What bead ratio means
When you dip an acrylic brush into liquid monomer and then into powder, the amount of monomer carried by the brush relative to the powder it picks up determines the "ratio" of your bead. A wetter bead has more monomer relative to powder; a drier bead has less.
This ratio affects: how easy the bead is to work with, how long it remains workable, the finished surface quality, the clarity of the cured product, and ultimately the strength and longevity of the nail.
Wet, medium, and dry beads
| Bead type | Appearance | Behaviour | Result when cured |
|---|---|---|---|
| Very wet | Shiny, almost liquid, spreads quickly when placed | Runs off the nail, hard to control, floods the cuticle | Can cure with pits; may be cloudy; can cause MMA-related issues if consistent over-saturation |
| Wet | Glossy dome, settles and flows when placed | Self-levels well; flows easily; good for self-levelling techniques | Can be slightly porous; more working time |
| Medium | Dome shape, slight gloss, holds shape but still moves when pressed | Workable; controllable; enough flow to self-level | Best strength and clarity when cured; recommended for most work |
| Dry | Matte dome, holds shape firmly, little movement | Hard to press flat; creates drag marks; rough surface | Porous, grainy surface; weaker due to insufficient monomer bonds |
How to pick up consistent beads
- Saturate the brush: Dip the brush tip into the monomer. The brush should be wet but not dripping — press the brush flat on the dappen dish edge to remove excess.
- Angle and press into powder: Hold the brush at roughly 45°, press into the surface of the powder, and turn slightly while pressing to pick up a bead. Don't scoop — press and roll.
- Let the bead form naturally: A correct bead forms as you lift the brush out of the powder — a dome shape sitting on the brush tip. Don't try to "make" a bead; the monomer picks up the powder and creates it.
- Check before placing: The bead should hold its shape for a few seconds on the brush. If it flows off the brush, it's too wet. If it looks matte and gritty, it's too dry.
Which ratio to use when
| Bead zone | Recommended consistency | Reason |
|---|---|---|
| Free edge / tip bead | Medium | Needs to hold shape at the tip rather than run off |
| Apex bead | Medium to slightly wet | Needs to flow enough to create a smooth surface while building height |
| Cuticle zone bead | Medium to slightly dry | Must not flow toward the cuticle; drier gives more control near the skin |
How ratio affects the finished nail
- Too wet: Monomer-heavy product can remain soft and porous after cure; the excess monomer may cause inhibited cure; increased risk of skin sensitisation over time due to uncured monomer
- Correct (medium): Full chemical reaction between monomer and polymer produces the strongest, clearest, most durable cured product
- Too dry: Powder-heavy product creates porosity (small air pockets) in the finished product; porous acrylic is weaker and absorbs staining products more easily
Product variation
Different acrylic systems have different designed working consistencies and different bead behaviour:
- Slow-set systems give more working time at a medium consistency — better for beginners
- Fast-set systems require confident placement as the working window is shorter
- Self-levelling systems are formulated to be slightly wetter and require less brush work
- Temperature affects working time — cold environments extend it; warm rooms speed it up
When learning a new product: practice bead pick-up and placement extensively before using it on clients. Bead ratio is intuitive once you know your specific product's behaviour — but it requires time with that specific system to develop. See: acrylic application step-by-step.
Ready to run your nail business more professionally?
Manage bookings, deposits and payments from one customisable Nelsy booking page.
Start free →Frequently asked questions
What does a correct acrylic bead look like?
A medium-consistency bead holds its dome shape when sitting on your brush but moves slightly when you press it — it's workable without running. A too-wet bead pools and spreads; a too-dry bead is lumpy and hard to press flat. With experience, the correct consistency becomes instinctive, but early on, pressing the bead gently against your wrist (without applying) to feel the resistance is a useful consistency check.
Why does my acrylic go lumpy?
Lumpy acrylic is usually a too-dry bead. The dry bead has insufficient monomer to bind the powder smoothly, creating a grainy or lumpy surface rather than a glossy, smooth bead. Add slightly more monomer to your ratio. It can also indicate your monomer is evaporating from the dappen dish — keep the dish covered between beads.
Does the bead ratio change between brands?
Yes — different acrylic systems have different ideal working consistencies based on their formulation. Some systems are designed to work wet, others drier. A ratio that works perfectly with one brand may be too wet or dry for another. When switching products, invest time in practicing with the new product before using it on clients.
