How many coats of Acrylic Primer can be applied for maximum whiteness and opacity?

Applying five coats of acrylic primer is optimal for achieving maximum whiteness and opacity. Each coat contributes to the thickness and density of the primer layer, enhancing the underlying surface's ability to reflect light and maintain color vibrancy in subsequent layers. Acrylic primer is designed to fill in surface imperfections and provide a stable foundation for paint adherence, and multiple coats ensure that any variations or uneven areas are effectively covered.

While fewer coats might provide some level of coverage, such as two or three, they may not achieve the same level of opacity and brightness as five coats would. Similarly, applying seven coats may not be necessary and could lead to diminishing returns, as the additional coats beyond five are unlikely to produce significantly greater effects on the whiteness or opacity due to the saturation point being reached. Thus, five coats represent a balanced approach for achieving the desired level of coverage without overcomplicating the application process.