Alligatoring refers to a type of surface cracking or checking that resembles the texture of an alligator's skin. It is commonly observed on exterior painted surfaces, such as wood, metal, or stucco, and occurs due to various factors such as age, weathering, poor paint application, or incompatible paint layers.
The term "alligatoring" is derived from the resemblance of the cracked surface to the scaly appearance of an alligator's skin. The cracks typically display a series of intersecting lines that create a pattern resembling the alligator's hide. It is often characterized by a network of deep crevices or wide cracks, which may expose the underlying layer or substrate.
Alligatoring typically occurs when an inflexible topcoat or paint layer is applied over a more flexible underlying layer, causing differential movements between the layers. Over time, temperature fluctuations and weathering can lead to the expansion and contraction of the different layers, resulting in stress and cracking. Additionally, repeated applications of paint without proper surface preparation, such as cleaning, priming, or removing old paint, may contribute to the problem.
To resolve alligatoring, the affected surface usually requires thorough cleaning, removal of loose or damaged paint layers, and sanding to smooth the surface. Proper surface preparation, priming, and the use of compatible and flexible paint systems can help prevent alligatoring from occurring in the future.
In summary, alligatoring refers to the formation of deep, intersecting cracks resembling an alligator's skin on painted surfaces, caused by aging, weathering, improper paint application, or incompatible paint layers.
