Tree Sap Removal
Sap and resin lifted off paint and glass without scraping or scratching.
Street parking under mature trees is a fact of life in neighborhoods like Noe Valley, Bernal Heights, the Richmond, and much of Glen Park. The trade-off is sap, resin, and pollen dropping onto the car every day it sits there.
Sap hardens, and hardened sap that has cooked in sun can etch a ring into the clear coat even after the deposit itself is removed.

Removal method
Deposits are softened with a solvent formulated for automotive finishes, then lifted rather than scraped. Anything remaining is addressed with clay, which shears the residue off at the surface without abrading it.
If the sap has etched the clear coat underneath, light machine polishing is the next step — see paint correction.
For cars that park under trees permanently
Regular washing matters more than anything else. A protected surface also helps considerably: sap sits on top of a sealant or coating rather than bonding to bare clear coat, so it comes off with far less effort.
Frequently asked questions
Should I try to pick sap off myself?
No. Fingernails and plastic scrapers cut into clear coat. Softening chemistry is the safe route.
Does sap damage glass?
It does not etch glass the way it etches paint, but it needs to be removed properly or it smears under the wipers.