How does the porosity of concrete affect paint adhesion on outdoor sofas?
The porosity of concrete plays a critical role in paint adhesion, especially for outdoor sofas exposed to weather conditions. Highly porous concrete absorbs paint unevenly, leading to poor adhesion, flaking, and premature wear. To ensure long-lasting results, proper surface preparation—such as sealing or priming—is essential. Low-porosity concrete, on the other hand, may resist paint penetration, requiring etching or sanding for better bonding. Understanding these factors helps achieve a durable, aesthetically pleasing finish for outdoor concrete furniture.
