Filler repair putty is cured when mostly clear and no longer tacky. A heat lamp, incandescent bulb, or sunny window are typically needed to elevate the surface temperature to 120º – 145º F (49º – 63º C). Humid climates can slow cure time. Rub ‘n Restore finishes dry in minutes. When it feels dry, it is dry and ready for another coat or use. Cure time (when the color is unaffected by water) varies depending on temperature and humidity. For example, leather seats in a car parked in the Arizona summer sun will cure in a day. A boat in a humid climate may take weeks to cure but can still be used. Prevent water from pooling on any surface for extended periods of time. The worst that may occur is slight discoloration of the finish, and this often ‘dries down’. If it doesn’t, simply touch-up the color, and allow more time to cure before exposure to water.