MECCANIXITY Heatsink Copper Sheet Shim
3.9Editor score
Includes adhesive backing tape
0.3mm uniform thickness
Affordable price point
10 Best Copper Pad Shim Kit (October 2026) Expert Guide
Copper pad shim kits are essential tools for enthusiasts who need to manage heat in compact electronic devices. These kits provide precise spacing between components and heatsinks, ensuring optimal thermal transfer without gaps. Choosing the right kit can significantly improve system stability and longevity.
We compared ten top-rated kits based on material quality, thickness variety, and ease of installation. Each product was evaluated for its thermal conductivity and compatibility with common hardware like GPUs and CPUs. Our analysis focuses on real-world performance and user feedback.
Each pick in this list highlights specific strengths tailored to different cooling needs. From budget-friendly options to comprehensive assortments, there is a kit for every setup. Please note that product availability and pricing may change over time.
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 distinct thickness options
Pure copper C1100 material
PATIKIL Copper Heatsink Pad Shims
4.8Editor score
Smooth bright surface finish
No burrs on edges
High thermal conductivity
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Top 10 Best Copper Pad Shim Kit in 2026 Compared
The following table provides a side-by-side overview of all ten selected copper pad shim kits. It highlights key specifications such as dimensions, material, and quantity to help you make an informed decision.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit
100 pieces count
12 thicknesses included
15mm x 15mm size
Copper C1100 material
4.6Editor score
Editor's Choice
Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim Thermal Assortment Kit
40 pieces count
6 thicknesses included
20mm x 20mm size
Copper C1100 material
4.6Editor score
Best Premium
20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink
20 pieces count
1.2mm thickness
20mm x 20mm size
Integrated thermal pad
4.7Editor score
Copper Thermal Shim Kit – 55pcs, 11 Thicknesses (0.1–2.0mm)
55 pieces count
11 thicknesses included
15mm x 15mm size
Polished copper material
4.5Editor score
Easycargo 4pcs 40mm Copper Pad Shim Thermal Kit
4 pieces count
0.5mm thickness
40mm x 40mm size
High thermal conductivity
4.5Editor score
MECCANIXITY Heatsink Copper Sheet Shim
5 sets count
0.3mm thickness
20mm x 20mm size
Thermal adhesive tape
3.9Editor score
Easycargo 20pcs Heatsink Copper Pad Shims 15x15mm+ 3M 8810
20 pieces count
0.5mm thickness
15mm x 15mm size
3M adhesive backing
4.3Editor score
PATIKIL Copper Heatsink Pad Shims
12 pieces count
0.3mm thickness
15mm x 15mm size
Bright surface finish
4.8Editor score
Leviton Copper Shims
10 pieces count
Cam-Type Connector
Commercial Grade
Hard Thermoplastic head
4.8Editor score
M METERXITY 3-Set Copper Shim Strip
3 sets count
6 inch length
1 inch width
Assorted thicknesses
4.7Editor score
1. Easycargo 100pcs – Best Overall Copper Pad Shim Kit
Easycargo 100pcs 12 sizes 15mm Copper Pad Shim Kit
100 pieces count
12 thickness options
401W/mK conductivity
Copper C1100
This kit offers the most comprehensive selection of copper shims available. With 100 pieces across 12 thicknesses, it covers almost any cooling gap need. The pure copper C1100 material ensures top-tier heat transfer performance.
Pros
- Large quantity of pieces
- Wide thickness variety
- Excellent thermal conductivity
- Versatile PC size
- High user rating
Cons
- No adhesive included
- May need cutting
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The variety of thicknesses allows for precise gap filling in complex builds. You can find the exact thickness needed for VRAM or VRM cooling without extra bulk. The low profile design fits well in tight laptop spaces.
Installation requires applying thermal paste separately which adds a step. Some users may find the pieces require trimming to fit specific slots. However the material quality justifies the extra effort.
This kit is ideal for builders who need flexibility and reliability. It works well for PCs laptops and gaming consoles. We highly recommend it for anyone serious about thermal management.
Superior Thermal Performance
Copper C1100 provides 401W/mK conductivity ensuring efficient heat dissipation from sensitive components.
Versatile Compatibility
Works across PCs laptops GPUs and consoles making it a universal choice for electronics cooling.
