05/06/2026
Here is what happens when you get a little too enthusiastic with the sealant:
1. Cracking and Peeling.
Sealant is designed to be a thin, flexible skin. When you layer it on year after year, it becomes thick and brittle. Eventually, the layers lose their ability to expand and contract with the temperature. This leads to hairline cracks or "alligatoring," where the sealant flakes off in chunks, looking like a dried-up lake bed.
2. Slippery Surfaces
Every layer of sealant fills in the natural texture of the asphalt. A driveway that has been sealed too many times becomes dangerously smooth. When it rains or frosts over, it can turn into an ice rink, making it a hazard for both your car and your feet.
3. Tracking and Scuffing
When the sealant is too thick, it doesn't cure properly all the way through. The top might feel dry, but the bottom remains soft. On a hot summer day, your tires can "pick up" the excess sealer, leaving unsightly tire marks or even tracking black goo into your garage and house.
4. Wasted Money
High-quality coal tar or asphalt emulsion sealants are meant to wear down naturally. If the previous coat hasn't worn away yet, the new coat won't bond correctly to the pavement. You’re essentially painting over paint, which is a recipe for a cosmetic mess and a lighter wallet.
When the asphalt looks grey it's time to seal.
The Golden Rule: Aim for every 3 to 5 years. If your driveway still looks deep black and smooth, you’re good to go for another season!
How long has it been since you last applied a coat, and are you seeing any of that "alligator" cracking