20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink
4.7Editor score
20 piece pack size
Compact 20mm dimensions
Efficient thermal conductivity
10 Best Copper Pad Shim Kit (October 2026) Expert Guide
Copper pad shim kits are essential tools for enthusiasts and professionals seeking to optimize thermal performance in various electronic devices. These kits provide precise spacing and heat transfer capabilities that are crucial for maintaining system stability under heavy loads.
We have carefully evaluated ten distinct products based on material quality, thickness variety, and compatibility with modern hardware components. Each option offers unique advantages depending on your specific cooling requirements and the size of the components you are working with.
Every selection in this list highlights key specifications and potential use cases to guide your purchasing decision effectively. Please note that product availability and pricing may fluctuate frequently, so verify current details before completing your order online.
Top 3 Picks for Best Copper Pad Shim Kit
Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit
4.6Editor score
100 pieces total count
12 different thickness options
Pure copper C1100 material
MECCANIXITY Heatsink Copper Sheet Shim
3.9Editor score
Pre applied adhesive tape
0.3mm uniform thickness
5 set package count
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Top 10 Best Copper Pad Shim Kit in 2026 Compared
The following table provides a side-by-side view of the key specifications for each product to help you quickly identify which kit meets your specific cooling needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Easycargo 100pcs 15mm Kit
100 pieces total
12 thickness levels
15mm x 15mm size
Copper C1100 material
4.6Editor score
Editor's Choice
Easycargo 40pcs 20mm Kit
40 pieces total
6 thickness levels
20mm x 20mm size
Pure copper material
4.6Editor score
Best Premium
20 x 20 x 1.2mm IC Chipset
20 pieces pack
1.2mm thickness
20mm x 20mm size
IC Chipset cooling
4.7Editor score
Copper Thermal Shim Kit 55pcs
55 pieces total
11 thickness levels
15mm x 15mm size
Polished copper finish
4.5Editor score
Easycargo 4pcs 40mm Kit
4 pieces pack
0.5mm thickness
40mm x 40mm size
High performance copper
4.5Editor score
MECCANIXITY Heatsink Copper Sheet
5 sets included
0.3mm thickness
20mm x 20mm size
Adhesive tape backing
3.9Editor score
Easycargo 20pcs with 3M Tape
20 pieces total
0.5mm thickness
15mm x 15mm size
3M 8810 tape
4.3Editor score
PATIKIL Copper Heatsink Pad Shims
12 pieces pack
0.3mm thickness
15mm x 15mm size
Smooth bright surface
4.8Editor score
Leviton Copper Shims
10 per pack
16/18 series
Commercial grade
Cam-type connector
4.8Editor score
M METERXITY 3-Set Copper Shim Strip
3 sets included
6 inch length
Variable thickness
DIY craft suitable
4.7Editor score
1. Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit – Best Overall Copper Pad Shim Kit
Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit
100 pieces total
12 thickness options
15mm x 15mm size
Copper C1100 material
This kit stands out as the most comprehensive option for thermal management with its hundred pieces of pure copper shims. It holds a high rating from users who value the detailed thickness options for custom cooling solutions.
Pros
- Extensive thickness variety
- High thermal conductivity
- Versatile component compatibility
- Quality copper material
- Good value for quantity
Cons
- No adhesive included
- Requires precise cutting
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The pure copper C1100 material ensures excellent thermal conductivity at 401W/mK which is critical for transferring heat away from sensitive components like GPUs and CPUs. The variety of thicknesses allows for precise gap filling in complex cooling setups.
While it does not include adhesive tape you may need to source that separately which could be seen as a minor inconvenience. However the quality of the copper and the sheer number of pieces make up for this trade-off effectively.
Anyone looking to upgrade cooling for laptops desktops or gaming consoles will find this kit highly valuable for custom thermal modifications and repairs.
Precise Thickness Control
The inclusion of twelve different thicknesses ranging from 0.1mm to 2mm allows for exact gap adjustments in tight thermal environments.
Material Quality
Constructed from pure copper C1100 this kit delivers superior heat dissipation performance compared to standard aluminum alternatives.
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2. Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim Thermal Assortment Kit – Great Mid-Range Option
Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim Thermal Assortment Kit
40 pieces total
6 thickness levels
20mm x 20mm size
Pure copper material
This assortment kit offers a solid balance between quantity and size with its forty pieces of twenty millimeter shims. Users appreciate the straightforward selection of thicknesses that cover common thermal gap requirements.
Pros
- Compact 20mm size
- Good thickness selection
- High thermal performance
- Affordable price point
Cons
- Fewer pieces than top pick
- Limited thickness range
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The material remains high quality pure copper C1100 ensuring that heat is moved efficiently from hot components to the heatsink. The 20mm size is particularly useful for larger chips where space allows for broader coverage.
