4945 - VHB™ Double Coated Acrylic Foam

3M

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FEATURES

Std Roll Length: 36.00 yards
Static Shear measured at 72°F 1/2 sq. in. loadings on stainless steel will hold 1,500 grams over 10,000 minutes ASTM D-3654
Dynamic shear to stainless steel ASTM D-1002: 80lb/sq. in
Density: 45#/ft cubed
4946 is the same product with a 5 mil clear polyethylene liner

ADVANTAGES

High tensile strength
High shear and peel adhesion
Resistant to solvents
Resistant to moisture & plasticizers
U.L. reconition
Low outgassing
UV Resistant

APPLICATIONS

Attach vinyl trim
Bond vinyl extrusions
Bond pre-painted truck & trailer skins
Replace rivets
Bonding a variety of substrates, including most metal, sealed wood and glass, as well as many plastics, composites and painted surfaces

MARKETS SERVED

Construction
Truck & Trailer body
Metal sheds

COLORS

White

GENERAL INFORMATION

4945 is a 45 mil, VHB™ double coated adhesive foam. It has a multi-purpose adhesive on both sides of a firm acrylic foam. In many cases they can replace rivets, spot welds, liquid adhesives or other permanent fasteners. It is often used to attach vinyl trim, bond vinyl extrusions or adhere pre-painted truck and trailer skins.

PRODUCT CONSTRUCTION

	Type	Mil Thickness

Backing	Acrylic Foam
Adhesive (unwind)	Acrylic
Adhesive (liner)	Acrylic
Liner Type (outer)	Paper (3 mil, 54# densified kraft printed)
Foam Cell Type	Closed
Thickness (total)		45.00

PRIMARY PHYSICAL PROPERTIES

	Unwind Side	Liner Side

Adhesion-to-Steel - 90° Peel	400.00 oz/in	400.00 oz/in
Adhesion Dynamic Shear	1280 oz/in	1280 oz/in
Adhesive Activation	Pressure
Tensile Strength	140.00 lbs/in
Testing Info: 90 degree peel: ASTM D3330; Tensile: ASTM D-897; Dynamic overlap shear ASTM D-1002

SECONDARY PHYSICAL PROPERTIES

Water Resistant	Yes
UV Resistant	Yes
Solvent Resistant	Yes
Plasticizer Resistant	Yes

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	60°F
Minimum Service Temperature	-40°F
Maximum Long-Term Temperature	300°F
Maximum Short-Term Temperature	200°F

The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.
It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.
Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.
Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.