NIC Nail Technician Written ExamNail Technology ProceduresEasy
A technician is performing a full set of sculptured gel nails. After applying the first layer of builder gel and curing it, they notice a sticky, uncured layer on the surface. What is this layer called, and what is its purpose?
- AThe tacky layer; it needs to be removed immediately for proper adhesion.
- BThe dispersion layer; it indicates insufficient curing.
- CThe inhibition layer; it helps subsequent layers adhere.
- DThe top coat; it provides shine and protection.
Show answer & explanationAnswer & explanation
Correct answer: C. The inhibition layer; it helps subsequent layers adhere.
The sticky, uncured layer on the surface of cured gel is known as the inhibition layer or dispersion layer. It is a normal byproduct of the polymerization process when gel cures in the presence of oxygen. This layer is crucial as it provides a tacky surface for subsequent layers of gel to adhere to, ensuring strong bonding.
Why the other options are wrong
- A. Removing it immediately would hinder adhesion of the next layer, making the enhancement prone to lifting.
- B. While it is a 'dispersion layer,' its presence does not indicate insufficient curing; it's a normal part of the process for most gels.
- D. The top coat is applied as the final layer for shine and protection, not after the first builder gel layer.
Gel Inhibition Layer
The sticky, uncured surface layer left on UV/LED gel after curing, caused by oxygen inhibiting polymerization at the surface. It is essential for adhesion of subsequent gel layers.
- Sticky residue on cured gel
- Normal byproduct of curing
- Aids adhesion of next layers
Memory trick: Sticky gel helps future layers 'stick' together, that's the inhibition layer's powerful tether!