AcResin A 203 UV Acrylic BASF Acrylics/ Acrylates ADHESIVE >> Hot-melt ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) ADHESIVE >> Radiation Curing (UV/EB) acResin™ A 203 UV is intended for the production of pressure - sensitive adhesives which are applied as a melt and then crosslinked by brief exposure to UV radiation. acResin™ A 203 UV can be processed on standard hotmelt adhesive coating installations at approx. 120-140 °C. After application, the coating is irradiated with UV light. Standard medium - pressure mercury vapour lamps or microwave - excited UV sources, for example, are suitable. For crosslinking, the wavelength range below approximately 340 nm, especially that between 250 and 260 nm is most effective. An inert gas atmosphere is not required for the irradiation. The exposure time required for crosslinking, i.e. the speed at which the coated surface passes under the UV source, depends on many different factors, including the power of the source, the quantity of material applied and the type and quantity of the additives employed. The crosslinking density, and hence the adhesive properties can be varied within certain limits by the UV dosage. Relatively high levels of radiation result in higher shear strength while lower levels of radiation produce higher tackiness with lower shear strength. Small deviations in the chosen radiation dosage have little effect on the adhesive properties Acrylic based resin. Intended for the production of pressure - sensitive adhesives. Applied as a melt and crosslinked by brief exposure to UV radiation.