Compared to the larger kit it has fewer pieces which might limit large scale projects but is sufficient for most individual component cooling tasks. The reduced thickness range also means less flexibility for very specific narrow gaps.
It is an excellent choice for hobbyists who need a reliable set of thermal shims for occasional upgrades without overbuying on quantity.
Standardized Dimensions
The consistent 20mm x 20mm dimension simplifies selection when working with standard sized electronic components and PCBs.
Thermal Performance
Pure copper construction ensures minimal thermal resistance allowing for effective heat transfer in high performance computing environments.
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3. 20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink – Best Value Pack
20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink
20 pieces pack
1.2mm thickness
20mm x 20mm size
IC Chipset cooling
This specific pack focuses on a single common thickness which simplifies the choice for those needing consistent thermal pads across multiple components. It has earned a strong rating from users who value reliability and simplicity.
Pros
- High user rating
- Perfect fit for tight spaces
- Easy installation
- Budget friendly
Cons
- Fixed thickness only
- No adhesive tape
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The compact 20mm x 20mm size is specifically designed to fit into tight spaces where larger shims would not work. The 1.2mm thickness is a popular standard for many consumer electronics cooling applications.
The main limitation is the lack of thickness variety meaning you must be certain about the gap you need to fill before purchasing. However for targeted repairs or standard upgrades this offers a great cost effective solution.
If you know your thermal gap requirements this pack provides a straightforward and reliable way to enhance heat dissipation without extra complexity.
Targeted Cooling
Designed specifically for IC chipsets and GPUs this kit addresses common overheating points in modern electronics effectively.
Simple Application
The ready to use design means no complex modifications are needed to get immediate thermal performance improvements.
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4. Copper Thermal Shim Kit – 55pcs, 11 Thicknesses (0.1–2.0mm), 15x15mm Heat Spreader Pads for GPU CPU Laptop Cooling – Diverse Thickness Selection
Copper Thermal Shim Kit – 55pcs, 11 Thicknesses (0.1–2.0mm), 15x15mm Heat Spreader Pads for GPU CPU Laptop Cooling
55 pieces total
11 thickness levels
15mm x 15mm size
Polished copper finish
This kit offers a wide range of eleven different thicknesses which makes it highly versatile for various cooling scenarios. Users appreciate the polished finish that ensures good contact with heatsinks.
Pros
- Wide thickness range
- Universal compatibility
- High quality polish
- Good piece count
Cons
- Installation requires paste
- Sizing may vary
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The universal compatibility allows it to be used on GPUs CPUs and gaming consoles alike. The 15mm size is ideal for smaller components where precision is more important than surface area.
Installation requires applying thermal paste which adds a small step to the process but is necessary for optimal thermal transfer. The lack of adhesive may be a consideration for those seeking a quick fix.
It is a strong contender for anyone needing flexibility in thickness without spending too much on a larger more expensive kit.
Precision Thickness
With eleven distinct thickness options users can dial in the exact gap needed for efficient heat transfer in tight spaces.
Polished Finish
The polished copper surface minimizes air gaps when paired with thermal paste ensuring better conductivity.
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5. Easycargo 4pcs 40mm Copper Pad Shim Thermal Kit – Best for Large Components
Easycargo 4pcs 40mm Copper Pad Shim Thermal Kit
4 pieces pack
0.5mm thickness
40mm x 40mm size
High performance copper
This kit is designed for larger thermal applications where standard 15mm or 20mm shims would not cover the necessary area. It is particularly noted for compatibility with 3D printers and older gaming consoles.
Pros
- Large 40mm size
- High thermal conductivity
- Specific use cases
- Sturdy material
Cons
- Small pack count
- Specific thickness
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The 40mm x 40mm size provides substantial surface area for heat dissipation which is essential for high power modules like Peltier elements. The copper material ensures efficient transfer of heat away from the source.
Since it only includes four pieces and one thickness it is best used when you know exactly what is needed rather than for general experimentation. The higher unit price reflects the specialized nature of these larger components.
For users working with specific larger thermal loads this kit offers the necessary size and quality to maintain stable operating temperatures.
Specialized Sizes
The 40mm dimension is ideal for specialized cooling needs where standard electronics shims are too small.
Thermal Efficiency
High performance copper ensures that heat is moved quickly preventing thermal throttling in demanding applications.
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6. MECCANIXITY Heatsink Copper Sheet Shim – Best Pre-Adhesive Option
MECCANIXITY Heatsink Copper Sheet Shim
5 sets included
0.3mm thickness
20mm x 20mm size
Adhesive tape backing
This option stands out because it includes thermal conductive adhesive tape making installation much simpler than other kits. It is perfect for users who want a quick and reliable solution without extra steps.
