UV adhesives for bonding stainless steel needles or cannulas in glass or plastic syringes are solvent-free and fluorescent for a better process control. Suitable for USP Class VI and/or ISO 10993 certification, they offer the ability to bond PC, PVC, PP or ABS to stainless steel and other metals. Fully cured, they withstand high needlepull out forces even after several sterilization cycles. UV blocked plastics can still be bonded and cured with long-wave light.