The Oshkosh Sealcoating Blog
Oshkosh asphalt lives a hard life. The city sits on the clay floor of a glacial lake, the ground freezes to 18 inches by late December on average, the pavement crosses 32 degrees F dozens of times a winter, and Winnebago County spreads thousands of tons of salt and a million gallons of brine on the roads that feed every driveway and lot. The working season for sealer is five months. These posts explain how those facts should shape what you do with a driveway or a lot, and when.
Every post here is written for a homeowner in Oshkosh, Neenah, Menasha, Omro or Fond du Lac, or for a property manager with a lot to keep open, and every number in it traces to a public source: NOAA climate normals, WisDOT frozen-road and winter maintenance data, USDA soil surveys, the 2010 ADA Standards and the City of Oshkosh's own policies. Nothing here is a sales pitch for a coating. It is the reasoning behind a good written scope.
September 9, 2026
When Is the Best Time to Sealcoat a Driveway in Oshkosh?
The window is set by pavement temperature, dry days and the first fall freeze, and in Winnebago County that adds up to about five dependable months.
September 9, 2026
Why Do Oshkosh Driveways Crack and Crumble So Fast?
Three local forces work on every unsealed driveway in Winnebago County: dozens of freeze-thaw days each winter, glacial lake clay under the base, and months of salt and brine.
September 9, 2026
Coal Tar or Asphalt Emulsion Sealer: Which Should an Oshkosh Driveway Get?
The two sealers go down the same way and cure by the same rules, but they differ sharply in what they leave behind in the water, and the map of where coal tar is banned keeps growing.
September 9, 2026
How Should a Property Manager Plan Parking Lot Sealcoating and Striping in Oshkosh?
A commercial lot in Winnebago County gets five months of working weather, one enormous July, and seven months of plows and brine, so the plan has to be written before the first quote.