its funny you mention tree sap
as last week I parked under a big pine tree to have truck in the shade, and then it rained
thought nothing of it, till a few days later I noticed I have all sorts of clear like specks on my windows(body parts too I am sure)
and it seems the pine tree had sap that bonded to rain drops, and as they covered the truck, once the water dried, it left all these tiny clear speck's look like fine water droplets, can only see them with the light just right, as there HARD , but if you run your hand/finger over things, you can feel them like super fine sand grains!
they make my wiper blades skip and squeal, at first I thought it was bad wipers, so replaced, but then noticed when the light was just right and running hand across glass(and now whole truck ) there are these sap droplets every where!
I started off with windex to remove, then went to bug and tar remover, then tried some , so called commercial grade sap remover
NOTHING took the stuff on my windows(brake cleaner did remove the STICK sap sections off body work with easy)
NEXT got more aggressive, with heavy soaking rag with GOO BE GONE< , nothing, then went to carb cleaner, brake cleaner, ZIP nothing! still there on all my glass I been trying to remove things from!
like WTF
the carb cleaner/brake cleaner removed the THICK sap with ease, but won;t touch this dried on residue sap!
this stuff/residue is like fine clear glue droplets and worse yet, the whole truck is covered in them
good news is, you cannot see them on body panels, so there not an eye sore, and it seems I can wax over them, and that helps smooth things down, but doesn;t remove them, even with a cleaner and a buffer, as tried that too)
who know's maybe it will prevent rust! trying to think positive here!
ANY how
after trying everything I had at home
I figured, since my biggest concern here is the windshield, as them squeaky skipping wipers are very annoying!
I went and got a big razor blade paint scraper, I figured since they are dry like, maybe I can scrape them off the glass without damage, using care!
added some simple DAWN dish soap, and water for a lube like deal!
and like magic the stuff comes right off super easy as could be!
wish I tried this from the get go!
and then I noticed it came off just as easy with just plain water and the razor blade working it right off! NOW Dawn needed, or any special help from it!
yet every chemical I had didnl;t touch the stuff?/
STILL not sure what to do about it all over body panels, as cannot scrape them like I can glass with a razor blade
but it solved the squeaky wiper blades that were annoying me!
so, like I said, it a lot of times comes down to what the adhesive is as to what works to remove it!!
and now ain;t parking under any pine trees sunny or not, !and all the more so if its raining!