MECCANIXITY Heatsink Copper Sheet Shim
3.9Editor score
Thermal Conductive Adhesive Tape
20mm x 20mm Size
0.3mm Thickness Option
5 Sets Included Per Pack
10 Best Copper Pad Shim Kit (October 2026) Expert Guide
Copper pad shim kits are essential for thermal management in electronics and computing devices. They fill gaps between heat sources and cooling solutions ensuring efficient heat transfer. Choosing the right kit depends on your specific application and thermal conductivity needs.
We evaluated ten products based on material quality, thickness variety, and compatibility with various components. Each kit offers unique advantages for cooling PCs, laptops, and other sensitive electronics effectively. Our analysis highlights the strengths and weaknesses of every option available today.
Every pick showcases detailed specifications and real-world performance insights to help you decide. Please note that product availability and pricing may fluctuate over time. Always check current listings before making your final purchase decision for your setup.
Top 3 Picks for Best Copper Pad Shim Kit
Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit
4.6Editor score
Pure Copper C1100 Material
12 Different Thickness Options
150mm x 15mm Dimensions
100 Piece Total Count
Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim
4.6Editor score
6 Thickness Variants Included
20mm x 20mm Footprint
40 Piece Total Assortment
Pure Copper Heatsink C1100
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Top 10 Best Copper Pad Shim Kit in 2026 Compared
The following table provides a side-by-side comparison of all ten selected copper pad shim kits. Review the key specifications and features to find the perfect match for your cooling requirements.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Easycargo 100pcs 12 sizes 15mm
Material: Copper C1100
Count: 100 Pieces
Size: 15mm x 15mm
Thicknesses: 12 Variants
4.6Editor score
Editor's Choice
Easycargo 40pcs 6 Sizes 20mm
Material: Copper C1100
Count: 40 Pieces
Size: 20mm x 20mm
Thicknesses: 6 Variants
4.6Editor score
Best Premium
20 x 20 x 1.2mm IC Chipset
Material: Copper Heatsink
Count: 20 Pieces
Size: 20mm x 20mm
Thickness: 1.2mm
4.7Editor score
Copper Thermal Shim Kit 55pcs
Material: Polished Copper
Count: 55 Pieces
Size: 15mm x 15mm
Thicknesses: 11 Variants
Easycargo 4pcs 40mm
Material: Copper Thermal
Count: 4 Pieces
Size: 40mm x 40mm
Thickness: 0.5mm
4.5Editor score
MECCANIXITY Heatsink Copper Sheet Shim
Material: Copper Adhesive
Count: 5 Sets
Size: 20mm x 20mm
Thickness: 0.3mm
3.9Editor score
Easycargo 20pcs Heatsink Copper Pad Shims
Material: Copper with 3M Tape
Count: 20 Pieces
Size: 15mm x 15mm
Thickness: 0.5mm
4.3Editor score
PATIKIL Copper Heatsink Pad Shims
Material: Copper Tone
Count: 12 Pieces
Size: 15mm x 15mm
Thickness: 0.3mm
4.8Editor score
Leviton Copper Shims
Material: Copper Shims
Count: 10 Per Pack
Series: 16-18 Series
Type: Cam-Type Connector
4.8Editor score
M METERXITY 3-Set Copper Shim Strip
Material: Copper Sheet Stock
Count: 3 Sets
Size: 6×1 Inches
Thicknesses: 6 Options
4.7Editor score
1. Easycargo 100pcs – Best Overall Copper Pad Shim Kit
Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit
Material: Copper C1100
Thermal Conductivity: 401W/mK
Count: 100 Pieces
Thickness Range: 0.1mm to 2mm
This kit stands out as the top choice due to its comprehensive assortment of 100 pieces across 12 different thicknesses. It uses pure Copper C1100 which offers excellent thermal conductivity for efficient heat dissipation in various electronics.
Pros
- Extensive thickness variety
- High thermal conductivity
- Affordable price point
- Wide component compatibility
Cons
- Some users find thin pads flimsy
- May require thermal paste
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The variety of sizes ensures you will find the right fit for almost any gap. From 0.1mm for delicate components to 2mm for larger gaps this kit covers all bases for cooling CPUs GPUs and VRAM modules.
While it is highly rated some users note that the thinnest shims can be difficult to handle without tearing. Additionally the pads do not come with adhesive so applying thermal paste is necessary for optimal performance.
This kit is perfect for hobbyists professionals who need a versatile solution for cooling high-performance components. Its balance of quality and quantity makes it the best overall pick for copper pad shims today.
Superior Thermal Performance
Pure Copper C1100 material ensures thermal heat transfer at 401W/mK for maximum cooling efficiency.
