5 lbs is a little much for me... hobbyist
How long is the shelf life of unused powder? I've heard that it will "get old", but I don't know what the results of using old powder are, or how long it takes to get "old". If it will last awhile, the weatherable urethane gloss clear 110-180 sounds like it will do the job. How much does 5 lbs cost? Thanks!
Hemi-T