Henkel Technomelt PA 657 Black Encapsulation Hot Melt

Also known as Macromelt OM 657

SKU: HENKEL-251715

Manufacturer Part #: 251715

UPC: 7798063669854

Sale price$1,470.00
Get free equipment with your purchase. Learn more

Product Highlights

  • Brand: Henkel
  • Adhesive Type: Bulk Hot Melt
  • Contact Us with Questions

Henkel Technomelt PA 657 Black Encapsulation Hot Melt Overview

Henkel Technomelt PA 657 is a high-performance thermoplastic polyamide designed to meet low-pressure molding process requirements. This product can be processed at a low processing pressure due to its low viscosity, allowing the encapsulation of fragile components without damage. This material produces no toxic fumes and provides a good balance of low and high-temperature performance.

Features and Benefits

  • Easy moldability
  • Good adhesion to a variety of substrates
  • Cold temperature flexibility
  • Excellent moisture resistance


  • Series: Technomelt PA 657 Black
  • Type: Hot Melt Adhesive
  • Application: Molding
  • Chemistry: Polyamide
  • Components: One-Component
  • Cure: Physical Setting
  • Appearance: Black
  • Molding Temperature: 356°F to 446°F (180°C to 230°C)
  • Operating Temperature Range: -40°F to 212°F (-40°C to 100°C)
  • Softening Point: 302°F to 329°F (150°C to 165°C)
  • Melting Viscosity:
    • Approx. 8,600 cps @ 356°F (180°C)
    • Approx. 6,500 cps @ 374°F (190°C)
    • Approx. 4,900 cps @ 392°F (200°C)
    • Approx. 3,000 cps to 4,500 cps @ 410°F (210°C)
  • Specific Gravity @ 68°F (20°C): 0.98 g/cm³
  • Shore A Hardness: 77
  • Yield Strength: 375 psi (2.6 N/mm²)
  • Break Strength: 390 psi (2.7 N/mm²)
  • Elongation: 350%
  • Temperature Creep Resistance: 257°F (125°C)
  • Low Temperature Flexibility: -58°F (-50°C)
  • Water Absorption (1 Day) 1.4% @ (23°C)
  • Glass Transition Temperature (Tg) -49°F (-45°C)

Submit the form below to get the Technical Data Sheet (TDS) or Safety Data Sheet (SDS) for Technomelt PA 657 sent to your email address.

Questions about Technomelt PA 657? Our team of adhesive specialists can help. Submit your questions and we'll get you answers right away.

Authorized Distributor

Hotmelt.com is an authorized distributor of Technomelt products from Henkel Adhesives.

View all Henkel Technomelt products

Guaranteed Safe Checkout

American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard PayPal Shop Pay Venmo Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Your Recently Viewed Items