Plantsville has the tree cover that makes an older village worth living in, and a lot of houses there have no driveway to speak of. The result is a great many cars parked under mature trees for months at a time.
Sap is the single most under-rated form of paint damage we see locally, mostly because it looks harmless.
What sap does, and how fast
Fresh sap is a sugary resin. It sits on the clear coat as a small raised bead and does nothing at all for a day or two.
Then it starts to harden and shrink. As it contracts it grips the surface underneath, and in warm weather the sugars begin to react with the clear coat. Within a week of sun you no longer have a deposit sitting on paint — you have a small etched depression in the paint where the deposit was, which stays visible after the sap itself has gone.
On a hot bonnet the timeline compresses to a couple of days. On a car parked in shade in October it might take a month.
The mistake that makes it worse
The instinctive fix is to pick it off with a fingernail. That removes the sap and a ring of clear coat with it, and leaves a mark far more obvious than the sap was.
The second mistake is scrubbing at it dry with a towel. Hardened sap is harder than the clear coat around it, so scrubbing drags a solid particle across paint. Same outcome as the fingernail, over a wider area.
What actually removes it
A dedicated solvent, given time to soften the resin, then lifted rather than rubbed. Fresh sap comes away completely and leaves nothing behind. Clay removes what remains bonded.
That is part of our exterior detail at $145 and our full detail at $275.
If it has already etched — a visible dimple or dull ring on a clean dry panel where the sap used to be — solvent will not fix it, because the damage is now in the paint rather than on it. Levelling that is paint correction at $449. We will tell you which one you have when we see it, and we will not sell you correction you do not need.
Bird droppings, same clock
The same applies with more urgency to bird droppings, which are acidic and etch faster than sap in warm weather — sometimes within a day on a hot panel.
Under a mature canopy you get both. A sealant does not stop either, but it gives them something sacrificial to attack first and buys you the time to get them off. That is worth more in Plantsville than in most places.