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3M 4941
3M VHB™ 45mil Gray Conformable

General Information
3M 4941 is a 45 mil, VHB™, double-coated adhesive foam. It is one of two 3M VHB™ core go-to items. 4941 is the main product when conformability is necessary. 3M's other go-to item when internal strength is more important than conformability is 4950. The 4941 family utilizes multi-purpose acrylic adhesive on both sides of a conformable foam. It has excellent adhesion to a broad range of high and medium surface energy substrates including metals, glass and a wide variety of plastics and plasticized vinyl. In many cases 4941 can replace rivets, spot welds, liquid adhesives or other permanent fasteners.
Backing Adhesive
(unwind)		 Thickness
(total)		 Liner Type
(outer)
Acrylic Foam Acrylic 45.00 mil Paper ( 3 mil white printed)

Adhesion to Steel
180° Peel		 adhesion to steel 180° peel - liner side Tensile Strength Elongation Percent
320.00 oz/in 320.00 oz/in 85.00 lbs/in  

Min Application
Temp		 Min Service
Temp		 Max Short-Term
Temp		 Max Long-Term
Temp
60 °F -31 °F 200 °F 300 °F
Adhesive Tape Features
  • Multipurpose medium density foam offers an economical alternative to caulks and sealants
  • Acrylic adhesive bonds to a wide range of materials including metals, glass, and high and medium surface energy plastics and paints
  • Unique adhesive has the ability to resist migration of plasticizers in vinyl substrates
  • Viscoelastic acrylic gives foam energy absorbing and stress relaxing properties
  • Conformable foam provides high strength with the capability of conforming to the irregularities of rigid substrates even when there is a slight mismatch
  • Resistant to moisture, plasticizers, solvents, UV light, and mild exposure to chemicals
  • UL Recognition 746C
  • Low outgassing properties
Adhesive Tape Applications
  • Bond muntin bars to windows
  • Bond & seal polycarbonate lens over LCD
  • Bond pre-painted metals in truck assembly
  • Mount vinyl wiring ducts and conduit channels
  • Bond & seal plastic windows to pre-painted control panels/switch gear
  • Replace rivets
  • Bonding a variety of substrates, including most metal, sealed wood and glass, as well as many plastics, composites and painted surfaces
Adhesive Tape Markets Served
  • Construction
  • Glass Manufacturing
  • Industrial
  • Aerospace
Adhesive Tape Colors
  • Gray

Comparable products

3M 4941 View Datasheet
3M VHB™ 45mil Gray Conformable
Backing Adhesive Thickness Adhesion
 Acrylic Foam   Acrylic   45.00mil   320.00oz/in 

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