ACCELERATED CURING OF CONFORMAL COATING MATERIALS BY CO2 SPRAY ATOMIZING
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-06
To improve the rate of cure over a typical humidity/CO, cure chamber, CO, atomizing has been introduced upstream at the material spray booth. Atomizing with air is a standard practice in spray applications; the applied material stream is diffused into droplets or "atoms" by the pressurized air. By substituting CO, for air during atomizing, the CO, reacts with the entire conformal coating material layer from the time of application (not just the top layer), accelerating the curing process. The result is a significant reduction in cure time, as well as a robust manufacturing process that allows for varying material thickness without adhesion concerns.