In our previous article, we took a close look at osmotic blistering and the toll it takes on coated surfaces. In this article, we’ll examine the other common mechanism of coating failure: non-osmotic bubbling.
Beyond Moisture Damage
As we previously explained, osmotic blistering arises from situations in which coated surfaces are immersed in water or subject to continual high humidity. Water, sometimes driven by temperature gradients, gets under the coating surface, vaporizes and causes the damage we call osmotic blistering. On the other hand, coating damage from causes other than osmotic blistering we call bubbling, though the results of the two are similar.