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2. Easycargo 40pcs – Best Value Assortment
Easycargo 40pcs 6 Sizes 20mm Copper Pad Shim Thermal Assortment Kit
40 pieces count
6 thickness options
20mm x 20mm size
Copper C1100
This assortment provides a balanced mix of thicknesses for standard cooling tasks. The 20mm size is perfect for many GPU VRAM pads. It delivers high conductivity without the bulk of larger shims.
Pros
- Good piece count
- Solid thickness range
- High conductivity
- Affordable cost
- Compact size
Cons
- No adhesive backing
- Limited thickness options
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The 20mm footprint suits most modern graphics card memory modules. It is lighter than the 100pc version but still offers enough quantity for multiple projects. Users appreciate the consistent quality of the copper.
Without adhesive you must apply paste carefully to ensure contact. The thickness range is narrower than the 100pc kit but covers common needs. It is less ideal for custom or highly varied gaps.
Choose this if you need a reliable mid-size kit for GPUs. It saves money while maintaining performance. It is a solid choice for focused cooling projects.
Optimized for GPU VRAM
The 20mm size fits standard VRAM configurations ensuring effective heat transfer without interference.
Material Consistency
Copper C1100 ensures every shim in the kit performs uniformly for reliable cooling results.
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3. 20 x 20 x 1.2mm – Best Pre-Adhesive Option
20 x 20 x 1.2mm IC Chipset GPU CPU Thermal Heatsink
20 pieces count
1.2mm thickness
20mm x 20mm size
Integrated pad
This option simplifies installation with a pre-attached thermal pad. It is ready to apply directly to the CPU or GPU. The 1.2mm thickness fits many stock cooler gaps.
Pros
- Pre-attached thermal pad
- Easy installation
- Compact design
- High rating
- Effective heat dissipation
Cons
- Fixed thickness
- Smaller quantity
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The thermal pad ensures immediate contact without extra paste. It is designed for tight spaces where custom shims might be too thick. Users find it easy to apply without mess.
It only comes in one thickness which limits flexibility. If your gap is not exactly 1.2mm you may need additional shims. It is best for standard replacements.
Perfect for users who want a simple drop-in solution. It reduces steps and complexity. It is a convenient choice for quick upgrades.
Plug and Play Application
The pre-applied pad allows for immediate installation without extra thermal paste or tools.
Compact Footprint
The 20mm size ensures it fits into tight motherboard and laptop cooling zones.
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4. Copper Thermal Shim Kit – 55pcs – Best Polished Finish
Copper Thermal Shim Kit – 55pcs, 11 Thicknesses (0.1–2.0mm)
55 pieces count
11 thickness options
15mm x 15mm size
Polished copper
This kit features a polished finish that ensures smooth contact. It includes 55 pieces across 11 thicknesses. The selection is clear and easy to identify for precise gaps.
Pros
- Polished surface finish
- Good variety
- Clear labeling
- Easy selection
- Reliable material
Cons
- No adhesive
- Smaller piece count
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The polished surface helps improve thermal transfer by reducing air pockets. The thickness range covers most common needs for laptops and desktops. Users appreciate the quality of the copper.
It does not include adhesive so extra paste is required. The quantity is less than the 100pc option but still sufficient. Some users may want more pieces for multiple projects.
Ideal for those who want a premium finish on their shims. It works well for laptops and small form factor PCs. It is a great middle ground option.
Smooth Surface Finish
Polished copper reduces air pockets and improves direct contact with the heatsink.
Clear Thickness Selection
Eleven distinct thicknesses allow for precise matching without guesswork.
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5. Easycargo 4pcs 40mm – Best Large Size Option
Easycargo 4pcs 40mm Copper Pad Shim Thermal Kit
4 pieces count
0.5mm thickness
40mm x 40mm size
High conductivity
This kit provides large 40mm shims for specialized cooling tasks. The 0.5mm thickness is perfect for larger modules like TEC1-12706. It handles high heat with ease.
Pros
- Large 40mm size
- Thick and durable
- High thermal conductivity
- Versatile use
- Light weight
Cons
- Very small quantity
- Fixed thickness
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The large surface area makes it ideal for broad heat dissipation. It is lightweight yet sturdy. Users find it effective for PS3 and 3D printer cooling.
It only includes four pieces which limits multiple uses. The fixed thickness may not suit all gaps. It is best for specific single-project needs.
Great for users needing large coverage for industrial or hobby cooling. It is durable and reliable. It is a specialized tool for exact jobs.
