5 Very Common Things that Can Ruin the Finish on Your Car

Tony Mers • February 28, 2020
auto paint shop

While the hazards that our cars are exposed to are nearly infinite, there are three things that cause auto body and finish damage more than any others: collisions, negligence, and weather. Among those, there are five mundane and potentially overlooked things that happen every day and are likely, in the long run, to send you hustling to the auto paint shop. Read on for a list of ordinary things that can have an extraordinary impact on the look and finish of your car.

Light

The ultraviolet rays from the sun can be as destructive to the finish on your car as they can be to your skin: they can damage it, slowly burn it, and leave it looking older than it is. Many of us must leave our cars exposed to sunlight for many hours per day, at least. Over time, that exposure erodes the finish and paint, leaving your car looking dull and faded. Experts in auto paint shops recommend keeping cars garaged, if possible, parked under a carport or in a shaded area, or protected by a car cover. This step will prevent or at least minimize damage from light and save you a trip to the auto paint shop.

Insects

Insect carcasses smashed and smeared across auto grills, windshields, and bodies are not just unsightly and grisly, they’re also damaging to your car’s finish. The acidity in the decomposing carcasses can eat away at your car’s finish, leaving paint exposed to the elements and dulled areas. While there is almost nothing to be done to prevent contact with flying insects, it is important to clear the detritus of accumulated insects from your car as thoroughly and frequently as possible.

Acidic Beverages

We’ve all placed beverages on our cars. And we’ve all found that the curved and sloping contours of almost every surface of a car’s exterior are not ideal for balancing beverages. Inevitably, they tip, topple, and spill. It’s not just an inconvenience: acidic beverages like soda, coffee, beer, and others can erode your car’s finish if not cleaned thoroughly and immediately. In addition, many of these beverages contain strong artificial coloring which can leave permanent stains that can only be corrected by a trip to the auto paint shop.

Bird Waste

It’s not just an insult: it can be an injury to your car’s finish. Bird waste, nearly impossible to avoid especially during warm weather, contains digestive acids and can have the same impact on your car’s finish as insect carcasses and acidic beverages. Further, bird waste can contain abrasives that make it easier for damaging acids to penetrate your car’s paint. Professionals from auto paint shops advise that bird waste be cleared immediately and the affected area thoroughly cleaned with water and an appropriate detergent.

Sap from Trees

The roofs of our cars tend to be overlooked, but they are as vulnerable to some of these hazards as the rest of the car, especially sunlight and tree sap. Of all of these, tree sap can be the most difficult to clean and the most damaging. The chemicals in tree sap have destructive interactions with the paint and finish on your car. Auto paint shop veterans recommend clearing up sticky, binding adherent with a finish-safe cloth and a small amount of an appropriate rubbing or polish compound, then washing the affected surface as you would for other common stains.

In the event that your car has already suffered long-term damage from one, some, or all of these common hazards, all is not lost. A qualified auto paint shop or auto body shop will be able to guide you through the steps necessary to get your vehicle looking like new as quickly as possible. And while you’re there, you can learn more about repairing other common types of damage, from hail damage to parking lot ding dent repair.


A woman with long brown hair wearing a tan coat and using a silver laptop at a round table.
October 26, 2026
An auto repair quote includes much more than replacement parts and labor. Learn what else a repair quote includes and what to expect before authorizing repairs.
A person wearing white gloves polishing the front of a dark car with a yellow rotary buffer beside i
October 21, 2026
Ignoring a car dent can lead to rust, paint damage, and costly repairs over time. Protect your vehicle's value and appearance with timely dent repair.
A black car with illuminated rear lights parked indoors beside another black car on a wet shop floor
October 13, 2026
Car bumper damage can result from collisions, parking accidents, and harsh weather. Learn the common causes and when you need professional repairs.
A person wearing a respirator spraying paint on a masked vehicle inside a work bay with tools mounte
By River North Collision Repair • September 24, 2026
Can a body shop match original factory paint? Find out how professional paint matching and blending help create a smooth, consistent vehicle finish.
A woman wearing sunglasses and a patterned scarf leaning against a black car inside an auto service
By River North Collision Repair • September 17, 2026
Spot common signs of pothole damage, from tire problems to dents, vibrations, and uneven wear. Know when your car may need professional repairs.
A black SUV with open doors parked inside an auto service bay with hoses, bins, other cars, and over
September 15, 2026
Looking to repair or replace your car? Before deciding which option works for you, consider repair costs, your vehicle's value, the damage, and safety.
A person wearing gloves using a polisher on a gray car panel with yellow tape along the window edges
September 3, 2026
Car paint damage from accidents, vandalism, or weather may qualify for insurance coverage. Learn what factors can affect your claim and repair costs.
August 27, 2026
Foggy headlights can reduce visibility and affect your vehicle’s appearance. Find out what causes cloudy lenses and how professional repair can restore clarity.
Auto Body Shop vs Dealership: Cost, Quality, and Time
August 25, 2026
Compare an auto body shop vs. a dealership for cost, repair quality, and turnaround time to choose the right collision repair option for your vehicle.