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What is a three-piece gel nail polish set?

Release time:

2026-04-18 07:12

What is a three-piece gel nail polish set?

In the nail industry, you often hear the term “the three-piece gel polish set.” For those new to nail art, it may not be clear what these three items actually are or what roles they play. The three-piece gel polish set is a standard foundational product combination used in UV gel nail applications, consisting of a base coat, a color coat, and a top coat—each with distinct functions. These three layers are applied in a specific sequence to create a complete gel nail coating system.

I. Composition of the Three-Piece Set

A three-piece gel nail polish set consists of a base coat, a color coat, and a top coat.

The base coat is the first layer applied to the natural nail surface; it is typically transparent or semi-transparent and has a relatively thin consistency. Its main ingredients include a base resin and adhesion-promoting monomers, which, upon UV curing, form a durable base film that bonds firmly to the nail. The base coat serves as the bridge that connects the natural nail to the subsequent coating layers.

Color gel is the second layer applied over the base coat and serves as the primary medium for delivering color. It contains pigments or color pastes, offering a wide range of color options. The texture of color gel is slightly thicker than that of the base coat, and one to three layers are typically required to achieve the desired color saturation and opacity. As the core component of nail art decoration, color gel determines the final color and overall effect of the manicure.

The topcoat is an outer layer applied over the color gel; it is transparent in color and slightly thicker in texture than the color gel. Its main component is a highly transparent resin, which, upon UV curing, forms a high-gloss, high-hardness protective film. The topcoat serves to seal the color gel, enhance gloss, and extend its durability.

II. The Function of the Primer

Base coat plays a fundamental role in the entire nail enhancement system. Its primary function is to provide adhesion. The natural nail surface is smooth and oily, making it difficult for color gel to adhere firmly when applied directly. Base coat contains adhesion-promoting monomers that form chemical bonds and mechanical interlocking with the nail surface, thereby establishing a stable adhesive foundation for subsequent layers. In addition, base coat offers protective benefits for the nail. After curing, it forms a dense protective film that isolates the pigments in the color gel from direct contact with the nail, reducing the risk of pigment staining and discoloration. Once applied and cured under UV light, the base coat develops a tacky surface layer that enhances the adhesion of the color gel; therefore, there is no need to wipe the base coat surface before applying the color gel.

III. The Function of Color Gel

Color gel is the core component of nail art decoration, determining the color and overall effect. Its primary function is to deliver vibrant hues. By incorporating various pigments and types of color pastes, color gel can achieve a wide range of effects—from light to deep shades, from solid colors to glittery finishes, and from opaque to semi-transparent looks. Typically, two to three coats are required to attain optimal color saturation and coverage: the first coat serves as a thin base, while the second builds up the intensity; each layer must be cured under UV light. High-quality color gels, however, can provide even, full coverage with just a single coat.

IV. Functions of the Seal Coat

The top coat is the final layer in a nail art system, serving to seal and protect the design. Its primary function is to enhance shine; once cured, the top coat creates a smooth, even surface that reflects light uniformly, delivering a high-gloss, mirror-like finish—key to achieving a luminous, polished look. In addition, the top coat provides protective benefits: after curing, it forms a hard, durable film that covers the color gel, shielding it from everyday abrasion and chemical exposure and extending the longevity of the manicure. Depending on the application method, top coats are categorized as wipe-off or no-wipe types. Wipe-off top coats require the removal of the sticky residue with a cleaning solution after curing, whereas no-wipe top coats eliminate this step, making them more convenient to use.

V. Construction Sequence for the Three-Component Set

The application sequence for a three-piece gel polish set is fixed and must not be reversed or skipped.

Step 1: Apply the base coat. After cleaning the nail surface, evenly apply a thin layer of base coat, then cure it under the LED/UV lamp. Once the base coat is cured, a tacky layer will remain on the surface—no need to wipe it off.

Step 2: Apply the color gel. Spread the first layer of color gel evenly and thinly over the base coat, then cure under a lamp. Next, apply the second layer of color gel, again in a thin, even coat, and cure under a lamp. For greater color saturation, a third layer may be applied. After each layer of color gel is cured, a sticky surface layer remains; no wiping is required.

Step 3: Apply the sealing coat. Apply the sealing coat evenly over the color gel and cure it under a lamp. After the sealing coat has cured, use a cleaning solution to wipe away the adhesive layer; for no-wipe sealing coats, no wiping is required.

