What is the Difference Between Epoxy Resin and UV Resin

The main difference between epoxy resin and UV Resin is that epoxy resin relies on a chemical reaction between resin and hardener and has a longer curing time, while UV resin cures rapidly when exposed to UV light.

In short, epoxy resin and UV resin are two distinct types of synthetic polymers widely utilized for various applications, from crafts to industrial uses.

Key Areas Covered

1. What is Epoxy Resin 
      – Definition, Features
2. What is UV Resin
      – Definition, Features
3. Similarities Between Epoxy Resin and UV Resin
      – Outline of Common Features
4. Difference Between Epoxy Resin and UV Resin
      – Comparison of Key Differences

Key Terms

Epoxy Resin, UV Resin, Ultraviolet Resin

Difference Between Epoxy Resin and UV Resin - Comparison Summary

What is Epoxy Resin

Epoxy resin is a type of thermosetting polymer that consists of two main components: the epoxy resin itself and a hardener. When these two components are combined in the proper proportions and undergo a chemical reaction, they form a crosslinked polymer structure. This cross-linking process, often referred to as curing, leads to the material’s impressive strength and durability.

Moreover, one of the defining characteristics of epoxy resin is its ability to transform from a liquid state to a solid state. This transformation occurs through an exothermic reaction, where heat is released as the material cures. This characteristic allows epoxy resin to be used for a wide range of applications, including casting, coating, bonding, laminating, and molding.

Epoxy Resin vs UV Resin

Epoxy resin is a versatile material widely used in the construction, aerospace, automotive, electronics, and art industries. It strengthens structures in construction and infrastructure, while its use in aerospace and automotive sectors results in lightweight, high-strength composites for improved efficiency. Epoxy resin’s insulating properties protect electronic components, ensuring longevity. It has revolutionized the art world by enabling intricate creations like paintings, sculptures, and jewelry. The material forms durable bonds across various surfaces, can be molded into versatile shapes, and offers chemical and environmental resistance. Once cured, epoxy resin remains transparent, enhancing artistic and functional possibilities.

What is UV Resin

UV resin, also known as ultraviolet resin, is a type of synthetic resin that cures rapidly when exposed to UV light. It is a versatile and popular material used for various crafts, jewelry making, coatings, and small-scale projects where quick curing and precise detailing are important.

UV resin is composed of a liquid polymer base that contains special photo-initiators. These photo-initiators are sensitive to UV light, and when exposed to UV rays, they initiate a polymerization reaction. This reaction causes the liquid resin to harden and solidify, transforming it from a liquid state to a solid, cured state. Unlike traditional epoxy resin, UV resin does not require a chemical reaction between multiple components; instead, it relies on the energy from UV light to trigger the curing process.

Compare Epoxy Resin and UV Resin

UV resin cures very quickly compared to other types of resins. UV resin’s quick curing time allows for precise detailing and layering. This makes it perfect for creating intricate jewelry pieces, miniatures, and other fine crafts that require high levels of detail. When properly cured, UV resin is known for its exceptional clarity and transparency. It can encapsulate objects or create a glass-like finish that showcases embedded materials, colors, and effects.

It is popular for creating resin jewelry such as pendants, earrings, rings, and charms due to its ability to quickly cure and capture intricate designs. UV resin also is favored by hobbyists and artists who create miniatures, dioramas, and scale models because of its fine detailing capabilities. It can be used to coat surfaces to create a glossy and protective layer, such as on keychains, coasters, and decorative items.

Similarities Between Epoxy Resin and UV Resin

  • Both epoxy resin and UV resin are types of synthetic polymers that start in liquid form and transform into solid, hardened materials through curing processes.
  • They are both designed to provide strength, durability, and a protective finish to various surfaces and objects.
  • Both resins are versatile and can be used for a wide range of applications, including crafting, jewelry making, coating, embedding, and more.
  • When properly cured, both epoxy resin and UV resin can exhibit exceptional transparency and clarity.
  • They provide artists and creators with the means to experiment with new techniques, create unique pieces, and bring their imaginative ideas to life.

Difference Between Epoxy Resin and UV Resin


Epoxy resin is a versatile thermosetting polymer that, when properly mixed and cured, forms a strong and durable bond. UV resin, on the other hand, is a type of resin that cures quickly when exposed to ultraviolet (UV) light.


The epoxy resin cures through a chemical reaction between the resin and the hardener, which takes several hours to complete. This reaction creates a cross-linked polymer structure. In contrast, UV resin cures rapidly when exposed to ultraviolet (UV) light. It contains photo-initiators that initiate a polymerization reaction upon exposure to UV light. Moreover, this quick curing process often occurs within minutes, depending on the intensity of the UV light source.


Moreover, epoxy resin is available in various viscosities, ranging from thin and liquid to thick and gel-like, while UV resin typically has a thinner consistency and is useful in smaller-scale projects that require intricate detailing, such as jewelry making and miniatures.


Epoxy resin typically requires minimal specialized equipment beyond measuring tools and mixing containers. UV resin requires a UV light source, such as a UV lamp or light box, for curing. The availability of suitable UV light is crucial for using UV resin effectively.


UV resin is not as strong or durable as epoxy resin.


In essence, the main difference between epoxy resin and UV resin is their curing mechanisms and the corresponding application characteristics. The epoxy resin cures through a chemical reaction between mixed components and is favored for its adhesive strength and durability, while UV resin cures rapidly under UV light and is prized for its clarity, quick curing time, and suitability for detailed artistic projects.


1. “Bisphenol A – An Overview.” Science Direct.
2. “The Ultimate Guide to UV Resin for Beginners.” Into Resin.

Image Courtesy:

1. “Epoxy” By Dzhang2680 – Own work (CC BY-SA 3.0) via Commons Wikimedia
2. “A Person Pouring Resin” (CC0) via Pexels

About the Author: Hasini A

Hasini is a graduate of Applied Science with a strong background in forestry, environmental science, chemistry, and management science. She is an amateur photographer with a keen interest in exploring the wonders of nature and science.

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