20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink
4.7Editor score
Compact 20mm size
High thermal conductivity
Easy installation design
10 Best Copper Pad Shim Kit (October 2026) Expert Guide
Finding the right copper pad shim kit is essential for efficient thermal management in modern electronics. These kits provide precise gap filling between heat sources and coolers to ensure optimal heat transfer and system stability.
We evaluated ten top-rated kits based on material purity, thickness variety, and compatibility with common components like GPUs, CPUs, and VRAM. Each product was analyzed for its potential to improve cooling performance in various builds.
Each pick highlights key features, pros, and cons to help you choose the best fit for your needs. Please note that product availability and pricing may change over time so verify details before purchasing.
Top 3 Picks for Best Copper Pad Shim Kit
Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit
4.6Editor score
100 pieces included
12 thickness variations
Pure copper C1100
Copper Thermal Shim Kit – 55pcs, 11 Thicknesses
4.5Editor score
Polished copper surface
Wide thickness range
Universal compatibility
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Top 10 Best Copper Pad Shim Kit in 2026 Compared
The following comparison table breaks down the key specifications and features of each copper pad shim kit to help you make an informed decision for your cooling needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Easycargo 100pcs Copper Shim Kit
100 pieces total
15mm x 15mm size
12 thickness options
Copper C1100 material
4.6Editor score
Editor's Choice
Easycargo 40pcs Copper Shim Kit
40 pieces total
20mm x 20mm size
6 thickness options
Copper C1100 material
4.6Editor score
Best Premium
20 x 20 x 1.2mm IC Chipset Heatsink
20 pieces total
20mm x 20mm size
1.2mm thickness
Copper heatsink pad
4.7Editor score
Copper Thermal Shim Kit 55pcs
55 pieces total
15mm x 15mm size
11 thickness options
Polished copper material
4.5Editor score
Easycargo 4pcs 40mm Copper Shim
4 pieces total
40mm x 40mm size
0.5mm thickness
Copper thermal pad
4.5Editor score
MECCANIXITY Heatsink Copper Sheet Shim
5 sets total
20mm x 20mm size
0.3mm thickness
With adhesive tape
3.9Editor score
Easycargo 20pcs Heatsink Copper Pad Shims
20 pieces total
15mm x 15mm size
0.5mm thickness
3M 8810 tape
4.3Editor score
PATIKIL Copper Heatsink Pad Shims
12 pieces total
15mm x 15mm size
0.3mm thickness
Copper material
4.8Editor score
Leviton Copper Shims
10 pieces total
Cam-Type Connector
Commercial Grade
Hose Pipe Fitting
4.8Editor score
M METERXITY 3-Set Copper Shim Strip
3 sets total
6 inches length
Multiple thicknesses
DIY Metal Stock
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
Copper C1100
15mm square size
This Easycargo kit stands out as the top choice for enthusiasts needing versatile thermal solutions. With 100 pieces across 12 distinct thicknesses, it offers unparalleled flexibility for custom cooling builds on PCs and laptops.
Pros
- Large variety of thicknesses
- Pure copper conductivity
- Perfect for tight spaces
- Excellent value for quantity
- Suitable for multiple components
Cons
- May require cutting for custom sizes
- Some users prefer adhesive backing
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The use of pure copper C1100 ensures high thermal conductivity of 401W/mK which is essential for efficient heat transfer. The 15mm x 15mm size is ideal for covering VRAM VRM and other small chips without bulk.
While the kit lacks pre-applied adhesive which may require users to source their own thermal tape the sheer volume of shims makes up for it. This allows for multiple attempts and adjustments during installation.
It is the perfect choice for DIYers who want to optimize cooling across multiple systems or need a comprehensive kit for various projects. The durability and quality of the copper make it a long-lasting investment.
Thermal Efficiency
The high conductivity of C1100 copper ensures rapid heat dissipation from sensitive components like GPUs and CPUs to maintain safe operating temperatures.
Versatile Thicknesses
With thicknesses ranging from 0.1mm to 2mm you can precisely fill gaps between heat sources and coolers for optimal contact and performance.
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2. Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim Thermal Assortment Kit – Best Value Copper Pad Shim Kit
Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim Thermal Assortment Kit
40 pieces total
6 thickness options
20mm square size
Copper C1100
This 40-piece kit is a fantastic budget option for those needing slightly larger thermal pads. The 20mm x 20mm size covers more area which is beneficial for larger VRAM modules or integrated GPU coolers.
Pros
- Larger 20mm coverage
- Affordable pricing
- Good variety of thicknesses
- Pure copper material
- Ideal for larger chips
Cons
- Fewer thickness options than 100pc kit
- No adhesive tape included
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Like the 100pc version it uses C1100 copper for excellent heat transfer. The six thicknesses cover most common gap requirements making it a practical choice for standard upgrades.
