All liquids change viscosity as a function of temperature—even water. As the temperature increases, the viscosity decreases. Conversely, when the temperature decreases, the viscosity increases.
The viscosity of an adhesive can range from 200 to 1.5 million centipoise (cps). However, that viscosity will vary, depending on the temperature. For example, one sealant’s viscosity drops steeply from more than 8,000 cps at 64°F to less than 4,000 cps at 78°F—a twofold decrease in viscosity in a span of just 14 degrees.