Limelite

Hello and thank you for the inquiry,

You have the cure times switched in your question.

Limelite (PMB-0869) has a cure time at 12 minutes at 400 degrees F.

Clear Vision (PSS-2974) has a cure time of 18 minutes at 355 degrees F after a flow-out at 390 degrees F.

Basically you will disregard the Limelite (PMB-0869) cure time and only partial cure or wait until flow-out (add a minute past flow-out for good measure). Flow-out usually happens at around 250 to 300 degrees F. Then pull the part from the oven and allow to cool. With a lower KV setting (if possible) Apply Clear Vision (PSS-2974) then cure both coatings based on Clear Vision's cure schedule. Start with an oven that was reset to 390. Place into the oven and wait for flow out (390 because powders like a fast flow-out and its under 400 so as not to burn the Clear Vision). Once slow-out is achieved (again, flow-out usually happens between 250 and 300) reset the oven to 355. Meanwhile the part is still climbing in temperature. Once it reaches 355 (substrate temp) then set the cure timer for 18 minutes.