The trade-off is fewer pieces and thickness variations compared to the premium kit but for most users this is more than sufficient. The price point makes it accessible for casual tinkerers.
It is highly recommended for anyone looking to upgrade cooling without breaking the bank. The quality matches the more expensive options ensuring reliable performance for years.
Larger Surface Area
The 20mm size is perfect for components that require more coverage than standard 15mm shims offering better heat spread across the surface.
Cost Effective
With a lower price point it provides an excellent entry into high-quality thermal shims without compromising on material purity or conductivity.
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3. 20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink – Compact Copper Pad Shim Kit
20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink
20 pieces total
20mm x 20mm size
1.2mm thickness
Copper heatsink pad
This pack of 20 specialized thermal pads offers a ready-to-use solution for specific cooling needs. The fixed 1.2mm thickness simplifies selection for users who know their gap requirements.
Pros
- Highly rated product
- Pre-cut ready to use
- Efficient heat transfer
- Tight space design
- Easy installation
Cons
- Single thickness option
- No adhesive backing
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The compact design fits perfectly into tight spaces common in laptops and mini PCs. Its ability to transfer heat efficiently is backed by user ratings and product specifications.
Since all pieces are the same size it lacks flexibility for variable gaps but excels in uniform applications. It is straightforward to install and provides immediate cooling improvements.
Ideal for targeted upgrades where consistency is key this kit delivers reliable performance. It is a solid choice for standardizing thermal management across similar components.
Ready To Install
Pre-cut to exact dimensions these shims require no cutting or measuring allowing for quick and precise application on various components.
Optimized Thickness
The 1.2mm thickness is tailored to bridge common gaps between chips and stock coolers ensuring optimal contact without adding unnecessary bulk.
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4. Copper Thermal Shim Kit – 55pcs, 11 Thicknesses – Premium Copper Pad Shim Kit
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 options
Polished copper
15mm x 15mm size
This premium kit stands out with its polished copper finish which maximizes contact area for heat transfer. With 11 distinct thicknesses it offers precise control for demanding cooling tasks.
Pros
- Polished finish for contact
- Wide thickness range
- High-quality materials
- Universal compatibility
- Easy installation
Cons
- No adhesive included
- May require paste application
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The 15mm size is ideal for standard chips while the polished surface reduces air gaps. It supports a wide range of electronics from desktop CPUs to gaming consoles.
While it requires additional thermal paste or tape for attachment the quality of the shims justifies the extra step. It ensures durable and efficient cooling over long periods.
Recommended for users seeking precision and reliability this kit is a top-tier choice. It balances variety and quality to meet the needs of advanced thermal upgrades.
Polished Surface
The polished finish on the copper shims minimizes air pockets ensuring maximum heat transfer between the component and the heatsink.
Precision Fit
With 11 thickness options you can fine-tune the gap between components to achieve the most efficient cooling possible.
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5. Easycargo 4pcs 40mm Copper Pad Shim Thermal Kit – Large Area Copper Pad Shim Kit
Easycargo 4pcs 40mm Copper Pad Shim Thermal Kit
4 pieces total
40mm x 40mm size
0.5mm thickness
Copper material
This kit is designed for larger thermal gaps requiring substantial coverage. The 40mm x 40mm size is perfect for consoles like PS3 or large heatsink interfaces in industrial equipment.
Pros
- Large 40mm coverage
- Thick for specific gaps
- Durable copper construction
- Suitable for consoles
- Great for larger heatsinks
Cons
- Limited quantity
- Single thickness only
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The 0.5mm thickness is substantial enough to fill significant gaps without being too rigid. High-quality copper ensures that heat moves efficiently from hot spots to coolers.
Because it only includes four pieces it is best suited for specific projects rather than general use. The size and thickness make it a specialized tool for particular cooling needs.
It is an excellent choice for users dealing with large components or unique setups. The quality ensures that the larger surface area performs as expected without thermal resistance.
Large Coverage
The 40mm dimensions allow this shim to cover extensive areas making it ideal for large VRMs or industrial cooling tasks.
Specialized Use
Perfect for larger components like Peltier modules or console GPUs where standard shims are too small to be effective.
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6. MECCANIXITY Heatsink Copper Sheet Shim – Pre-Adhered Copper Pad Shim Kit
MECCANIXITY Heatsink Copper Sheet Shim
5 sets total
20mm x 20mm size
0.3mm thickness
With adhesive tape
This kit simplifies installation with pre-applied thermal conductive adhesive tapes. It eliminates the need for separate paste or tape making it a convenient choice for quick fixes.
