Needle-Bonding Adhesive Provides Easy Cure Confirmation and Post-Cure Inspection

Dymax Corporation’s new 1405-M-UR-SC medical device adhesive is LED curable, facilitating fast cures at both 385 and 405 nm wavelengths.  The adhesive has a low viscosity of 150 cP, making it ideal for tight-tolerance needle-bonding applications. 1405-M-UR-SC is formulated with Encompass^™ technology, which incorporates Dymax exclusive See-Cure color change and Ultra-Red^™ fluorescing technologies with LED-curing capabilities into one product.  As a result, manufacturers gain efficiencies from rapid on-demand curing with easy cure confirmation and post-cure bond-line inspection.

While in an uncured state, the adhesive is blue in color for easy verification of placement.  As the product cures with sufficient exposure to UV light, its blue color transitions to colorless and provides obvious visual confirmation that the adhesive is fully cured and the bond site secure.

After cure, 1405-M-UR-SC fluoresces bright red under low-intensity black light (365 nm), contrasting extremely well on plastics that naturally fluoresce blue in color (like PVC).  This allows manufacturers to incorporate automated or manual quality inspection to verify complete and accurate placement of the adhesive after cure.

The product is also available in a high-viscosity version at 7,000 cP, 1405M-T-UR-SC, offering excellent dispense control for larger bond gaps.  Both products are suitable for bonding stainless steel, PC, PMMA, and ABS.