Applications

Bostik Thermelt 865 Natural Polyamide Hot Melt Resin

Brand: Bostik
Product Number: Thermelt 865 Natural
Technology: Polyamide Hot Melt Resin
Color: Natural
Cure Type: Low-Pressure Molding
Package Size: 20Kg bag (pellets)
Shelf Life: 12 months

Product Description

Bostik Thermelt 865 Natural is a pure copolymer polyamide hot melt resin designed for low-pressure molding applications. It is a non-reactive, solvent-free adhesive with good flexibility, impact resistance, and moderate flame retardancy (UL94 V-2, UL file E116659). It is mainly used for molding electronic/electric components, connectors, and cables.

Key Features

  • Low-pressure molding for delicate components
  • Flame retardant (UL94 V-2 certified)
  • Good flexibility and impact resistance
  • Solvent-free and moisture-resistant formulation
  • Compatible with melters and extruders

Recommended Applications

  • Encapsulation of electronic/electric components
  • Molding of connectors and cables
  • Industrial applications requiring impact resistance

Technical Data

Physical Properties
Property Value Standard Test
Viscosity (210°C, SC4, 50 RPM) 2.5–3.5 Pa.s ASTM D3236
Softening Point 149–165°C ASTM D3461
Water Content <0.2% Bostik Internal Test
Commercial Shape Pellets
Mechanical Properties
Property Value Standard Test
Yield Strength (50 mm/min, 23°C) >2.8 MPa ISO 527
Strength at Break (50 mm/min, 23°C) 3.0 MPa ISO 527
Young’s Modulus (50 mm/min, 23°C) 32 MPa ISO 527
Elongation at Break (50 mm/min, 23°C) >200% ISO 527
Thermal Properties
Property Value Standard Test
Vicat Softening Temperature (A120) 31°C ISO 306
Glass Transition Temperature -50°C Bostik Internal Test
Electrical Properties
Property Value Standard Test
Transversal Resistivity (500V) 2.8 × 10¹¹ Ω·cm IEC 60093
Dielectric Rigidity (23°C) 18 kV/mm IEC 60243-1
Relative Permittivity (50Hz, 23°C) 5.7 F/m IEC 60250
Miscellaneous Properties
Property Value Standard Test
Density ~1 Internal Test
Water Absorption (Immersed, 23°C) 3.0% ISO 62
Hardness (Shore D, 23°C) 31 ISO 868

Processing Conditions

Parameter Value
Melt Temperature Range 190–210°C
Mold Temperature Range 20–60°C
Drying Time (Air Oven, Thin Layer) 8 hours
Drying Temperature 70°C
Processing Moisture Content <0.2%

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FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

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