White paper

Novel LED-cure rigid bonders for medical device assembly

LOCTITE^® LED-curable adhesives cure with high strength across many diverse plastic substrates and have rapid tack free cure times.

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LOCTITE adhesives for medical needle manufacture

UV and visible light-curing of acrylic adhesives is a technology that continues to grow due to its unique medical device assembly applicability. Rapid curing, broad substrate adhesion, and fluorescent detectability make light-cure acrylics the first consideration for many high-speed automated bonding operations.

Henkel has launched two new LED-curable adhesives—LOCTITE^® AA 3961 and LOCTITE AA 3963. These new adhesives cure with high strengths across many diverse plastic substrates and have rapid tack-free cure times. This paper details the combination of new properties, while maintaining key product attributes commonly associated with light-curing acrylic (LCA) adhesives.

Key insights

The rapid tack-free surface cure of adhesives is key for large throughput needle-bonding lines
Improved bond strengths across a variety of plastics, particularly when bonding plastic to stainless steel—commonly seen in needle bonding applications
Designed to maintain bond strength through a variety of sterilization methods
Testing to ISO 10993 biocompatibility protocols for use in disposable and reusable medical devices