3M Lead Foil Tape 421, Dark Silver, 1 in x 36 yd, 6.3 mil, 9 rolls per case
3M Lead Foil Tape 421, Dark Silver, 1 in x 36 yd, 6.3 mil, 9 rolls per case
3M Lead Foil Tape 421, Dark Silver, 1 in x 36 yd, 6.3 mil, 9 rolls per case
3M Lead Foil Tape 421, Dark Silver, 1 in x 36 yd, 6.3 mil, 9 rolls per case
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3M Lead Foil Tape 421, Dark Silver, 1 in x 36 yd, 6.3 mil, 9 rolls per case

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Extended Handling May Be Required
  • Conformable tape resists flame, moisture, weather, UV degradation, and many chemicals
  • Performs over a wide variety of temperature conditions and is heat reflective
  • Heat and light reflective tape protects, insulates and enhances lighting efficiency
  • Can be die-cut into specific shapes for assembly and manufacturing processes
  • The rubber-based adhesive combined with the rugged, durable backing provides long service life
Overview
3M Lead Foil Tape 421 Is an electrically and thermally conductive tape. This highly conformable tape resists flame, moisture, weather, UV degradation, chemicals and radiation. The malleable tape can be shaped into complex or detailed patterns or die-cut into specific shapes to meet assembly and manufacturing process needs.

Pliable and Conductive Lead Tape
3M™ Lead Foil Tape 421 is a dark gray, lead foil backed tape coated with a distinct green rubber adhesive that offers good initial grab and a long-lasting bond that removes cleanly from most surfaces. It is an extremely conformable and pliable tape that can be formed into detailed and intricate shapes and patterns. The lead foil backing can be burnished to fully cover the adhesive and allow full contact of the lead foil to the metal base. This metal to metal contact results in a continuation of the electrical path, reducing build-up at the adhesive interface. This lead foil tape is formulated to be electrically and thermally conductive and carries a strong acid and base resistance, making it ideal for electroplating, as a radiation barrier or x-ray plate masking.

Application Ideas

  • Electroplating
  • Radiation barrier
  • Moisture barrier
  • Chemical milling
  • X-ray plate masking
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3M Lead Foil Tape 421, Dark Silver, 1 in x 36 yd, 6.3 mil, 9 rolls per case

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Specifications
General Information
Brand
3M™
Adhesive Type
Rubber
Country Of Origin
United States
Sold As
Case
California Residents
Proposition 65 Warning
Dimensions and Specifications
Back Side Adhesive Thickness (Metric)
0.1 mm
Backing (Carrier) Thickness (Imperial)
4 mil
Backing (Carrier) Thickness (Metric)
0.1 mm
Maximum Operating Temperature (Celsius)
107 Degree Celsius
Maximum Operating Temperature (Fahrenheit)
225 Degree Fahrenheit
Minimum Operating Temperature (Celsius)
-51 Degree Celsius
Minimum Operating Temperature (Fahrenheit)
-60 Degree Fahrenheit
Overall Length (Imperial)
36 yd
Overall Length (Metric)
32.91 m
Overall Width (Imperial)
1 in
Overall Width (Metric)
25.4 mm
Tensile Strength (Imperial)
15.0 lb/in
Tensile Strength (Metric)
263 N/100mm
Total Tape Thickness Without Liner (Imperial)
6.3 mil
Total Tape Thickness Without Liner (Metric)
0.16 mm
Overall Length Imperial
36.0
Width
6.73 in
17.1 cm
Height
6.73 in
17.1 cm
Length
13.11 in
33.3 cm
Volume
594.2 cubic inch
9737.25 cm3
Weight
19.66 lb
8.92 kg
Other Details
Elongation At Break
14.0 %
Industries
Construction
Units Per Case
9.0
Tensile Strength Imperial
15.0
Material and Composition
Backing (Carrier) Material
Lead Foil
Shelf Life
18 Month
Backing Carrier Material
Lead Foil
Color and Appearance
Product Color
Dark Silver
Resources
Datasheet
Brochures
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