Anyone ever throw fresh clear coat over old ?

My 2006 Blue Steel Metallic DC has paint that is in very good shape, all things considered.

BUT . . . the front right fender flare (the plastic portion) appears like it is beginning to lose the clear coat.
Has anyone ever experimented with that Spray Max 2K Clear Coat? (The 2-part that has the hardener in it that you release by pressing that button on the bottom which pierces it allowing for mixture)

I used it on my headlights and was so happy with the results, that my friends had me do their trucks.

Was curious if any paint experts here have fooled around with doing this to a body party on their truck.

TIA

 

Two things to say:

2K Clear is chock full of isocyanates and will kill you. You know how superglue bonds your skin immediately? That's what 2K paint vapor does when it touches your lung tissue. Wear proper protection when using. If you already do, sorry, I always add the disclaimer when someone mentions them.

I'm not a paint expert, but I tried what I think you're recommending on my previous forest green metallic GMC pickup with clearcoat fail. I was told by someone I know (dad's friend) who paints for a living that I'm "stupid for trying this", but he recommended you must chip away the clearcoat OR sand it away OR sand it so the part is flush. Any imperfection or seam between old clearcoat and base will be magnified by the new clear. Once you have it to basecoat, sand the whole part, clean and hit with 2k, multiple light passes, being sure to overlap and fit within the re-coat window on the can (10mins, IIRC?)

My roof turned out embarrassing enough I'm not going to show you pictures. I thought I was doing good, but no amount of clear or wet sanding would've fixed all the little problems. It basically looked about like this guy's end result, little 'sands of sahara' action going on.

https://www.youtube.com/watch?v=HjxilxsL8dg

 

The output of this spray can looks plentiful. The guys overlap is to inconsistent. You need to keep it wet and even to get a smooth finish.