Pros
- Includes adhesive backing
- Quick installation
- Good for small chips
- Copper conductivity
- Ready to use
Cons
- Lower rating from users
- Adhesive quality may vary
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The copper material offers good heat transfer properties ensuring that components stay cool during operation. It is well-suited for laptops and small electronics where space is limited.
Users note that the adhesive quality might be inconsistent but the ease of use makes up for it in many cases. It saves time and effort during the cooling upgrade process.
Best for users who prioritize convenience over premium build quality this kit is a practical option. It provides a straightforward way to add cooling to small components without hassle.
Adhesive Convenience
The included thermal adhesive tapes allow for immediate attachment to components without the mess of applying additional thermal paste.
Compact Size
At 20mm x 20mm these shims are perfect for small chips and memory modules in laptops and mini PCs.
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7. Easycargo 20pcs Heatsink Copper Pad Shims – Pre-Adhesive Copper Pad Shim Kit
Easycargo 20pcs Heatsink Copper Pad Shims 15x15mm+ 3M 8810 pre Applied Thermal Conductive Adhesive Tape
20 pieces total
15mm x 15mm size
0.5mm thickness
3M 8810 tape
This kit uses high-quality 3M 8810 adhesive tape for reliable and secure attachment. It ensures that the copper shim stays in place even under vibration or movement in laptops.
Pros
- Uses 3M 8810 tape
- Reliable adhesion
- High thermal conductivity
- Good quantity
- Ready to install
Cons
- Single thickness option
- Not ideal for variable gaps
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The 0.5mm thickness is suitable for standard gaps between chips and coolers. With 20 pieces it provides enough quantity for multiple components or replacement over time.
Users appreciate the convenience of pre-applied tape which speeds up the installation process significantly. The copper material ensures efficient heat dissipation for improved system performance.
Ideal for users who want a plug-and-play thermal solution this kit delivers. It is especially useful for passive cooling setups where secure adhesion is critical.
High Quality Tape
The use of 3M 8810 adhesive ensures a strong bond that prevents shims from shifting during system operation.
Passive Cooling
This kit is perfect for passive cooling scenarios where components rely solely on the shim to transfer heat without fans.
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8. PATIKIL Copper Heatsink Pad Shims – Budget Friendly Copper Pad Shim Kit
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 total
15mm x 15mm size
0.3mm thickness
Highly rated
This kit has earned high praise for its quality and performance. The smooth bright surface without burrs ensures safe handling and maximum contact for efficient heat transfer.
Pros
- Highest rated option
- Smooth bright surface
- No burrs on edges
- Durable material
- Affordable
Cons
- Single thickness
- No adhesive included
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The 0.3mm thickness is ideal for thin gaps common in modern laptops and desktop GPUs. It is made of reliable copper that withstands high temperatures and long-term use.
While it does not include adhesive it offers excellent value for the price. The high rating from users confirms its effectiveness in preventing overheating and performance degradation.
Highly recommended for budget-conscious buyers who do not want to compromise on quality this kit is a top contender. It provides a reliable solution for everyday thermal management needs.
Smooth Finish
The burr-free edges and smooth surface make installation safe and ensure optimal thermal contact without damaging components.
High User Rating
With one of the highest ratings in this category users confirm that these shims deliver consistent and effective cooling results.
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9. Leviton Copper Shims – Electrical Connector Copper Shim
Leviton Copper Shims
10 pieces total
Cam-Type Connector
Commercial Grade
For 16-18 Series
While primarily designed for electrical connectors this product showcases high-quality copper construction. It is ideal for specific electrical applications where secure connections and thermal stability are required.
Pros
- Commercial Grade quality
- Shatter proof insulator
- Color-coded identification
- Durable construction
- Easy installation
Cons
- Specific for connectors
- Not for general cooling
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The commercial grade build ensures durability and reliability in professional settings. Color-coded insulators make phase identification easy reducing installation errors during assembly.
It is not a general thermal cooling kit but serves specific needs in electrical maintenance and repair. The shatter-proof materials add an extra layer of safety and longevity.
Best for professionals needing reliable copper shims for connectors this kit meets strict standards. It provides a high-quality option for electrical and industrial thermal management tasks.
Professional Grade
Designed for commercial use these shims meet high standards for durability and safety in electrical installations.
Safety Features
The shatter and crack-proof insulators ensure safe handling and reliable performance in critical electrical systems.
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10. M METERXITY 3-Set Copper Shim Strip – DIY Copper Sheet Stock
M METERXITY 3-Set Copper Shim Strip, Metal Sheet Stock Assortment
3 sets total
6 inches length
Multiple thicknesses
DIY Metal Stock
This assortment offers copper strips ideal for DIY projects and custom thermal solutions. The wide range of thicknesses allows users to cut the exact size needed for any application.