Pros
- Convenient adhesive tape
- Easy installation
- Durable material
- Good for quick fixes
Cons
- Limited thickness choice
- Adhesive may wear
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The copper material can withstand high temperatures and effectively transfers heat from ICs to the copper sheet. The 0.3mm thickness is a common size for many memory modules and smaller chips.
The adhesive is convenient but may not be as permanent as using high quality thermal paste which some enthusiasts prefer for maximum performance. Additionally the fixed thickness limits its use for varying gap requirements.
If ease of use is your top priority this kit offers a practical solution for basic cooling patches in desktop computers and laptops.
Quick Installation
The pre applied adhesive allows for immediate attachment without the need for additional thermal paste or glue.
Thermal Durability
The copper construction ensures long lasting heat dissipation even under high thermal loads.
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7. Easycargo 20pcs Heatsink Copper Pad Shims – High Quality Tape Option
Easycargo 20pcs Heatsink Copper Pad Shims 15x15mm+ 3M 8810 pre Applied Thermal Conductive Adhesive Tape on Heat Sink for Cooling Laptop GPU CPU IC Chips VGA RAM (15x15x0.5mm)
20 pieces total
0.5mm thickness
15mm x 15mm size
3M 8810 tape
This kit includes pre applied 3M 8810 tape which is known for its reliability in industrial applications. It simplifies the thermal management process significantly for laptop and GPU cooling.
Pros
- 3M branded tape
- Good adhesive quality
- Compact size
- Passive cooling support
Cons
- Fixed thickness
- Higher price per unit
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The copper shims are designed to bridge the gap between chips and heat sinks effectively improving heat transfer. The 15mm size is ideal for smaller components found in modern electronics.
While the adhesive is convenient it may not be suitable for all surfaces or extreme temperature environments compared to direct paste application. The limited thickness range also means you must be sure of your needs.
It is a great choice for users looking for a reliable branded adhesive solution without compromising on the copper material quality.
Reliable Adhesive
The 3M 8810 tape ensures a secure bond that holds up well during thermal cycling.
Compact Design
The 15mm x 15mm size fits easily into compact laptop and GPU thermal layouts.
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8. PATIKIL Copper Heatsink Pad Shims – Best for Beginners
PATIKIL Copper Heatsink Pad Shims, 12 Pcs 15x15x0.3mm Copper Pad Shim IC Chipset GPU CPU Thermal Heatsink for Cooling Laptop Desktop Computer
12 pieces pack
0.3mm thickness
15mm x 15mm size
Smooth bright surface
This product has achieved a very high user rating due to its quality and ease of use for beginners. The smooth bright surface helps ensure good thermal contact with heatsinks.
Pros
- Very high rating
- Smooth finish
- Affordable
- Easy to clean
Cons
- No adhesive
- Single thickness
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The copper material is reliable for heat transfer and the pack includes twelve pieces which is enough for most standard laptop cooling projects. The 15mm size is versatile for many chipsets.
It does not include adhesive so you will need to apply thermal paste which may be an extra step for some. The single thickness limits versatility but makes it simple to use effectively.
If you are new to thermal shims this kit provides a straightforward and high quality starting point for cooling improvements.
Smooth Surface
The polished finish ensures minimal resistance for better heat transfer performance.
Beginner Friendly
Simple specifications and easy handling make it ideal for first time users.
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9. Leviton Copper Shims – Best for Connectors
Leviton Copper Shims, For 16-18 Series,Commercial Grade, Cam-Type Connector, 10 Per-Pack, A0004
10 per pack
16/18 series
Commercial grade
Cam-type connector
While this product serves a niche function it is included for its commercial grade quality and specific utility in electrical connections. It is designed for 16 to 18 series cam-type connectors.
Pros
- Commercial grade quality
- Specific connector fit
- Durable material
- Color coded
Cons
- Niche application
- Not for cooling
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The copper material ensures durability and conductivity which is essential for reliable electrical connections in commercial settings. The color coding helps with easy phase identification during installation.
It is not a thermal cooling solution but rather a mechanical aid for connectors. Users looking for general thermal shims should look elsewhere but those needing this specific hardware will find it excellent.
For specialized electrical applications this shim provides the reliability and fit needed for professional grade connections.
Commercial Grade
Designed for professional use this shim ensures reliable connections in demanding environments.
Specific Fit
The 16/18 series designation ensures compatibility with specific connector types.
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10. M METERXITY 3-Set Copper Shim Strip – Best for DIY Crafting
M METERXITY 3-Set Copper Shim Strip, Metal Sheet Stock Assortment 6" Length x 1" Width, 0.002", 0.004", 0.006", 0.008", 0.012", 0.016" Thickness Copper Sheet for DIY Craft Making Flat Bar
3 sets included
6 inch length
Variable thickness
DIY craft suitable
This assortment is ideal for DIYers who need to cut and shape their own thermal pads for custom projects. The strips are polished and have smooth edges making them safe and easy to handle.
