Applications

Jowatherm-Reaktant 604.25

  • Product code: Jowatherm-Reaktant 604.25
  • Manufacturer: Jowat
  • Package size: contact us for details
  • Shelf Life: contact us for details

Jowatherm-Reaktant® 604.25 is a high-performance polyurethane (PUR) hot melt adhesive specifically designed for window profile wrapping. It offers high initial strength and excellent adhesion to a broad range of materials, particularly PVC and aluminum.

This adhesive is typically used in combination with Jowat® Primer 406.84, a VOC-reduced, NEP-free primer, ensuring optimal surface preparation and superior bonding performance. Both the adhesive and primer contain UV tracers, allowing for inline quality control during the application process.

Key Features:
✔ High initial strength for strong, reliable bonding
✔ Broad adhesion spectrum – ideal for PVC and aluminum profiles
✔ RAL-GZ 716 approved – meets industry standards
✔ UV tracer for quality inspection during application
✔ Fast crosslinking – fully cured within 24 hours
✔ Compatible with Jowat® Primer 406.84 for enhanced adhesion

Applications:

  • Window profile wrapping
  • Laminating aluminum and PVC profiles
  • High-strength industrial bonding applications

General Properties

Property Jowatherm-Reaktant® 604.25
Adhesive Type Polyurethane (PUR) Hot Melt
Processing Temperature (°C) ~120 – 140
Viscosity at 140°C (mPas) ~25,000
Open Assembly Time (seconds) 10
Crosslinking Speed (hours) 24
Feed Speed (m/min) 6 – 40
Density (g/cm³) ~1.12
UV Tracer Yes
RAL-GZ 716 Approval Yes

Jowat® Primer 406.84 (Recommended for Use with 604.25)

Property Jowat® Primer 406.84
VOC Content (%) 29
Dosing for Application by Felt (g/cm³) 8 – 16
Drying Method Hot air blower (against the direction of feed)
Hazardous Substance Labelling No
UV Tracer Yes
RAL-GZ 716 Approval Yes

Storage & Shelf Life

Property Value
Storage Conditions Store in original, unopened containers in a cool, dry place
Moisture Sensitivity High – avoid exposure to air & humidity

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