Crack Filling vs. Sealcoating — What Fixes What?
If your driveway or parking lot is looking rough, you might be wondering—do I need crack filling, sealcoating, or both? These two services work together, but they serve very different purposes. Knowing the difference helps protect your pavement and avoid wasting money.
What Is Crack Filling?
Crack filling is the process of using asphalt crack filler to repair individual cracks in your pavement. It's designed to stop water from getting into the base layer and causing major damage.
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Best for: Cracks over 1/4 inch wide
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Products used: Hot pour rubber crack sealer or cold pour crack filler
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Tools: Crack filling machine, pour pots, or melter applicators
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Results: Extends pavement life by preventing water damage and potholes
If you’re seeing weeds, moisture, or deep gaps, you need crack repair before any sealing.
What Is Sealcoating?
Sealcoating is a protective layer applied over your entire asphalt surface. It doesn’t fix damage—it prevents it. Sealcoating protects against sun, oil, salt, water, and oxidation.
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Best for: Fresh or well-maintained pavement
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Products used: Asphalt sealer (coal tar or emulsion)
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Tools: Sealcoat sprayer, squeegee, or brush
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Results: Enhances appearance, protects against future damage
People often search “asphalt sealing near me” or “driveway sealing near me” expecting it will fix cracks—but if you don’t repair first, sealcoat alone won’t help.
Do You Need Both?
Yes—if your surface has cracks and needs sealing.
Always fill cracks first, then sealcoat over the top for full protection.
At Asphalt Sealcoating Supply Inc, we carry everything you need for both:
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Crack filling machines
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Rubber and cold-pour crack sealers
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Sealcoating sprayers
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Asphalt repair tools
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Best driveway crack filler and sealers
Whether you're fixing a few cracks or prepping for a full driveway sealing project, we’ve got your back.