Polyurethane adhesive UV-LUX®

for plasticsfor aluminumfor polyurethane

Overview
Combine the best of two worlds: the benefits of pressure sensitive adhesive tapes and liquid adhesives for improved cost-efficiency, increased process reliability and higher bonding strength. Reactive films and tapes are dimensionally precise and pre-applicable, guaranteeing quick and clean processing. Lohmann offers thermosetting polyurethane and epoxy chemistries and a UV-activatable technology (UV-LUX®) with semi-structural to structural bonding performance.

Key technologies

• UV-LUX® — UV-activatable tape (epoxy-based, modified UV-activatable)
• DuploTEC® SBF Polyurethane — thermosetting polyurethane film (thermosetting polyurethane adhesive system, solvent-free dry adhesive film)
• DuploTEC® SBF Epoxy — thermosetting epoxy tape (epoxy-based thermosetting tape with initial adhesion)

UV-LUX® (UV-activatable tape)
UV-LUX Technology is a UV-light activatable adhesive tape solution with color change for process safety. It enables dark curing (no continuous thermal input required), provides an initial tack for positioning and a visible color change for precise process control. Patents pending; first application examples available.

UV-LUX® — Features & process

• UV-activation at ~365 nm within seconds
• Optional color change at activation to ensure safe processing and easy inspection
• Up to 10 minutes open time (depending on formulation and process)
• Immediate handling strength after activation to allow further processing
• Full strength typically achieved ~24 hours after activation
• PSA-like applicability with initial tack for easy placement

DuploTEC® SBF Polyurethane (Thermosetting polyurethane film)
Strong, flexible and quick to process; rapid networking at low temperatures makes this adhesive film suitable for short cycle times and applications requiring elasticity after curing.

Polyurethane — Technology & process

• Thermosetting polyurethane adhesive system, solvent-free, dry adhesive film
• Latent reactive system with structural bonding characteristics
• Pre-applicable between 50–55°C
• Storage up to 3 months after pre-application (depending on conditions)
• Activation typically between 70–160°C; activation within seconds possible depending on process and formulation
• Stays elastic and flexible after curing

DuploTEC® SBF Epoxy (Thermosetting epoxy tape)
Epoxy-based thermosetting tapes combine initial tack for easy application with structural bonding performance after curing; well suited where high heat and chemical resistance are required.

Epoxy — Technology & process

• Epoxy-based thermosetting tape with initial adhesion
• Structural bonding characteristics; extremely resistant to aging and chemicals
• Curing typically starts from 130°C (266°F); curing time depends on temperature and formulation
• Adaptable to individual process conditions; recommended minimum pressure ~1 N/cm² during bonding

Your benefits

• PSA-like applicability (initial tack) with structural bonding performance after curing
• Improved process reliability and handling (positioning, color-change verification with UV-LUX®)
• Short cycle times and low curing temperatures available (depending on chemistry)
• Compensation for static and dynamic forces; high temperature, aging and chemical resistance (epoxy variants)
• Dimensional precision and pre-applicability enable quick and clean processing

Applications & notes
Structural bonding films and tapes target industries such as automotive (glazing, exterior/interior), electronics, cards & security, home appliances and other industrial applications where reliable, high-strength adhesive connections are needed while maintaining easy application and process integration.

Caractéristiques / spécifications techniques

• Denomination commerciale: DuploTEC® SBF (Polyurethane and Epoxy chemistries)
• Technologies disponibles: UV-activatable epoxy (UV-LUX®), thermosetting polyurethane film, thermosetting epoxy tape
• UV activation wavelength: ~365 nm; activation within seconds
• UV-LUX® open time: up to 10 minutes (depends on formulation/process)
• Full strength after activation: typically ~24 hours
• Polyurethane pre-application: 50–55°C; storage after pre-application: up to 3 months (process dependent)
• Polyurethane activation range: ~70–160°C (formulation dependent); activation within seconds possible
• Epoxy curing start: from ~130°C; curing time depends on temperature and formulation
• Minimum bonding pressure: ~1 N/cm² (epoxy guidance)
• Form factors: pre-applicable films/tapes with various formulations and thicknesses; initial tack for positioning
• Properties: (semi-)structural bonding behaviour, low curing temperatures (PU), high heat and chemical resistance (epoxy), elasticity after curing (PU)