TECHNOMELT® PUR 4663 is a moisture-curing hot melt-type product containing reactive polyurethane microemission technology. It is suitable for gluing textiles, plastics, and wood in bonding and lamination applications.
TECHNOMELT® PUR 4663 is a multifunctional polyurethane micro-emmission formulated as reactive hot melt technology for advanced assembly applications for interior parts. It provides exceptional adhesion to various substrates, with high initial take and fast curing. It develops a strong, durable bond in industrial processes, withstanding a wide temperature range and exhibiting excellent resistance to water, solvents, and more.
Color: opaque, light ivory
Odor: Weak characteristic
Density, g/cm³: 1.13 to 1.23
Solid content, %: 100
Viscosity (130 °C), Pa.s: 6,000 to 12,000
Open time, s: ~90
Application temperature, °C: 110 to 140
Solvent-free hot melt adhesive system
Polyurethane based
High initial strength
Fast setting
Exhibits moisture cure
Excellent compatibility with many substrates
Duroplastic properties
Resistant to a wide temperature range
1-minute open time
Water and solvent resistance
Chemical crosslinking within days
Cold flexibility
High final bond strength
Degredation of bond due to water, solvents, or high-temperature conditions
Poor compatibility of adhesive with common substrates
Assembly bonding
Bonding and lamination of interior parts
Assembly bonding of wooden parts
Gluing of textiles and plastics
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