Chemistry & ProductsQuestion 85 of 100
While applying nail tips you squeeze a large drop of adhesive onto each tip so it will 'hold longer.' What actually happens?
a.Tip and wrap adhesive is a cyanoacrylate that bonds best in a thin layer; too much floods out onto the skin, traps air pockets, sets slowly and unevenly, and the tip lifts or pops off.
b.A thicker layer of cyanoacrylate always creates a stronger, longer-lasting bond than a thin one.
c.The extra adhesive acts as a primer, so no other nail preparation is needed.
d.Cyanoacrylate only sets under a UV lamp, so how much you use makes no difference.
Explanation
Cyanoacrylate adhesive cures fastest and strongest as a thin film between two close-fitting surfaces, so a thin even layer is what holds a tip on. A heavy drop squeezes out onto the skin, leaves air bubbles under the tip and cures unevenly, which is a common cause of lifting and popped-off tips. Adhesive is not a primer and does not replace prep, and cyanoacrylate cures chemically — often with an activator — not under a lamp.
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