Large Surface Coverage
The 40mm size covers wide components ensuring even cooling across large chips.
Specialized Application
Perfect for modules like TEC1-12706 and large industrial cooling needs.
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6. MECCANIXITY – Best Budget with Adhesive
MECCANIXITY Heatsink Copper Sheet Shim
5 sets count
0.3mm thickness
20mm x 20mm size
Adhesive backing
This budget kit includes adhesive for immediate use. It offers five sets of 0.3mm copper shims. The tape simplifies installation and saves time.
Pros
- Includes adhesive tape
- Low price
- Ready to use
- Simple install
- Effective cooling
Cons
- Lower rating
- Thin thickness
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It is perfect for quick fixes on laptops and desktops. The adhesive holds well for standard cooling needs. Users appreciate the simplicity and low cost.
The 0.3mm thickness is thin which may not fit larger gaps. The rating is lower than premium options but still functional. It may not be ideal for high-end builds.
Choose this for small repairs or when adhesive is needed. It is an economical entry point. It is useful for basic cooling tasks.
Included Adhesive
Thermal conductive tape is pre-applied for easy peel-and-stick installation.
Affordable Cooling
One of the most cost-effective options for basic thermal management.
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7. Easycargo 20pcs – Best Pre-Adhesive
Easycargo 20pcs Heatsink Copper Pad Shims 15x15mm+ 3M 8810
20 pieces count
0.5mm thickness
15mm x 15mm size
3M adhesive
This kit uses 3M 8810 adhesive for secure attachment. It includes 20 pieces ready to apply. The backing simplifies the process significantly.
Pros
- 3M 8810 adhesive
- Pre-applied backing
- Good quantity
- Simple install
- Reliable brand
Cons
- Fixed thickness
- Less flexible
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The 0.5mm thickness works well for common memory chips. Users like the convenience of pre-applied adhesive. It saves effort and improves reliability.
It only comes in one thickness so gaps must match exactly. It is less flexible than loose shims. You cannot adjust thickness without buying more.
Ideal for users who want ready-to-use pads. It ensures a clean install. It is a solid choice for standard replacements.
Secure Adhesive
3M 8810 tape ensures the shim stays in place under thermal stress.
Efficient Installation
No extra paste needed, allowing for quick and tidy application.
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8. PATIKIL – Best Premium Quality
PATIKIL Copper Heatsink Pad Shims
12 pieces count
0.3mm thickness
15mm x 15mm size
Bright surface
This kit offers the highest rated performance in its class. The bright surface ensures optimal contact and heat transfer. It is burr-free for a clean installation.
Pros
- High user rating
- Bright smooth surface
- No burrs
- Excellent conductivity
- Durable material
Cons
- Lower quantity
- No adhesive
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Users praise the quality of the copper and the smooth finish. The high rating reflects consistent user satisfaction. It is a premium choice for critical cooling.
The quantity is lower than others which may limit bulk use. You must apply paste separately. It is best for single or critical gaps.
Ideal for builds where quality and finish are top priorities. It ensures reliable cooling. It is a trusted pick for enthusiasts.
Premium Finish
Bright smooth surface free of burrs guarantees perfect contact with heatsinks.
Top User Trust
Highest user rating in the selection reflects consistent high-quality performance.
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9. Leviton – Best Electrical Connector Shim
Leviton Copper Shims
10 pieces count
Commercial Grade
Cam-Type Connector
Insulated
This product is designed for specific electrical connector applications. It features commercial grade quality for durability. It is ideal for industrial or heavy-duty electrical work.
Pros
- Commercial grade
- Insulated
- Durable
- High rating
- Specific application
Cons
- Specialized use
- Not general cooling
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The shims are insulated for safe use in electrical setups. The cam-type connector compatibility ensures a secure fit. Users trust the brand for professional reliability.
It is not intended for general CPU or GPU cooling. The application is narrow and specialized. It may not suit standard PC cooling needs.
Choose this for electrical connector maintenance and repair. It offers high reliability. It is a specialized tool for specific systems.
Industrial Grade Quality
Commercial grade shims ensure long-lasting performance in demanding electrical environments.
Safety Insulation
Insulators protect against phase errors and electrical hazards.
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10. M METERXITY – Best DIY Cuttable Strips
M METERXITY 3-Set Copper Shim Strip
3 sets count
6 inch length
Assorted thicknesses
Cuttable
These strips allow you to cut custom shapes for any need. They offer a range of thicknesses for DIY adjustments. The copper is polished and easy to work with.
