4950 - VHB™ Double Coated Acrylic Foam Tape

3M

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FEATURES

Std Roll Length: 36.00 yards
General purpose adhesive
Density=50#/ft. cubed
Insulation resistance=>1 x 10 to the 6th power
U.L. recognition 746 C
Low outgassing
Static shear of 1/2 sq. in.@ 72°F=1,500 grams over 10,000 minutes

ADVANTAGES

Excellent long term holding power
High tensile strength
High shear strength
Good peel adhesion
Resistence to solvents, moisture

APPLICATIONS

Attach stiffners in airconditioners, office furniture & telecom. equipment
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.

MARKETS SERVED

Construction
Truck & Trailer body
Metal sheds
Furniture
HVAC
Telecomunications

COLORS

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 type 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.

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: Dielectric / mil :ASTM D149; Dynamic sheer:ASTM D-1002

SECONDARY PHYSICAL PROPERTIES

Water Resistant	Yes
UV Resistant	Yes
Solvent Resistant	Yes
Chemical Resistant	Yes

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	50°F
Minimum Service Temperature	-40°F
Maximum Long-Term Temperature	200°F
Maximum Short-Term Temperature	300°F
Dielectric Strength	460.00 volts

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.