PU 2HK-N

PU 2HK-N is a two-component polyurethane adhesive designed for the structural bonding of rigid plastic materials, ceramic materials, prepreg fibers.

  • High temperature resistance> 120 ° C
  • Thermosetting structural bonding> 15 MPa
  • Thixotropic and sandable
  • Hot modular reactivity
  • Low exothermic peak during hardening
  • Characterized by a very low shrinkage after hardening
  • Fair flexibility
  • Over-paintable
  • It can be used in various industrial sectors for bonding reinforced polyesters, ABS, polycarbonates and composite materials

 

FCA – Volkswagen approved


Attachment

TDS PU 2HK-N_ENG

Description

PROPERTIES PART A PART B MIXED PRODUCT
COLOUR White Black Dark Grey
VISCOSITY @ 25 °C 50.000 – 80.000 Cps 50.000 – 80.000 Cps _
DENSITY @ 25 °C 1,35 ± 0,05 g/cm3 1,7 ± 0,05 g/cm3 1,53 ± 0,05 g/cm3
OPEN TIME (5mm – 20°C) _ _ 40 – 45 min.
FIXTURE TIME (5mm – 20°C) _ _ 90 – 100 min.
MIXING RATIO BY WEIGHT 100 121 _
MIXING RATIO BY VOLUME 100 100 _
POLYMERIZED PRODUCT PROPERTIES
HARDNESS @ 25°C                                                       (ASTM D-676) 55 – 65 Shore D
SHRINKAGE > 1 mm
LAP SHEAR STRENGHT (ISO 4587)

1 Cycle: (60 min. @ 90°C + 7 days @ R.T.)

SMC/SMC

Lam. cataphoresis / Lam. cataphoresis

Lam. defatted / Lam. defatted

 

 

15 MPa (Substrate failure)

8 MPa

10 MPa

LAP SHEAR STRENGHT (ISO 4587)

1 Cycle: (10 min. @ 90°C + 30 min. @ 140°C + 90 min. @ 150 °C)

SMC/SMC @ 23 °C

SMC/SMC @ 80 °C

 

 

13 MPa (Substrate failure)

6 MPa

LAP SHEAR STRENGHT (ISO 4587)

3 Cycles: (8h @ -45°C + 8h @ +40°C in 98% R.H. + 4h @ -45°C)

Galvanized Parts

 

 

5,70 MPa

THERMAL CONDUCTIVITY 0,6 – 0,65 W/mK
ADHERENCE  (ACI 503R) < 3,5 MPa
RESISTANCE TO THERMAL SHOCKS -40 /+130 °C
ELONGATION AT BREAK(ASTM D-638, UNI EN ISO 527) 45 – 60 %
TENSILE ELONGATION (ASTM D-638, UNI EN ISO 527) 15 – 30 %

Additional information

Specific work-setting (component)

DYNAMIC bonding-line > 100 cm (IMPACTS + VIBRATIONS + TORSIONS), Operating Temperature > 90 ° C, Operating Temperature <0 ° C, STATIC bonding-line <100 cm (LIGHT HANDLING)

Type of joint (application mode)

≈ 100% of SURFACE, BEAD – OVERLAP

Adhesive Working Time

30 ÷ 90 MINUTES

Adhesive Fixture Time

> 90 MINUTES

Substrates (suitable adherings match))

CARBON FIBER-REINFORCED COMPOSITES # CARBON FIBER-REINFORCED COMPOSITES, CARBON FIBER-REINFORCED COMPOSITES # GLASS REINFORCED FIBER COMPOSITES, GLASS REINFORCED FIBER COMPOSITES # GLASS REINFORCED FIBER COMPOSITES, HIGH ENERGY SURFACE THERMO-PLASTIC POLYMERS # CARBON FIBER-REINFORCED COMPOSITES, HIGH ENERGY SURFACE THERMO-PLASTIC POLYMERS # GLASS REINFORCED FIBER COMPOSITES, HIGH ENERGY SURFACE THERMO-PLASTIC POLYMERS # HIGH ENERGY SURFACE THERMO-PLASTIC POLYMERS, SEMI-FINISHED BUILDINGS # SEMI-FINISHED BUILDINGS, WOOD # GLASS REINFORCED FIBER COMPOSITES

component sector/process

AUTOMOTIVE – TRUCK – BUS – AGRICULTURAL, FORESTRY MACHINES, INDUSTRIAL COMPONENTS, MILITARY DEFENCE, TRAINS

Type of failure mode (after joint stress)

ADHESIVE (bonding failure between adhesive and adhering: no residue on substrates), COHESIVE (bonding failure inside the adhesive: residue presence on substrates)

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