Thick or Thin Sealcoating Layers?

Thick or Thin Sealcoating Layers?

Thick or Thin Sealcoating Layers?

If your property has an asphalt driveway or parking lot, you have likely heard about the importance of sealcoating. This affordable form of preventative maintenance can help you extend the life of your pavement and keep paved surfaces looking rich in color and extremely attractive.

Commercial and residential property owners with asphalt surfaces on their property will often utilize contractors to do the sealcoating work. It is usually a popular request from people unfamiliar with sealcoating and asphalt preservation to ask a contractor to layer the sealant thickly. Any reputable paving contractor will never do a sealcoating job like this. A sealcoat should never be implemented in a single thick layer but rather in two or more thin layers to get the highest quality, longest-lasting results. Experts offer these reasons why:

Why thin coating is better

To understand why it's crucial not to apply a sealcoat too thick during installation, you need to know how sealants work. Sealcoating in San Andres, CA, is used in a liquid form that creates a rigid and protective shell that preserves the surface of your pavement when it dries. Because the seal starts in a liquid form, the drying process demands moisture evaporation for the sealant to cure and form that protective shell properly. When the sealcoat is applied too thick, evaporation will not occur evenly or adequately. Meaning, the moisture could remain in the sealant and inhibit the formation of the hard protective shell.

A thicker layer of sealant takes longer to dry and causes more uneven curing, which means that the sealant will not bond properly with the pavement and will degrade quickly, starting to flake or crack almost immediately after you begin allowing traffic in the area. This damage results in the lack of protection from sealcoating for your pavement and also means that you just threw away the money you allocated to have the job done. Finally, professionals must install the sealant so that the hard shell can form on the exterior of the asphalt surface. This hard shell protects the pavement from gas and oil spills and other chemicals and substances that could wind up on top of it or be applied to it like deicing agents. It also protects against snow, sun, rain, ice, and other elements, helping to limit tire and power steering marks.

Without developing the hard protective shell, sealcoating is essentially ineffective, providing little more than aesthetic enhancement. And even that aesthetic improvement doesn't last for long because the sealant will only come unattached as soon as vehicles start driving on it. This makes it essential to follow the manufacturer's instructions when applying sealant or work with a professional who recognizes that you must use it in multiple thin layers for the best results.

Contact M. Carroll Blacktop Services if you need sealcoating in San Andres, CA. Our experience and professional expertise can give you the confidence to know that you made the right choice for your paving needs. Call us today for your free estimate.

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