ADHESIVES
AssureCure™ adhesives may be customized to meet specific application needs*. The following parameters and ranges should be considered:
| Product Attribute | Possible Range |
| Viscosity | 150 cP – Gel |
| Modulus | 25,000 to 175,000 PSI |
| Elongation | 5 to 300 % |
| Key Substrates | Plastic, Metal, Glass |
| Special Substrates | Plasticized plastics (PVC, PU) |
| Cure Profile/Equipment | LEDs & Traditional UV/Visible Bulb Sources |
*Henkel qualification required; annual volume minimums may apply.
Light Cure Acrylic Adhesives
Light cure acrylic adhesives must be exposed to light of sufficient surface intensity and the appropriate wavelength to activate the curing mechanism. The wavelengths of light are found in the electromagnetic spectrum which categorizes radiant energy by wavelength.. Light cure acrylic adhesives are typically cured using ultraviolet and/or visible wavelengths of light in the range of 200 to 500nm.
The Electromagnetic Spectrum
How They Cure
The following schematic illustrates the sequence of events of a typical light curing reaction. All liquid light cure adhesives contain photoinitiators which are shown as double red spheres. When the liquid adhesive is exposed to light of an appropriate wavelength and intensity the photoinitiators absorb the light energy and fragment into reactive free radicals. These free radicals react with the monomers, shown as single white spheres, initiating an extremely rapid polymerization process.
The Light Cure Process
