Nail Polish Brush Explained – Types, Uses, and How to Choose the Right One

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Main contents

1. Structure of a Nail Polish Brush

A typical nail polish brush is composed of two main parts:

  • Handle/Stem – the plastic connector fixed inside the cap.

  • Brush Head (Bristles) – hundreds of ultra-fine filaments (0.05–0.1mm) planted together, designed to deliver smooth polish application.

To ensure even coverage, bristles must feature:

  • Excellent straightness

  • Consistent diameter

  • Elastic recovery and “snap”

  • Proper softness and hardness balance

2. How Brush Size and Gaps Ensure Product Quality

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Brush Size & Bottle Matching

  • Brush size specification (e.g., 96×47–1.5, 9.6 mm) is designed to fit different screw necks.

  • 13 mm screw neck → matches with 9.6 mm brush plug.

  • 15 mm screw neck → matches with 11 mm brush plug.

Gap 1: Bottle Neck & Cap

  • Located between the glass bottle and cap.

  • If no gap exists, the cap cannot be tightened properly → leading to poor sealing.

Gap 2: Bottle Bottom & Brush End

  • Located between the glass bottom and brush tip.

  • If no gap exists, the brush tip will touch the bottom → causing bending or deformation.

Our Guarantee

Our factory carefully calculates these dimensions to:

  • Ensure tight sealing of every bottle.

  • Maintain brush alignment without deformation.

  • Deliver stable, high-quality packaging for your nail polish products.

3.Materials

  • Nylon (e.g., Nylon 612, DuPont Tynex®) – most common, with elasticity, solvent resistance, and durability.

  • Polyester (PBT) – improved resistance to chemical corrosion, softer feel.

  • Plastic Stem (PP/PE/PETG) – lightweight and resistant to acetates and nitrocellulose in nail polish.

  • Solvent-Resistant Glue – secures the bristles firmly without dissolving in polish.

4. Professional Brush Styles Showcase – Customizable Options

KB-001

General Flat Brush

KB-002

General Arc Brush

KB-003

Double-Head Wide Arc Brush

KB-004

Black Handle Flat Brush

KB-005

General White Flat Brush

KB-006

General White Arc Brush

KB-007

Handmade White Angled Brush

KB-008

Handmade White Arc Brush

KB-009

Handmade Gray Arc Brush

KB-010

Handmade Brown Arc Brush

KB-011

Handmade Yellow Arc Brush

KB-012

Handmade Gray Flat Brush

KB-013

White Striping Brush

KB-014

Yellow Eyelash Brush

KB-015

Black Handle Yellow Brush

KB-016

Handmade Yellow Flat Brush

KB-017

White Lip Gloss Brush

KB-018

White Handle Lip Gloss Brush

KB-019

White Heart-Shaped Lip Gloss Brush

KB-020

Round Handle Long Flat Brush

5.More tips about brush

5.1 Hard vs. Soft Brushes

Brushes can be divided into:

  • Soft Bristles – flexible, suitable for wide, smooth coverage; ideal for beginners.

  • Hard Bristles – offer more control and precision; preferred for professional use or detailed nail art.

5.2 The “Waking” of Brushes

Before use, brushes should be “woken up,” meaning thoroughly soaked in nail polish liquid.

  • If the brush is always immersed inside the bottle, it naturally stays conditioned.

  • If not properly soaked, bristles may bubble, split, or lose smoothness during application.

6. Performance in Application

A good nail polish brush should:

  • Hold polish evenly without dripping

  • Spread polish smoothly without bubbles

  • Maintain bristle alignment after multiple uses

  • Balance softness and stiffness for both beginners and professionals