Lightly sanded and then cleaned the cabin top interior with alcohol .
Tried to apply the UV Smooth Prime to the cabin top inside using a new airless hand sprayer purchased for this purpose. Turned out to be a poor decision as this sprayer didn't work at all. It leaked more paint than it sprayed, with the nozzle plugging frequently, the inability to purge all the air from the paint reservoir, and a requirement that the paint reservoir be full to work. Abandoned use of the new airless gun and returned it to the store.
Thined the UV Smooth Prime approx. 1:1 with water and then applied it using the old canister air sprayer. This worked but not very well, with the nozzle getting occasionally plugged and the amount of paint being sprayed being inconsistent. However I managed to get several coats applied. Will likely need to buy a sprayer with a larger nozzle for future spraying of similar thick materials.
