Henkel Technomelt PA 668 White Flame-Rated Polyamide Hot Melt Adhesive

Technomelt PA 668 White for UL 94 V-0 Rated Molding Applications

Technomelt PA 668 White is a flame-retardant polyamide hot melt developed for molding applications requiring UL 94 V-0 performance. Its white formulation provides clean visual identification while delivering strong adhesion and mechanical durability. This grade offers reliable creep resistance and flexibility for components exposed to elevated temperatures. The physical setting thermoplastic chemistry enables efficient processing in low pressure molding systems.

Key Features and Benefits of PA 668 White Polyamide

• Flame-Retardant Performance: Meets UL 94 V-0 requirements for applications requiring certified flame resistance.
• High Elongation Capability: Provides flexibility and movement tolerance in molded assemblies.
• Strong Thermal Stability: Maintains performance under sustained elevated temperature conditions.
• Clean White Appearance: Offers visual contrast and identification in electrical and molded components.
• Low Pressure Molding Compatible: Supports consistent processing and efficient thermoplastic encapsulation.

Technical Specifications

• Series: Technomelt PA 668 White
• Type: Hot Melt Adhesive
• Application: Molding
• Chemistry: Polyamide
• Components: One-Component
• Cure: Physical Setting
• Color: White
• Application Temperature: 356 – 446°F (180 – 230°C)
• Softening Point: 302 – 324°F (150 – 162°C)
• Melting Viscosity: 3,000 – 4,200 cps @ 410°F (210°C)
• Density: 0.98 g/cm³ @ 68°F (20°C)
• Shore A Hardness: 90
• Yield Strength: 725 psi (5.0 N/mm²)
• Break Strength: 725 psi (5.0 N/mm²)
• Elongation: 650%
• Temperature Creep Resistance: 266°F (130°C)
• Low Temperature Flexibility: -13°F (-25°C)
• Glass Transition (Tg): -22°F (-30°C)
• Approvals: Flame Rating UL 94 V-0
• Shelf Life: 24 Months (when properly stored)