Pros
- DIY cuttable strips
- Wide thickness variety
- High quality copper
- No burrs
- Versatile use
Cons
- Requires cutting tools
- Not pre-cut to size
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High-quality copper ensures excellent conductivity and durability for both thermal and mechanical tasks. The smooth and polished edges make it safe to handle and easy to install.
While it requires cutting tools it offers unmatched flexibility for custom shapes and sizes. It is perfect for users who need specific dimensions not available in standard kits.
Best for crafters and technicians who want to fabricate custom shims this kit is invaluable. It provides a high-quality base material for a variety of professional and hobbyist projects.
Custom Fabrication
The long strips allow you to cut any shape or size to fit unique or non-standard components and devices.
Thickness Variety
With thicknesses from 0.002 to 0.016 inches you can find the perfect fit for even the smallest gaps in electronics.
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Buying Guide – How to Choose the Best Copper Pad Shim Kit
Choosing the right copper pad shim kit requires understanding your specific thermal needs and component sizes.
Material Purity
Ensure the kit uses pure copper such as C1100 for optimal thermal conductivity. Higher purity copper transfers heat more efficiently than alloys or plating.
Look for materials that promise high thermal conductivity ratings to ensure effective cooling.
Thickness Options
A good kit should offer multiple thicknesses to accommodate various gap sizes between components and heatsinks. This flexibility is crucial for precise thermal management.
Choose kits with at least 6 to 12 thickness options for maximum versatility.
Size Compatibility
Check that the shim dimensions match your components such as VRAM VRM or GPU dies. Common sizes include 15mm x 15mm and 20mm x 20mm.
Select sizes that cover the necessary area without interfering with other parts.
Quantity Included
Consider how many shims are in the kit. Larger kits provide more value and allow for multiple projects or replacements.
Kits with 40 to 100 pieces are ideal for extensive upgrades.
Adhesive vs. Non-Adhesive
Some kits come with pre-applied thermal adhesive for easier installation while others require separate tape or paste.
Pre-applied adhesive is convenient but may limit rework; non-adhesive allows for custom paste application.
Surface Finish
Polished or smooth finishes reduce air gaps and improve thermal contact. Avoid shims with burrs or rough edges that can damage components.
Look for smooth bright surfaces to ensure safety and performance.
Brand Reputation
Choose brands with positive user reviews and reliable customer support to ensure product quality and warranty protection.
Established brands often provide consistent quality and detailed specifications.
Price Value
Balance cost with the features offered. Higher prices may not always mean better performance but premium materials and variety justify the cost.
Invest in a kit that meets your needs without overpaying for unused features.
How to Use and Care for Your Copper Pad Shim Kit
Prepare the surface by cleaning it thoroughly with alcohol and a microfiber cloth to remove dust and oils for better adhesion and thermal transfer.
Apply a thin layer of thermal paste if the shim does not have adhesive backing to fill any microscopic gaps between the shim and the component.
Store remaining shims in a dry place to prevent oxidation and ensure they stay clean and ready for future use.
Frequently Asked Questions
What are copper pad shims used for?
Copper pad shims are used to fill gaps between heat-generating components like GPUs and CPUs and their cooling solutions. They improve thermal transfer to prevent overheating and ensure stable performance.
Do copper shims need adhesive?
Not always. Some kits come with pre-applied adhesive while others require you to apply thermal paste or tape separately. Check the product details to know what is included.
Are these shims safe for laptops?
Yes if you choose the correct thickness and size for your components. Ensure you do not create too much pressure on the motherboard during installation.
How do I measure the gap size?
Use a digital caliper to measure the space between the component and the heatsink. Compare this to the available thickness options in the kit to select the right one.
Do copper shims degrade over time?
Copper is durable but can oxidize if not protected. Proper installation and storage will maintain their effectiveness for many years without significant degradation.
Can I use multiple shims for a larger gap?
Yes you can layer shims if needed but ensure they stay aligned to avoid uneven contact. However single thicker shims are generally more reliable for larger gaps.
Will these void my warranty?
In some cases modifying cooling components may void warranties. Check your device warranty terms before installing any aftermarket thermal shims.
How often should I replace thermal shims?
Copper shims are long-lasting and rarely need replacement. Inspect them periodically for oxidation or wear especially in dusty environments.
Final Thoughts on Choosing the Best Copper Pad Shim Kit
We reviewed ten top copper pad shim kits with the Easycargo 100pcs kit leading in versatility and value for most users.
Prioritize kits with pure copper materials and a variety of thicknesses to ensure they fit your specific cooling requirements effectively.
Remember to check current availability and product specifications before purchasing to ensure you get the right solution for your build.