If you’ve ever asked yourself, “Why is my tire turning brown?” chances are you’re experiencing tire bloom. Tire bloom is a common occurrence that looks like browning on your sidewall. It can catch first-time car owners off guard, but the good news is it’s usually harmless and fixable!
Our guide walks drivers through what tire bloom is, the main causes, how to clean it, and how to keep your tires looking black. Prevent browning tires with our steps!
Unsure if you have tire bloom or more serious damage? Bring it to Hooper’s Tire Outlet for a tire diagnostic.
What Is Tire Bloom? And What Causes It?
Tire bloom, also called tire browning, is a chemical reaction that occurs when an organic compound in your tire called antiozonant rises to the tire’s surface and reacts with the air, turning brown. Manufacturers add antiozonant to tires to slow rubber damage caused by ozone and prevent dry rot and cracking.
You can think of antiozonant and tire bloom as a built-in moisturizer for your tire! The compound ensures your tires last their full lifespan by creating a protective barrier that keeps your rubber flexible. Tire browning is a sign that the antiozonant is working.
Regardless of tire brand or age, all tires are susceptible to tire bloom, especially if the rubber is exposed to the elements and left unused for extended periods. If you’re not using your tires for over a month, consider storing them in airtight bags in a cool, dry place, like a basement.
Is My Brown Tire Blooming or Something Else?
Browning tires aren’t always the result of tire bloom—sometimes, it’s just dirt and debris! Other common causes of brown tires include:
Brake Rust – Rusty brakes release rust particles that can stick to the surface of your tire. These metallic particles are abrasive, causing micro-damage to the tire sidewall and trapping moisture. Brake rust both discolors your sidewall and can draw antiozonants to your tire’s surface, leading to tire bloom. Clean your tires and car regularly to prevent issues.
Road Dirt – If you’ve used a silicone-based tire dressing and immediately started driving, you’re probably flinging dirt onto the sticky dressing. Dirt and debris are brown but do not cause tire bloom. Just wash it off!
Mold Release – Tires are formed in lubricated molds that shape the rubber into the right dimensions. Sometimes, the lubricants on the mold may keep antiozonants on the tire surface, which causes browning tires in new products when exposed to air. Mold release is likely a minor contributor to tire blooming.
Are Browning Tires Safe to Drive on?
Yes, brown tires are safe to drive on, as long as the rubber isn’t cracked or dry-rotted! For newer or well-maintained tires, the bloom is just a sign the antiozonant is doing its job, fighting ozone damage. The brown film is purely cosmetic and doesn’t affect performance or safety.
However, tire bloom can disguise more serious issues if you’re not careful, such as deep cracks, dryness, and brittle rubber. These are signs of aging and indicate it’s time to get your tire checked out or replaced. Be sure to inspect your tires regularly or bring them to a tire shop for a professional opinion.
How to Clean Brown Tires in 4 Steps
Getting rid of tire bloom is easier than you think! You can restore brown tires by following our easy tire cleaning guide and applying a water-based tire dressing. If you’re short on time, this quick version will do:
Step 1: Use the Right Cleaner
Skip the dish soap which can dry out your tire rubber, and go with a tire-specific cleaner or degreaser instead. These are made to break down the brown film without damaging the rubber. We prefer Adam’s Tire & Rubber Cleaner, but any well-rated product will do.
Step 2: Scrub with a Tire Brush
A good stiff-bristled tire brush will help lift the browning off the sidewalls. Scrub in circular motions and don’t be afraid to apply a little elbow grease! You may have to wash your tire multiple times to fully remove the brown layer.
Step 3: Rinse and Dry
Rinse thoroughly with water and dry the tires with a microfiber towel. This helps remove any leftover grime. A low or medium-strength pressure washer is also ideal for tire bloom cleaning.
Step 4: Apply a Tire Dressing
Finish with a water-based tire dressing. This restores the deep black look and adds a protective barrier to keep blooming at bay. We like Adam’s Graphene Tire Dressing and Carpo Darkside, but any well-tested product will do. In general, we avoid petroleum-based products as they can potentially draw out your tire’s oils and make blooming worse over time.
Tips to Prevent Browning Tires
The best way to prevent tire bloom is through regular tire maintenance and driving. Remember, prolonged exposure to the elements (e.g., air, sunlight, water, fluctuating temperatures) and disuse can accelerate tire bloom or lead to dry rot.
Stop browning tires (or worse) by following these tips:
Drive your car – Regular driving allows your tire to follow its intended heating and cooling cycles and promotes even wear.
Wash your tires regularly – Even once a month can make a big difference!
Use a water-based protectant – It hydrates the rubber and reduces oxidation.
Park in the shade when possible – Less sun exposure means less ozone reaction.
Skip harsh chemicals – Some car washes use cleaners that strip rubber protectants, so be selective about your products.
Replace Brown Tires at Hooper’s Tire Outlet
Sometimes, even the best care can’t save a tire past its prime. If your tires are cracking, worn, or too far gone, don’t wait—safety should always come first.
At Hooper’s Tire Outlet, we’ll inspect your tires and help you decide whether to replace them. We carry top brands at outlet pricing, and our team can even help you find the right look if you’re going for that perfect curb appeal.
Find quality used tires at our Rochester or Syracuse, NY, locations! Hooper’s Tire Outlet has the largest selection of cheap tires in the Greater Rochester Area. Save on your next tires, today!