3M 3M 420 Conductive Aluminium Tape 0.17mm, W.25mm, L.33m

  • RS Stock No. 144-4027
  • Mfr. Part No. 420 25MMX33M
  • Brand 3M
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): US
Product Details

3M™ Lead Foil Tape 420 Silver 25 mm x 33 m

The 3M 420 is a thermally conductive and electrically smooth Lead foil tape featuring an rubber adhesive and an easy to apply 4 mm soft lead backing. Used for electroplating or as a radiation barrier, but due to its makeup it can be used for weighting and balancing objects. The lead foil tape can be burnished fully covering the adhesive allowing full contact to the metal base. This metal to metal contact results in an overall electrical continuation path.


The soft lead of the 3M 420 Foil Tape is very conformable resulting it being adhered to uneven surfaces. Highly conductive and strong acid resistance makes it ideal for electroplating and as a radiation barrier. Being highly conformable and pliable the tape can be formed into detailed and intricate shapes or patterns.

Features and Benefits

Conformable tape resists flame, moisture, weather, UV degradation, and many chemicals used in electroplating and anodizing processes

The rubber-based adhesive bonds well a variety of surface, including most metals

Performs over a wide variety of temperatures

Liner allows tape to be die-cut into specific shapes for assembly and manufacturing processes

Benefits of choosing 3M Aluminium Foil Tape

Hot and cold temperature versatility. 3M foil tape works in temperatures to which other tapes can diminish. Performing in cold conditions allows this 3M tape to be a market leader, as other tapes see the adhesive harden and begin to lose sticking strength. On the contrary, extreme heat can melt adhesives of tapes, but not the 3M foil tape making it versatile for most applications.

A Rubber Adhesive backing. This 3M lead foil tape is coated in a rubber adhesive, with an easy release film liner. The rubber adhesive secures to a variety of difficult subjects whilst maintaining a strong and reliable bond.

Longevity of foil tape. This tape is ideally used for electroplating or as a radiation barrier in applications where it needs to be conductive both thermally and electrically. Rubber adhesive provides a strong, resistant from flames, UV light, chemicals and radiation.

Attribute Value
Total Thickness 0.17mm
Foil Thickness 0.09mm
Width 25mm
Length 33m
Adhesion Strength 4.9 N/cm
Adhesive Material Rubber
Tensile Strength 35N/cm
Conductivity Conductive
Maximum Temperature Resistance +106°C
Minimum Temperature Resistance -54°C
Model Number 3M 420
34 In stock for FREE next working day delivery
Price Each
£ 73.70
(exc. VAT)
£ 88.44
(inc. VAT)
Per unit
1 - 5
6 - 14
15 +
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