Product Chemistry, Implements, and Equipment
Chemistry basics
Understand pH: below 7 is acidic, 7 is neutral, above 7 is alkaline. Nail products, disinfectants, and skin products depend on pH and concentration. Monomers, polymers, catalysts, initiators, and photoinitiators explain acrylic and gel curing. Solvents such as acetone and ethyl acetate dissolve product; they also dry skin. Surfactants lift soil. Preservatives protect water-based products. Read the Safety Data Sheet for hazards, storage, and first aid.
Implements and equipment
Classify implements as porous or nonporous, and clean and disinfect accordingly. Ultrasonic cleaners clean; they do not replace disinfection. Autoclaves sterilize and require monitoring. UV/LED lamps need clean bulbs and correct curing times. Foot spas need internal cleaning and disinfection. Inspect cords, plugs, and lamps for damage. Store chemicals closed, labeled, and away from heat.
Traps
Questions imply natural means safe, or that mixing products makes them stronger. Never mix bleach with ammonia or acids. Do not use a disinfectant beyond its label dilution or contact time. Do not assume a pretty container is appropriate for chemicals.
Rule of thumb: clean first, then disinfect at the label contact time.
Worked example: a tool is run through an ultrasonic cleaner only. That is cleaning, not disinfection; disinfect afterward.