In the pursuit of safer, more efficient, and environmentally sustainable manufacturing practices, a leading CPAP machine manufacturer transitioned from solvent-based bonding to light-cure adhesive technology to increase throughput, improve quality, and eliminate scrap.
A manufacturer of medical device CPAP machines was using a solvent for the assembly of the plastic valve components on the units. The solvent welding process was highly manual, not controlled, and resulted in high scrap rates, with defective valves not being reworkable. Additionally, the use of the solvent required special plant ventilation and handling.
LOCTITE AA 3922,™ a UV and Visible light-curing medical device adhesive, combined with LOCTITE dispensing and LED-curing equipment were the solution:
- Rapid light-cure using the LOCTITE CL40 LED-curing unit for improved throughput
- High adhesion and sealing, easily meeting the 3 PSI (0.2 bar) pressure requirement
- LOCTITE Precision Syringe Dispenser reduced labor time and increased accuracy of assembly
- Fluorescence of adhesive allows for inspection of the liquid-applied adhesive, as well as the cured adhesive on the final assembly
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