Can't Find the Answer? Ask Us HERE!

In What Temperatures Can I Apply RustSeal?

RustSeal has been thoroughly tested and can be applied when the air and surface temperatures are between 55°F–82°F and relative humidity is between 30–80 RH.

RustSeal Application Requirements at a Glance

Temperature (air & surface): 55°F – 82°F  |  Relative Humidity: 30 – 80 RH

Keep the following in mind when planning your application:

  • The surface temperature is typically lower than the air temperature. Make sure both surface and air temperatures are within the 55–82°F range before you begin.
  • If the temperature is too high, the solvents in RustSeal can evaporate too quickly, causing a less-than-ideal finish and possible adhesion issues.
  • If the humidity is below 30 RH, RustSeal may take much longer to cure, which can result in a less-than-ideal finish.
  • If the humidity is above 80 RH, RustSeal may cure too quickly, causing a less-than-ideal finish and possible adhesion issues.
  • When conditions are outside the ideal range, always wait to apply until both temperature and humidity are within range.
    • If temperature or humidity is too low, allow extra cure time beyond what the RustSeal Directions state.
  • Always allow RustSeal to reach 55–82°F before application.
  • RustSeal can be shipped or stored in below-freezing temperatures with absolutely no effect on the product. Always allow it to return to 55–82°F before applying.

Ready to start your RustSeal project?

Review the complete Application Directions before you begin, or reach out to our team with any questions about your specific project conditions.

Shop RustSeal    View Application Directions    Ask a Question