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SKU: ND054-Epoxy

1 x 1/8 inch Rare Earth Neodymium Disc Magnets Epoxy-Cu-Ni

$ 3.29
$ 3.29

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1" x 1/8" N42 Epoxy-Coated Neodymium Disc Magnets – Strong Rare Earth Magnets

Quick Facts

Attribute Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N42
Shape Disc
Diameter 1" (25.4 mm)
Thickness 1/8" (0.125" / 3.18 mm)
Pull Force Approximately 14 lbs*
Material NdFeB (Neodymium-Iron-Boron)
Coating Epoxy + Copper + Nickel (3-Layer)
Magnetization Through Thickness
Br Max 13,200 Gauss
Certification ISO Certified

*Note: Actual pull force may vary depending on the application, contact surface, steel thickness, and mounting method. Testing in your specific application is recommended.

Quick Answers

Question Answer
How strong is this magnet? Approximately 14 lbs of pull force under ideal conditions.
What is this magnet made of? NdFeB (Neodymium-Iron-Boron) rare earth material.
Is N42 stronger than N35 magnets? Yes. N42 provides greater magnetic strength than N40, N38, and N35 magnets of the same size.
Can it be used outdoors? Yes. The Epoxy + Copper + Nickel coating provides enhanced corrosion resistance, making it well suited for humid or outdoor environments.
What is it commonly used for? Magnetic fixtures, woodworking, marine projects, product assemblies, displays, industrial applications, and DIY projects.

Product Overview

These 1" x 1/8" N42 Epoxy-Coated Neodymium Disc Magnets combine dependable magnetic performance with enhanced corrosion protection. The 1-inch diameter provides excellent surface contact for secure holding, while the 1/8-inch thickness offers a strong magnetic field in a compact, low-profile design.

Manufactured from premium N42 grade NdFeB (Neodymium-Iron-Boron), these magnets deliver reliable holding power for industrial, commercial, and everyday applications. The Epoxy + Copper + Nickel 3-layer coating provides superior resistance to moisture, corrosion, and harsh environments while offering excellent adhesion for bonding applications. These magnets are ideal for woodworking, magnetic fixtures, marine projects, product assemblies, displays, and custom DIY builds.

What Is a Neodymium Disc Magnet?

A neodymium disc magnet is a permanent magnet manufactured from NdFeB (Neodymium-Iron-Boron), the strongest commercially available magnetic material. Disc magnets offer exceptional magnetic performance in a compact, flat design, making them one of the most versatile magnet styles available.

This magnet is magnetized through its thickness, placing the north and south poles on the two flat circular faces. It is commonly used in manufacturing, woodworking, electronics, product assemblies, magnetic closures, fixtures, and custom engineering projects.

Neodymium magnets are also commonly known as Neo magnets, NdFeB magnets, NIB magnets, or super magnets.

How Strong Is This Magnet?

This 1" x 1/8" N42 disc magnet provides approximately 14 pounds of pull force under ideal laboratory conditions using a thick, clean steel surface.

Actual holding force depends on several factors, including:

  • Surface material
  • Steel thickness
  • Contact area
  • Air gap
  • Mounting method
  • Environmental conditions

For maximum holding performance, use this magnet against a clean, flat steel surface.

Note: Pull force values are estimates based on ideal laboratory conditions. Actual performance should always be verified for your intended application.

Technical Specifications

Specification Value
Magnet Type Neodymium Rare Earth Disc Magnet
Grade N42
Shape Disc
Diameter 1" (25.4 mm)
Thickness 1/8" (0.125" / 3.18 mm)
Material NdFeB (Neodymium-Iron-Boron)
Coating Epoxy + Copper + Nickel (3-Layer)
Magnetization Through Thickness
Pull Force Approximately 14 lbs*
Br Max 13,200 Gauss
Certification ISO Certified

Epoxy + Copper + Nickel 3-Layer Coating

Every magnet features an Epoxy + Copper + Nickel 3-layer coating for outstanding corrosion resistance and long-term durability.

Epoxy + Copper + Nickel 3-Layer vs. Single-Layer Epoxy

Single-layer epoxy coatings are generally the least durable option. They are thin, wear more quickly, and can be damaged by scratches that expose the magnet beneath.

The Epoxy + Copper + Nickel 3-layer coating offers:

  • Superior resistance to corrosion
  • Better resistance to chipping and cracking
  • Improved durability in humid environments
  • Longer service life than single-layer epoxy coatings
  • Enhanced protection against moisture and oxidation

Epoxy + Copper + Nickel vs. Nickel + Copper + Nickel

Both coatings provide excellent protection, but they are optimized for different environments:

Epoxy + Copper + Nickel (This Magnet)

  • Superior corrosion resistance
  • Excellent adhesion for bonding applications
  • Better performance in humid, marine, and corrosive environments
  • Ideal where additional environmental protection is required

Nickel + Copper + Nickel

  • Excellent general-purpose durability
  • Smooth, polished metallic finish
  • Very good corrosion resistance under normal indoor conditions
  • May be more susceptible to corrosion in saltwater or acidic environments

Magnet Grade Comparison

Grade Relative Strength Typical Applications
N35 Standard General-purpose magnets
N38 Moderate Consumer products
N40 High Industrial applications
N42 Higher Engineering, manufacturing, woodworking
N52 Maximum High-performance industrial applications

Disc Magnet Size Comparison

Size Typical Use
Small Crafts, sensors, lightweight projects
1" x 1/8" Magnetic fixtures, woodworking, displays, closures
Medium Product assemblies and industrial holding
Large Heavy-duty industrial mounting

Applications by Industry

Industry Common Uses
Manufacturing Fixtures, jigs, magnetic assemblies
Marine Corrosion-resistant magnetic mounting
Woodworking Hidden catches, cabinet doors, furniture
Electronics Product assemblies and components
Education STEM projects and demonstrations
DIY & Makers Home improvement, crafts, custom projects

Common Questions About This Magnet

What is the pull force?

This magnet provides approximately 14 pounds of pull force under ideal testing conditions.

Is N42 stronger than N35 magnets?

Yes. N42 delivers significantly greater magnetic strength and holding power than N35 magnets of the same dimensions.

Why choose the Epoxy + Copper + Nickel coating?

This coating offers enhanced corrosion resistance and excellent adhesion, making it a great choice for humid environments, outdoor projects, and applications where the magnet will be bonded to another surface.

Can this magnet rust?

The protective coating greatly reduces the risk of corrosion. However, if the coating becomes damaged and the magnet is exposed to moisture for extended periods, corrosion may eventually occur.

Can it be used outdoors?

Yes. The Epoxy + Copper + Nickel coating makes this magnet better suited for outdoor and high-humidity environments than standard nickel-plated magnets.

What direction is it magnetized?

This magnet is magnetized through its 1/8-inch thickness, with the north and south poles located on the two flat circular faces.

Do you offer bulk discounts?

Yes. Contact Super Magnet Store for wholesale pricing and volume discounts on large quantity orders.

Why Buy From Super Magnet Store?

  • Premium N42 NdFeB rare earth magnets
  • ISO-certified quality
  • Durable Epoxy + Copper + Nickel 3-layer coating
  • Enhanced corrosion resistance for demanding environments
  • Excellent adhesion for bonding applications
  • Consistent magnetic performance
  • Precision manufacturing for reliable results
  • Competitive wholesale pricing
  • Bulk discounts available
  • Trusted by manufacturers, engineers, educators, and DIY makers worldwide



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