PSI Texas State Board Nail Tech Practice Exam

The strength of an acrylic overlay primarily comes from the apex. The apex is the high point or the center portion of the nail enhancement, and it plays a critical role in providing structural integrity and balance to the overall design. A well-formed apex helps to distribute stress evenly across the surface of the nail, which is essential for preventing breakage and ensuring durability.

Constructing the apex correctly is crucial when applying acrylics, as it helps to create a strong arch that withstands daily wear and tear. This area typically requires careful attention to thickness and shape, as it not only impacts the visual aesthetics but also the functional strength of the overlay.

In contrast, the cuticle area is primarily a growth area for the nail, the nail bed serves as the foundation but does not provide the structural support needed for overlays, and the nail tip is the extension of the natural nail and does not contribute significantly to the strength of the overlay itself. The apex's strategic placement in the structure of the acrylic overlay is what allows it to maintain its shape and support the nail's functionality effectively.