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3M Thermally Conductive Acrylic Interface Pad 5590H vs Bergquist (Henkel) Bergquist Gap Pad TGP HC3000: Comparison
3M Thermally Conductive Acrylic Interface vs Bergquist (Henkel) Bergquist Gap Pad TGP: the thermal conductivity difference
These two are close on paper, and thermal conductivity is the only measure that separates them at all: 3M Thermally Conductive Acrylic Interface 2.08 W/mK against Bergquist (Henkel) Bergquist Gap Pad TGP 3.0 W/mK. There is a split on reapplication interval as well, No reapplication needed; self-adhesive one-time application on the 3M Thermally Conductive Acrylic Interface versus No reapplication needed; reusable silicone sheet on the Bergquist (Henkel) Bergquist Gap Pad TGP. They differ on conductivity source too, https://multimedia.3m.com/mws/media/920112O/3m-thermally-conductive-acrylic-interface-pad-5590h-technical-data-sheet.pdf on the 3M Thermally Conductive Acrylic Interface versus https://next.henkel-adhesives.com/us/en/products/thermal-management-materials/central-pdp.html/bergquist-gap-pad-tgp-hc3000/112215IB.html on the Bergquist (Henkel) Bergquist Gap Pad TGP.
Who each one is for
The 3M Thermally Conductive Acrylic Interface is the one to take for silicone-sensitive assemblies near optics, displays or connectors and power electronics and battery gap filling, though it is not the pick for high-end GPU memory or VRM cooling. Avoid it for builds where silicone pads are acceptable and higher conductivity is wanted. Buy the Bergquist (Henkel) Bergquist Gap Pad TGP for general electronics gap filling and mainstream CPU/GPU, though it is not built for high-power dies needing >5 W/mK. Our rating of the 3M Thermally Conductive Acrylic Interface (6.6/10): an industrial acrylic interface pad from an established materials manufacturer, aimed at OEM and repair use rather than enthusiast builds. Our rating of the Bergquist (Henkel) Bergquist Gap Pad TGP (6.3/10): an industrial gap pad from Henkel's Bergquist line, reliable for OEM applications.
Frequently asked questions
Do the 3M Thermally Conductive Acrylic Interface and Bergquist (Henkel) Bergquist Gap Pad TGP differ on compound type?
Yes. Compound Type reads Acrylic Pad on the 3M Thermally Conductive Acrylic Interface versus Silicone-Based Pad on the Bergquist (Henkel) Bergquist Gap Pad TGP.
Is the Electrical Conductivity the same on the 3M Thermally Conductive Acrylic Interface and Bergquist (Henkel) Bergquist Gap Pad TGP?
It is. Both are listed at Insulating, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 3M
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Bergquist (Henkel)
Compound Type
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Acrylic Pad
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Silicone-Based Pad
Model
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 5590H
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Gap Pad TGP HC3000
Thermal Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- 2.08 W/mK (ASTM D5470)
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- 3.0 W/mKBest
Electrical Conductivity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Insulating
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Insulating
Package Size
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Sheets and die-cut shapes, 0.5/1.0/1.2/1.5/2.0mm thick
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- 8 x 16in sheet, 0.25mm-2mm thickness options
Recommended Use
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Battery cooling, power electronics and HMI displays (general electronics gap filling)
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Mainstream CPU/GPU and general electronics gap filling
Reapplication Interval
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- No reapplication needed; self-adhesive one-time application
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- No reapplication needed; reusable silicone sheet
Safety Notes
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Non-conductive acrylic pad; no special handling precautions required
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Non-conductive silicone pad; no special handling precautions required
Conductivity Source
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- https://multimedia.3m.com/mws/media/920112O/3m-thermally-conductive-acrylic-interface-pad-5590h-technical-data-sheet.pdf
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- https://next.henkel-adhesives.com/us/en/products/thermal-management-materials/central-pdp.html/bergquist-gap-pad-tgp-hc3000/112215IB.html
Viscosity
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Firm, tacky acrylic polymer sheet
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Soft, high-compliance silicone sheet
Paste Segment
- 3M Thermally Conductive Acrylic Interface Pad 5590H
- Pad
- Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
- Pad
Which one should you pick?
Choose 3M Thermally Conductive Acrylic Interface Pad 5590H if you already have it on hand or find it at a lower price.
Choose Bergquist (Henkel) Bergquist Gap Pad TGP HC3000 if you want the higher thermal conductivity (3.0 W/mK vs 2.08 W/mK (ASTM D5470)).
Price comparison
| Retailer | 3M Thermally Conductive Acrylic Interface Pad 5590H | Bergquist (Henkel) Bergquist Gap Pad TGP HC3000 |
|---|---|---|
| Amazon | View on Amazon | View on Amazon |
| Newark | View on Newark |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
3M Thermally Conductive Acrylic Interface Pad 5590H
6.6 / 10 Expert Rating
An industrial acrylic interface pad from an established materials manufacturer, aimed at OEM and repair use rather than enthusiast builds.
Bergquist (Henkel) Bergquist Gap Pad TGP HC3000
6.3 / 10 Expert Rating
An industrial gap pad from Henkel's Bergquist line, reliable for OEM applications.




