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3M 4950
3M VHB™ 45mil Firm White

General Information
3M 4950 is a (VHB™ ), firm acrylic foam tape that is used for bonding a variety of substrates. 4950 is one of two VHB™ go-to items. It is used over the 4941 family when firmness is preferred to conformability. The 4950 family has general purpose adhesive on both sides of a firm foam. It is typically used on glass, metal and high surface energy plastic substrates. In many instances it can replace rivets, spot welds, liquid adhesives and other permanent fasteners.
Backing Adhesive
(unwind)		 Thickness
(total)		 Liner Type
(outer)
Acrylic Foam Acrylic 45.00 mil Paper (3 mil, 54# densified kraft printed)

Adhesion to Steel
180° Peel		 adhesion to steel 180° peel - liner side Tensile Strength Elongation Percent
400.00 oz/in 400.00 oz/in 140.00 lbs/in  

Min Application
Temp		 Min Service
Temp		 Max Short-Term
Temp		 Max Long-Term
Temp
50 °F -40 °F 300 °F 200 °F
Adhesive Tape Features
  • Low outgassing
  • General purpose acrylic adhesive bonds to most higher surface energy substrates including metal, glass, and high surface energy plastics
  • Firm acrylic foam provides the highest level of foam strength in the 3M™ VHB™ family
  • Viscoelastic acrylic gives foam energy absorbing and stress relaxing properties
  • Acrylic chemistry provides outstanding durability and excellent solvent and moisture resistance with some moderate resistance to chemicals
  • UL Recognition 746C
Adhesive Tape Applications
  • Bonds aluminum skin to steel support in trucks, vans & ambulances
  • Mounts architectural signs to frames
  • Can replace rivets, spot welds, liquid adhesives,permanent fasteners
  • Bonding a variety of substrates, including most metals, glass and high surface energy plastics.
  • Attach stiffener in air conditioners, office furniture, and telecommunications equipment
Adhesive Tape Markets Served
  • Automotive
  • Truck and trailer body
  • Commercial printing
  • Industrial
  • Construction
  • Electronics/Electrical
Adhesive Tape Colors
  • White

Comparable products

3M 4950 View Datasheet
3M VHB™ 45mil Firm White
Backing Adhesive Thickness Adhesion
 Acrylic Foam   Acrylic   45.00mil   400.00oz/in 

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