VI. Principles for the Coordinated Use of the Three-Piece Set

The primer, color gel, and top coat must be used as a matching set to achieve the best results.

Base coats, color gels, and topcoats from the same brand and series have undergone compatibility testing, with optimized adhesion between layers, curing consistency, and shrinkage rates, ensuring more reliable overall performance. Mixing products from different brands may result in insufficient adhesion, inadequate curing, or reduced gloss.

If you must mix products from different brands, it is recommended to use the same brand for the base coat and top coat, while color gels can be mixed and matched as needed. Before full application, we recommend conducting a small-scale test first to ensure there are no issues before proceeding with larger-area use.

VII. Conclusion

A three-piece gel polish set is a commonly used foundational product combination in UV nail art application, comprising a base coat, color gel, and top coat—each with distinct functions. The base coat provides adhesion and protects the natural nail; the color gel delivers pigmentation and decorative effects; and the top coat enhances shine and safeguards the coating. Understanding the composition and purpose of this three-piece set is essential for performing nail art correctly. In practice, it is recommended to prioritize using matching products from the same brand to ensure optimal adhesion between layers and a cohesive overall result.

Disclaimer: The above content has been compiled from public sources for reference only; if any infringement occurs, please contact us and we will address it promptly.

Boxing Recommended Products – UV Gel Nail Polish
Base coat
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-02H	Phosphate ester acrylate monomer	Enhances adhesion to substrates such as metal, glass, and plastic.
B-2016	Polyester acrylate	High molecular weight, excellent flexibility, strong adhesion, and low heat release
B-2018	Aliphatic polyurethane acrylate	Good adhesion, good flexibility, and water resistance.
Colored tape
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-151DM	Modified epoxy acrylate	Low halogen, yellowing resistance, excellent plating performance, and strong adhesion.
B-162	Epoxy acrylate	Fast curing, low odor, high gloss, and high fullness.
B-166A	Modified epoxy acrylate	Good flexibility and strong adhesion
B-166A-85	Modified epoxy acrylate	Good flexibility, excellent adhesion, contains 15% HEMA
B-166A-85P	Modified epoxy acrylate	Good flexibility, excellent adhesion, contains 15% HEMA
B-27	Active amine photosensitizing promoter	Low color number, benzene-free, low odor, antioxidant and anti-polymerization
B-296	Aliphatic polyurethane acrylate	Fast curing, chemical resistance, yellowing resistance, and impact resistance.
Extended glue
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-210D	Aliphatic polyurethane acrylate	Fast curing, low heat release, and excellent toughness.
T-2022D	Aliphatic polyurethane acrylate	Non-stick, low heat generation, strong adhesion, high hardness
Sealant glue
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-376	Aliphatic polyurethane acrylate	LED yellowing is minimal, and the nail polish formulation exhibits excellent stability.
B-412T-6	Aliphatic polyurethane acrylate	Good toughness, tin-free, and excellent stability of the nail polish formulation.
Matte Sealing Layer
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-328M	Aliphatic polyurethane acrylate	Low gloss, low viscosity, excellent wettability, and a pleasant hand feel.
B-328R	Aliphatic polyurethane acrylate	Low gloss, excellent matting, good wetting, and a fine, smooth, and silky hand feel.
B-329D	Aliphatic polyurethane acrylate	Low irritation, low viscosity, excellent wettability, and a pleasant feel.
One-step adhesive
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-315	Aliphatic polyurethane acrylate	Wear and chemical resistance, high hardness, toughness, and yellowing resistance.
A-grade film
Product Model/English Abbreviation	Product Name/Product Type	Product Features
B-113	Bisphenol A epoxy acrylate	High hardness, high gloss, high fullness, containing 20% TPGDA.
B-216	Aliphatic polyurethane acrylate	Fast curing, high build, and excellent toughness
B-268M	Aliphatic polyurethane acrylate	Good flexibility, good adhesion, good plating performance, and excellent hiding power.
B-619W	Aliphatic polyurethane acrylate	Fast curing, high hardness, good toughness, wear resistance, and chemical resistance.
Single Product Recommendation
Product Model/English Abbreviation	Product Name/Product Type	Product Features
BM1211 (HPMA)	Hydroxypropyl methacrylate	HEMA-free, high strength, low irritation, high adhesion

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