This set of temperature-signaling lacquers permanently change colors after 5 minutes of continuous exposure to high temperatures.* Each of the 3 paints is calibrated to change color at one temperature. The single color change makes the paints easy to read with no guesswork.
Paint 1 starts off Green and changes to white at 478° C (892° F)
Paint 2 starts off Orange and changes to yellow at 571° C (1060° F)
Paint 3 starts off Red and changes to white at 640° C (1184° F)
These temperatures have been chosen specifically for use on racecar brakes, to determine whether the operating temperature is correct for the chosen pad compound. Kit includes one bottle of each color/temperature, one bottle of thinner, and three brushes.
These paints are formulated with a high solids content in order to dry quickly when applied. The solids can settle out of the solution after sitting for long periods. If this happens, simply re-mix the paint, adding a small amount of the supplied thinner if necessary.
* Slightly lower temperatures can also cause these color changes with longer exposure times. Increasing the exposure time from 5 minutes to 30 minutes will lower the temperature required by approximately 10%. A set of charts showing exposure times and temperatures is provided in the kit.
All three paints are essentially inert below 180° C / 356° F (Paint 2 and Paint 3 are inert up to 425° C / 800° F) so they can be applied to parts well in advance of use.