I'm trying to finish a small piece with brushing lacquer, which I have not used before. The can says that I should not apply it if the temperature is below 55F (13C). The temperature in my area has hovered around 45-50F for weeks now, and this simple project is stuck in limbo. I'm working in an unheated garage, and I'm afraid of starting a fire if I bring in a space heater. How strictly should I follow this rule? I'm getting very impatient.