Hey guys, the por15 will not stick well to cold panels, it really likes warmed panels. I am thinking that the weather cold have been an issue for you guys in Canada maybe
When i apply it, it is in the middle of a hot day and the panels are hot to touch, it would soak it up more when it is hot compared to cold.
Nice patch panels you are applying, giving yourself plenty of area around the rusty spots not to allow it to come back,
good work