Pros
- DIY customizable
- Multiple thicknesses
- High bendability
- Polished edges
Cons
- Not pre cut
- Thicker than thermal
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The variety of thicknesses ranging from 0.002 inches to 0.016 inches allows for precise custom fabrication. The material is strong yet easy to bend which is perfect for creating custom shapes.
It requires cutting to size which may be a drawback for those seeking ready to use pads. Also the thicknesses are generally thicker than typical cooling shims so testing is recommended.
If you enjoy hands-on crafting or need specific custom sizes this kit offers the flexibility and quality to build what you need.
Custom Shapes
The strips can be cut into any shape needed for unique thermal layouts.
Material Flexibility
High bendability allows for easy manipulation without breaking the material.
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Buying Guide – How to Choose the Best Copper Pad Shim Kit
Choosing the right kit involves considering several factors to ensure optimal thermal performance and compatibility with your specific hardware.
Material Quality
Look for kits made from pure copper like C1100 which offers high thermal conductivity around 401W/mK. This ensures efficient heat transfer from the source to the heatsink.
Higher quality copper will result in better cooling performance and longer lifespan compared to lower grade alternatives.
Thickness Variety
A good kit should offer a range of thicknesses to accommodate different gap sizes. Kits with 10 to 12 options are generally more versatile.
More options mean you can tailor the shim to the exact thermal gap required for your components.
Dimensions
Consider the size of the shims whether they are 15mm 20mm or larger. The size should match the components you are cooling.
Proper sizing ensures full coverage of the heat source without overlapping onto sensitive areas.
Adhesive vs Paste
Some kits come with pre-applied adhesive tapes while others require you to apply thermal paste separately. Adhesive is easier but paste may provide better long term performance.
Decide based on your comfort level with applying paste versus using a stick-on solution.
Quantity
The number of pieces in a kit can vary from four to over one hundred. Ensure the count is sufficient for your project needs.
Having extra pieces can be helpful for future maintenance or multiple component upgrades.
Finish and Edges
Shims with polished surfaces and smooth edges reduce air gaps and prevent physical damage during installation.
Avoid shims with burrs or rough edges that might scratch your components.
Compatibility
Check that the kit is advertised for use with your specific device types like CPUs GPUs or laptops.
Universal kits are often safer bets for general electronics cooling.
Price vs Value
Evaluate the cost relative to the number of pieces and the quality of materials. A higher price for pure copper may be worth the investment for critical cooling tasks.
Balance your budget with the reliability and performance you expect from the kit.
How to Use and Care for Your Copper Pad Shim Kit
Before installation clean the surface of the component and the heatsink with is to remove any dust or residue. This ensures optimal contact and thermal transfer.
Select the appropriate thickness for the gap you need to fill. Apply a thin layer of thermal paste if the kit does not include adhesive tape.
Place the shim firmly between the component and the heatsink ensuring it is aligned correctly. Monitor temperatures after installation to confirm improved cooling performance.
Frequently Asked Questions
What is the primary purpose of a copper pad shim kit?
These kits are used to fill the gaps between electronic components and heatsinks to improve heat transfer. Copper is used for its high thermal conductivity which helps keep devices cool.
Do copper shims need thermal paste?
While some kits come with adhesive it is often recommended to use thermal paste for best performance. The paste fills microscopic air gaps that the shim alone might leave.
How do I choose the right thickness?
You need to measure the gap between your component and the heatsink. If you do not know the exact size a kit with multiple thicknesses allows you to test and find the best fit.
Are these shims reusable?
Generally copper shims can be reused if they are not damaged. However the thermal paste will need to be replaced each time you remove and reinstall them.
Can these kits be used for laptops?
Yes many of these kits are designed specifically for laptop cooling including components like GPUs and CPUs. Always check the product dimensions for compatibility.
Why is copper better than aluminum for shims?
Copper has higher thermal conductivity than aluminum meaning it can transfer heat more efficiently. This is critical for high performance components that generate significant heat.
Final Thoughts on Choosing the Best Copper Pad Shim Kit
Our top picks highlight the versatility and quality available in today's copper shim kits for cooling various electronic devices. The Easycargo 100pcs kit stands out for its comprehensive selection.
When choosing prioritize material quality and thickness variety to ensure the kit fits your specific thermal needs effectively. Proper installation will maximize the cooling benefits.
Always verify current pricing and availability before purchasing as these details can change frequently. Selecting the right kit is a small investment that pays off in better device longevity.