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SEAL COATING


Sealcoating, or pavement sealing, is the process of applying a protective coating to asphalt-based pavements to provide a layer of protection from the elements: water, oils, and U.V. damage. #Benefits.......Sealcoat or pavement sealer is a coating for asphalt-based pavements. Sealcoating is marketed as a protective coating that extends the life of asphalt pavements. There is not any independent research that proves these claims.

Sealcoating may also reduce the friction or anti-skid properties associated with the exposed aggregates in asphalt. #Detriments to Sealcoat........Not all pavement sealcoat are created equal. For example, refined tar-based sealer offers the best protecting against water penetration and chemical resistance.

Asphalt-based sealer typically offers poor protection against environmental chemical and harsher climates (salt water). Petroleum-based sealer offer protection against water and chemicals somewhere between the other two sealers. Another difference between coatings is in terms of wear. Again, refined tar-based sealer offers the best wear characteristics (typically 3–5 years) while asphalt-based sealer may last 1–3 years. Petroleum-based sealer falls between refined tar and asphalt.

There are concerns about pavement sealer polluting the environment after it is abraded from the surface of the pavement. Some states in North America have banned the use of coal tar–based sealants primarily based on United States Geological Survey studies. [1] The industry group that represents sealcoat manufacturers has performed numerous research and reviews of the USGS and have found it to be erroneous, biased (citation and white hat, to name a few) and too generalized in order to draw the conclusions that the United States Geological Survey claims. #Types.......There are primarily three types of pavement sealers. They are commonly known as refined tar-based (coal tar based), asphalt-based, and petroleum-based. All three have their advantages but are typically chosen by the contractors' preference unless otherwise specified. Application methods..........Prior to application the surface must be completely clean and dry using sweeping methods and/or blowers.

If the surface is not clean and dry, then poor adhesion will result. Pavement sealers are applied with either pressurized spray equipment, or self-propelled squeegee machines or by hand with a squeegee. Equipment must have continuous agitation to maintain consistency of the sealcoat mix. The process is typically a two-coat application which requires 24 to 48 hours of curing before vehicles can be allowed back on the surface. Once the surface is properly prepared, then properly mixed sealer will be applied at about 60 square feet per gallon per coat.



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Serving Texas & Oklahoma

           CD PAVING & SEAL COATING General Services
  • Tar & Chip Paving
  • Tar & Chip Seal
  • Asphalt Paving
  • Driveways
  • Parking Lots
  • Ranch/Farm Roads
  • Sub-Divisions
  • Gravel Driveways
  • Saw Cutting
  • Patching
  • Seal Coating
  • Oil Field Services
  • Grading/Excavating
  • Dirt Work
  •       Commercial, Residential, Municipalities, Subdivisions, HOA's


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