Versatile Application
Compatible with PC components laptops GPUs RAM VRAM PS5 and M.2 SSDs for broad usability.
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2. Easycargo 40pcs – Premium Quality Copper Pad Shim Kit
Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim Thermal Assortment Kit
Material: Copper C1100
Count: 40 Pieces
Size: 20mm x 20mm
Thickness Range: 0.3mm to 1.5mm
This assortment kit offers a slightly larger footprint at 20mm which is ideal for many standard IC chips and VRAM modules. It maintains the same high-quality C1100 copper construction ensuring excellent thermal conductivity.
Pros
- Larger 20mm footprint
- High-quality copper material
- Ideal for larger chips
- Cost-effective pricing
Cons
- Fewer thickness options than 100pc kit
- No adhesive backing included
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With six different thicknesses ranging from 0.3mm to 1.5mm this kit provides enough variety for most general cooling needs without overwhelming you with too many options to sort through.
The main drawback is the reduced number of thickness choices compared to the 100-piece kit. If you require very thin or very thick shims this might not offer the precise fit you need.
Buy this if you need a reliable premium kit for larger components where a 20mm size is preferred. It remains one of the best options for quality copper shims for electronics cooling.
Larger Surface Area
The 20mm x 20mm size provides better coverage for larger GPUs and VRAM components.
Reliable Heat Transfer
Copper C1100 ensures consistent thermal performance across all included thicknesses.
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3. MECCANIXITY Heatsink Copper Sheet Shim – Best Budget Copper Pad Shim Kit
MECCANIXITY Heatsink Copper Sheet Shim
Material: Copper with Adhesive
Count: 5 Sets
Size: 20mm x 20mm
Thickness: 0.3mm
This budget-friendly option simplifies installation by including thermal conductive adhesive tape on the back of each copper sheet. It allows for quick application without the mess of extra thermal paste.
Pros
- Pre-applied adhesive tape
- Very affordable price
- Ready to install
- Durable copper material
Cons
- Limited thickness options
- Adhesive may lose stickiness
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The 0.3mm thickness is standard for many memory modules and VRAM cooling. It provides a reliable thermal path and withstands temperatures up to 160 degrees effectively.
However the adhesive quality varies and some units may not stick as firmly as expected over time. Also the limited thickness options mean it only suits specific gaps not a variety of needs.
For users seeking a quick affordable fix for specific components this kit is a strong contender. It offers great value if you know exactly what size you require.
Easy Application
Peel and stick design with conductive adhesive makes installation straightforward.
High-Temp Durability
Withstands high temperatures ensuring longevity in hot electronic environments.
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4. 20 x 20 x 1.2mm IC Chipset – Solid Value Copper Pad Shim Kit
20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink
Material: Copper Heatsink
Count: 20 Pieces
Size: 20mm x 20mm
Thickness: 1.2mm
This pack provides twenty identical 1.2mm copper thermal pads ideal for those who know they need this specific thickness. It enhances performance by efficiently transferring heat away from chips.
Pros
- Consistent 1.2mm thickness
- Simple compact design
- Good for tight spaces
- Easy installation
Cons
- Single thickness only
- No adhesive included
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The compact design fits perfectly in tight spaces on laptops or GPUs without adding bulk. It is made from reliable copper material ensuring good conductivity.
Since it comes in one thickness it lacks versatility for varied gap filling tasks. You will need to ensure 1.2mm is the exact dimension required for your application.
Buy this if you have multiple devices needing the same thermal gap solution. Its simplicity and reliable rating make it a solid choice for consistent results.
Efficient Heat Transfer
Designed to transfer heat effectively to sinks for cooler components.
Compact Fit
Small 20mm dimensions suit modern compact electronic enclosures well.
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5. Copper Thermal Shim Kit 55pcs – Comprehensive Thickness Copper Pad Shim Kit
Copper Thermal Shim Kit – 55pcs
Material: Polished Copper
Count: 55 Pieces
Size: 15mm x 15mm
Thicknesses: 11 Variants
This kit offers 55 polished copper shims across 11 thicknesses providing a great balance between variety and quantity. The polished surface ensures excellent contact with heatsinks for better conduction.
Pros
- 11 different thicknesses
- Polished surface finish
- Universal compatibility
- Easy selection process
Cons
- Fewer pieces per thickness
- Rating data missing
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It fits GPUs CPUs and laptops easily due to the standard 15x15mm size. It is suitable for upgrading cooling in desktops and gaming consoles effectively.
The only downside is the lower count per thickness compared to larger kits. If you need multiple pads of the same thickness you might run out quickly.
This is a great choice for precision work where exact thickness matters most. It simplifies selecting the right spacer for sensitive electronic components.
Polished Quality
Polished copper surfaces optimize thermal interface contact and heat flow.
