Low Temperature Flexibility (°C) -30 ASTM D 3111
Glass Transition (°C) -36 DSC, 2nd Run
Flammability UL 94 V-0
Working Temperature Range (°C) -40 to 130 Depends on application

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