Products

3M™ VHB™ Tape 4941

Brands: VHB™

Package size: Standard Length 32.9 m

Minimum Width 6.4 mm

Maximum Width 1219 mm

Core Size (ID) 76.2 mm (3 in)

Shelf Life: 24 months

3M™ VHB™ Tape 4941 is a 0.045 inch (1.1 mm) thick gray double-sided acrylic foam tape with paper liner. The multi-purpose acrylic adhesive on both sides bonds to a broad range of high and medium surface energy substrates including metals, glass and a wide variety of paints and plastics as well asPlasticized Vinyl. The conformable foam provides good contact between substrates even when they are slightly mismatched. 3M™ VHB™ Tape 4941 is part of the 4941 tape family. Each product in this family has multi-purpose acrylic adhesive and conformable foam but varies in thickness, color and liner type.

Product Features

  • Fast and easy-to-use permanent bonding method provides high strength and long-term durability
  • Virtually invisible fastening keeps surfaces smooth
  • Can replace mechanical fasteners (rivets, welds, screws) or liquid adhesives
  • Gray, 0.045 in (1.1 mm), multi-purpose adhesive and conformable acrylic foam core offers a good balance of strength and conformability
  • Eliminate drilling, grinding, refinishing, screwing, welding and associated clean-up
  • Creates a permanent seal against water, moisture and more
  • Pressure sensitive adhesive bonds on contact to provide immediate handling strength
  • Allows the use of thinner, lighter weight and dissimilar materials
  • UL GREENGUARD and UL GREENGUARD Gold Certified, contributing to LEED Credit

Recommended Applications

  • Decorative material and trim
  • Nameplates and logos
  • Electronic displays
  • Panel to frame
  • Stiffener to panel

 

Typical Physical Properties

Attribute Name Test Method Value
Color   Gray
Adhesive Type   Multi-Purpose Acrylic
Foam Type   Conformable Acrylic Foam
Density ASTM D3574 720 kg/m³ (45 lb/ft³) ¹
Total Tape Thickness ASTM D3652 1.1 mm (0.045 in) (45 mil)
Thickness Tolerance   ±10 %

¹ Foam with adhesive

Attribute Name Value
Liner DK Paper
Liner Thickness 0.08 mm (3 mil) (0.003 in)
Primary Liner Color White (printed)

Typical Performance Characteristics

Temperature: 23 °C (73 °F) Dwell Time: 72 h

Attribute Name Test Method Substrate Backing Value
90° Peel Adhesion ASTM D3330 Stainless Steel 5 mil Aluminum Foil 39 N/cm (22 lb/in) ¹
Normal Tensile ASTM D897 Aluminum   590 kPa (85 lb/in²) ²
Overlap Shear

Strength

ASTM D1002, ISO

4587

Stainless Steel   480 kPa (70 lb/in²) ³

¹ 304 mm/min (12 in/min)

² 6.45 cm² (1 in²), Jaw Speed 51 mm/min (2 in/min)

³ 6.45 cm² (1 in²), Jaw Speed 12.7 mm/min (0.5 in/min)

Static Shear

Substrate: Stainless Steel Test Method: ASTM D3654

Temperature Value
23 °C (73 °F) 1,000 g ¹
66 °C (150 °F) 500 g ¹
93 °C (200 °F) 500 g ¹

¹ Tested at various temperatures and gram loadings. 3.23 cm² (0.5 in²). Will hold listed weight for 10,000 minutes (approximately 7 day).

Attribute Name Value
Minimum Application Temperature 15 °C (60 °F)
Short Term Temperature Resistance 149 °C (300 °F) ¹
Long Term Temperature Resistance 93 °C (200 °F) ²

¹ No change in room temperature dynamic shear properties following 4 hour conditioning at indicated temperature with 100 g/static load. (Represents minutes, hour in a process type temperature exposure).

² Maximum temperature where tape supports at least 78g/cm² (500 g/in²) in static shear for 10,000 minutes. (Represents continuous exposure for day or weeks).

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