Universal Fit
15x15mm size works across most common laptop and desktop chips.
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6. Easycargo 4pcs 40mm – Large Format Copper Pad Shim Kit
Easycargo 4pcs 40mm Copper Pad Shim Thermal Kit
Material: Copper Thermal
Count: 4 Pieces
Size: 40mm x 40mm
Thickness: 0.5mm
Designed for specific large components like PS3 cooling or TEC modules this kit offers four 40mm shims. It has a low profile 0.5mm thickness suitable for gap filling.
Pros
- Large 40mm size
- Specialized for PS3
- High thermal conductivity
- Low profile design
Cons
- Very low piece count
- Single thickness only
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The high-performance copper ensures excellent thermal conductivity for larger heat sources. It is a niche product perfect for console mods or 3D printers.
You only get four pieces which limits use to small projects. It does not offer the versatility needed for general electronic repair.
If you are working on a large heat sink or specific console repair this fits well. It targets a specific use case effectively with high-quality material.
Targeted Application
Specially designed for PS3 and TEC Peltier module cooling.
High Conductivity
400 W/m-k conductivity ensures efficient heat dissipation.
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7. Easycargo 20pcs – Adhesive Copper Pad Shim Kit
Easycargo 20pcs Heatsink Copper Pad Shims 15x15mm+ 3M 8810 pre Applied Thermal Conductive Adhesive Tape
Material: Copper with 3M Tape
Count: 20 Pieces
Size: 15mm x 15mm
Thickness: 0.5mm
This kit simplifies passive cooling with pre-applied 3M thermal conductive adhesive tape. It is ready to use immediately without extra tools or mess.
Pros
- Pre-applied 3M tape
- No extra paste needed
- Standard 15mm size
- Reliable brand
Cons
- Fixed 0.5mm thickness
- Tape quality may vary
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The 15x15mm size is standard for many chips and RAM modules. It provides a reliable interface for cooling laptops and GPUs.
Since it comes with fixed 0.5mm thickness it lacks flexibility for different gap sizes. Ensure this dimension matches your needs before purchasing.
Choose this for quick and easy installation where adhesive is preferred over paste. It is ideal for users who want a no-fuss thermal solution.
Ready to Use
Pre-applied tape means no extra paste or tools required.
Effective Passive Cooling
Optimized for passive cooling of GPUs CPUs and RAM.
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8. PATIKIL Copper Heatsink Pad Shims – Reliable Copper Pad Shim Kit
PATIKIL Copper Heatsink Pad Shims
Material: Copper
Count: 12 Pieces
Size: 15mm x 15mm
Thickness: 0.3mm
This kit consists of twelve high-quality copper shims with smooth burr-free edges. It prevents damage to sensitive components during installation ensuring safe handling.
Pros
- Smooth bright surface
- No burrs on edges
- High rating
- Wide application
Cons
- Requires own adhesive
- Fixed 0.3mm thickness
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The copper material provides good electrical and thermal conductivity. It is suitable for various devices including laptops and GPUs.
It lacks adhesive so you must prepare your own adhesive or paste. This allows flexibility but adds an extra step to the process.
Buy this if you value quality material and smooth edges for safe handling. Its high rating indicates strong reliability for thermal management tasks.
Safe Handling
Smooth edges without burrs protect delicate electronic components.
Excellent Conductivity
Pure copper ensures efficient heat and electricity transfer.
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9. Leviton Copper Shims – Specialty Industrial Copper Pad Shim Kit
Leviton Copper Shims
Material: Copper
Count: 10 Pieces
Series: 16-18 Series
Type: Cam-Type
This product is a commercial-grade electrical component designed for cam-type connectors. It is built for durability and includes color-coded insulators for phase identification.
Pros
- Commercial grade quality
- Color-coded insulators
- Durable construction
- Brand reputation
Cons
- Not for general electronics
- Specific series only
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It is ideal for electrical work rather than computer cooling. The hard thermoplastic screw head adds strength and longevity to the connector.
This is not suitable for typical PC or laptop thermal cooling needs. It serves a specialized industrial purpose for electrical connections.
Choose this for professional electrical repairs requiring specific series compatibility. It ensures reliable connections in commercial electrical systems.
Commercial Grade
Built for durability in professional electrical environments.
Safety Features
Color-coded insulators ensure correct phase identification and safety.
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10. M METERXITY 3-Set Copper Shim Strip – Customizable Copper Pad Shim Kit
M METERXITY 3-Set Copper Shim Strip
Material: Copper Sheet
Count: 3 Sets
Size: 6×1 Inches
Thicknesses: 6 Options
This assortment offers raw copper sheets that can be cut to exact shapes and sizes. It is perfect for DIY projects where standard pads do not fit.
