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Description for 3M 420
Backed with a rubber adhesive, offering excellent conformability in a variety of application conditions, indoors and out.Application Type Bond 1 Part or 2 Part 1-Part Material Form Tape Substrate Steel Industry Electroplating, X-ray plate masking Manufacturer 3M Chemistry Rubber Cure Method Pressure Sensitive Application Temperature (°F) >32 Color Dark silver High Temperature Resistance (°C) 107 Low Temperature Resistance (°C) -51 -
Technical Data for 3M 420
Overview
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 1-Part
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Material Form
- Tape
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Substrate
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Industry
- Sporting Equipment - Add weight (balance) to equipment parts (golf clubs, tennis rackets, etc.)
- Electronics - Electroplating
- Industrial
- Medical - X-ray plate masking
- Other - excellent conformability in a variety of indoors and outdoor applications conditions, Radiation barrier, Moisture barrier, Chemical milling, Maskant during paint stripping
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Chemistry
- Other - Rubber
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Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
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Color
- Gray - Dark silver
Specifications
Cure Specs
Application Temperature (°F) >32 Bond Strength
General Bond Strength (psi) 45 (oz./in.) Test Method Tensile Strength (psi) 20 (lbs./in.) Test Method Material Resistance
High Temperature Resistance (°C) 107 Low Temperature Resistance (°C) -51 Conductivity
Electrical Conductivity (mhos/cm) Electrically conductive Thermal Conductivity (W/m°K) Thermally conductive Hardness
Elongation (%) 12 Test Method Business Information
Shelf Life Details To obtain best performance, use this product within 18 months from date of manufacture.; Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% R.H. in the original carton. Shelf Life Temperature (°F) 60 to 80 Shelf Life Type From date of manufacture Shelf Life (mon) 18 -
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Best Practices for 3M 420
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Surface Preparation
Best results are obtained when applied to a clean dry surface above 32°F (0°C). Also, by “feathering” the edges – rubbing the tape down with a smooth-edged plastic piece (or similar object) – the tape can be made to better conform to the substrate. This is especially important if the tape is to be used as a “thief” in electroplating where the edges must fully contact the metal base.
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Comparable Materials for 3M 420
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