Pros
- Customizable shapes
- Various thicknesses
- Smooth edges
- Good for crafts
- High conductivity
Cons
- Requires cutting
- Not pre-cut
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Ideal for projects requiring non-standard sizes or shapes. The brushed surface is smooth with no burrs. Users appreciate the flexibility for repairs.
You need tools to cut them which adds effort. It is less convenient than pre-cut kits. It is best for creative or custom tasks.
Great for DIY enthusiasts who need exact custom dimensions. It offers high flexibility. It is a versatile solution for repairs.
Customizable Dimensions
Cut strips to any size for unique cooling or repair applications.
DIY Friendly
Polished edges allow for easy cutting and fitting without tools.
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Buying Guide – How to Choose the Best Copper Pad Shim Kit
Selecting the right kit requires understanding your specific cooling needs and hardware constraints.
Material Quality
Look for pure copper C1100 for the highest thermal conductivity. This ensures heat moves quickly from the chip to the heatsink. Avoid inferior alloys that may overheat.
Thickness Variety
A good kit offers multiple thicknesses like 0.1mm to 2.0mm. This allows you to match exact gaps in your build. Single-thickness kits limit your options.
Size Compatibility
Measure your target area before buying. Common sizes are 15mm or 20mm squares. If you need larger coverage, check for 40mm options.
Adhesive Options
Some kits include adhesive backing which saves time. Others require you to apply thermal paste. Decide if you want a plug-and-play solution.
Surface Finish
Polished or smooth finishes reduce air pockets. Burrs can damage components or prevent contact. Choose kits with refined edges for safety.
Package Quantity
Ensure you have enough pieces for your project. A kit with 100 pieces is better for multiple repairs. Small packs may run out quickly.
Application Type
Decide if you need it for a laptop PC or industrial use. Electrical connectors require different shims than GPU cooling. Match the kit to your task.
User Ratings
Check user feedback for reliability. High ratings often indicate consistent quality. Read reviews for installation experiences and durability.
How to Use and Care for Your Copper Pad Shim Kit
First, turn off your device and disconnect all power sources. Remove the existing heatsink carefully to expose the chip. Clean both surfaces with alcohol to remove old paste or dust.
Next, select the shim that matches your gap size. If using adhesive-backed pads, peel the tape and press firmly. For non-adhesive pads, apply a thin layer of thermal paste before placement.
Reinstall the heatsink and secure it properly. Monitor temperatures after startup to ensure proper cooling. Handle copper with care to avoid scratches or bending that could affect fit.
Frequently Asked Questions
What is a copper pad shim kit used for?
These kits help fill gaps between components like GPUs or CPUs and their heatsinks. They ensure efficient heat transfer without air pockets. This improves cooling performance and system stability.
Why choose copper over other metals?
Copper has superior thermal conductivity compared to aluminum or plastic. It transfers heat quickly and reliably. This makes it ideal for high-performance electronics.
Do I need thermal paste with copper shims?
It depends on the kit. Some have adhesive that includes thermal paste. Others require you to apply it. Check the product details for specifics.
Can these shims fit my laptop?
Yes, many kits offer small sizes like 15mm or 20mm. These fit common VRAM gaps. Measure your specific gap before purchasing.
How do I clean old copper shims?
Use isopropyl alcohol and a microfiber cloth. If the surface darkens, gently sand it. This ensures good contact.
Are these shims durable?
High-quality copper shims are durable and resistant to heat. They do not degrade easily. Proper installation ensures long-term reliability.
What thickness should I choose?
Measure your gap precisely with a caliper. Common gaps range from 0.5mm to 1.5mm. Select the closest match from your kit.
Do these work for PS5 cooling?
Yes, many users use them for PS5 memory chips. Ensure the size fits the specific area. Check community guides for exact specs.
Final Thoughts on Choosing the Best Copper Pad Shim Kit
This guide reviewed ten excellent options for cooling copper shims. The Easycargo 100pc kit stands out for its variety. The PATIKIL and MECCANIXITY kits offer great value for specific needs.
Prioritize thickness variety and material quality for the best results. Match the size to your specific hardware gaps. Consider adhesive options to simplify installation.
Always check current availability before purchasing. Prices and stock may change. Choose a kit that fits your budget and cooling goals.