Acrylic (Liquid and Powder) Nail Enhancements
What this domain tests
Acrylic questions test chemistry, mix ratio, form fitting, structure, filing, and maintenance. Safety questions focus on MMA, primer, dust, and skin contact.
Core rules
- Acrylic uses a liquid monomer and powder polymer. EMA (ethyl methacrylate) is the standard monomer; MMA (methyl methacrylate) is banned or restricted in many jurisdictions because of severe reactions and nail damage.
- Mix a bead with the correct ratio: too wet causes shrinkage, lifting, and weak structure; too dry is brittle and cloudy. The bead should be smooth and workable, not runny.
- Prep the nail, apply primer only as the system directs and never on skin, fit a form that matches the free edge, and build apex, stress area, and thin sidewalls.
- Cure fully, file with controlled strokes, and check the seal at the cuticle and sidewalls. Fills are typically needed every 2–3 weeks.
- Control dust with ventilation and a vacuum; keep monomer covered; never touch skin with wet product.
Worked example
A set lifts within days at the cuticle. The likely cause is wet monomer touching skin or oil left on the plate, so product bonded to skin rather than nail. The correction is better dehydration, a drier bead, and a clean margin. Reasoning: lifting starts where adhesion is compromised, not where the product is thickest.
Traps that cost marks
- “More powder makes it stronger.”
- Skipping primer or using it on skin.
- Using MMA because it sets slowly.
- Over-filing the natural nail during prep or fill.