Pros
- Cut to custom sizes
- High strength hardness
- Corrosion resistant
- Versatile for crafts
Cons
- Requires cutting tools
- Larger raw stock
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It provides six different thickness options allowing for precise adjustments. The material has high strength and hardness for durability.
You will need metal scissors to cut the desired shapes. This adds effort compared to pre-cut shims but offers complete customization.
Choose this for crafts or unique repair projects needing custom dimensions. It allows for maximum flexibility in creating custom shims.
Customizable Sizes
Cut to exact sizes for unique DIY and craft projects.
Durable Material
High-strength copper resists corrosion and bending.
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Buying Guide – How to Choose the Best Copper Pad Shim Kit
Selecting the right copper pad shim kit requires considering several key factors to ensure optimal thermal performance.
Material Purity
Pure copper such as C1100 offers the best thermal conductivity for efficient heat transfer. Avoid alloys that might reduce performance over time.
Always check the product specifications for material type to ensure high-quality copper is used.
Thickness Variety
Different components require different gap sizes so a kit with multiple thicknesses is ideal. Look for kits ranging from 0.1mm to 2mm for versatility.
More thickness options give you better chances of finding the perfect fit for your device.
Size Compatibility
Ensure the dimensions of the shims match your target component such as GPUs or RAM modules. Standard sizes like 15mm or 20mm are most common.
Measure your gap carefully before purchasing to avoid buying incompatible sizes.
Count Per Pack
More pieces mean you can fix multiple devices or have backups. Consider whether you need bulk or just a few shims.
For hobbyists a higher count provides better long-term value than small packs.
Adhesive Requirements
Some kits include pre-applied adhesive tape while others require thermal paste. Pre-applied is easier but paste often performs better.
Decide if you want convenience or maximum thermal performance when choosing adhesive.
Price Value
Compare the price against the number of pieces and quality offered. Cheap kits might save money but lack durability.
Invest in a reasonably priced kit that offers reliable performance over time.
Brand Reputation
Brands with positive customer feedback often provide more reliable products. Check reviews to gauge quality and consistency.
A reputable brand reduces the risk of receiving defective shims.
Thermal Conductivity
Higher thermal conductivity ensures faster heat dissipation for cooler components. Look for products specifying conductivity values.
Better conductivity directly translates to lower operating temperatures.
How to Use and Care for Your Copper Pad Shim Kit
Clean the surface of both the heat source and the heatsink with alcohol before application. This ensures no dust or oil interferes with the thermal interface.
Cut the shim to the required size using scissors if the kit provides strips. For pre-cut shims simply peel off the adhesive backing if present.
Place the shim between the component and heatsink ensuring full contact. Apply gentle pressure to secure the adhesive or paste in place.
Frequently Asked Questions
Are copper shims better than thermal pads?
Copper shims generally offer higher thermal conductivity compared to standard thermal pads. They are rigid which makes them great for filling specific gaps. However thermal pads are more flexible and easier to use in irregular spaces.
Do I need thermal paste with copper shims?
If the shims do not have pre-applied adhesive you should use thermal paste to fill microscopic air gaps. This improves heat transfer significantly. Always clean surfaces before applying paste.
Can I cut copper shims to size?
Yes you can cut copper shims with metal scissors or a utility knife if they come as larger sheets. Be sure to smooth edges to avoid damaging components. This allows for custom sizing.
How do I choose the right thickness?
Choose a thickness that matches the gap between your component and heatsink. Using too thick a shim may prevent the cooler from mounting properly. Measure the gap first.
Will copper shims rust over time?
Copper can oxidize over time turning green but this does not affect thermal performance significantly. Keep the area dry to minimize oxidation. Most shims are polished to resist corrosion.
Are copper shims safe for electronics?
Copper is safe for most electronics but it conducts electricity too. Ensure the shim does not touch sensitive circuit traces. Using non-conductive thermal paste can help insulate edges.
Do shims work for GPU VRAM cooling?
Yes copper shims are commonly used for VRAM cooling to fill gaps between chips and heat sinks. They help dissipate heat efficiently from memory modules. Ensure compatibility with your specific GPU model.
Where can I buy copper shim kits?
You can find copper shim kits on major online retailers like Amazon. Look for kits with good ratings and detailed specifications. Check user reviews for real-world performance insights.
Final Thoughts on Choosing the Best Copper Pad Shim Kit
The Easycargo 100pc kit stands out as the best overall choice due to its versatility and quality. It offers a wide range of thicknesses for nearly any cooling need.
Prioritize material purity and thickness variety when selecting a kit. Ensure the dimensions match your specific component requirements for optimal results.
Always verify the current price and availability before purchasing. Prices can fluctuate so checking current listings ensures you get the best deal today.