3M VHB Tape 4949 Datasheet 3M VHB Tape 4949

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  • Description for 3M VHB Tape 4949

    • Black • Interior bonding applications • Exterior bonding applications • Replace spot welds • Excellent solvent resistance. • Replace liquid adhesives • Replace rivets • High Tensile • High shear • Excellent durability.

    *See Terms of Use Below

    Brand VHB
    Chemical Resistance Chemical Resistance: Excellent solvent resistance, Chemical Resistance: Very good plasticizer resistance
    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Tape
    Substrate Aluminum, Cermaic, Glass, Metal, ABS, Polycarbonate, Rigid PVC, Enameled Steel, Stainless Steel, Galvanized Steel, Epoxy, Galvanized Steel, PBT, Plastic, Steel
    Industry General Purpose, Many interior bonding applications, Many exterior bonding applications, Replace rivets
    Manufacturer 3M
    Chemistry Acrylic foam
    Cure Method Pressure sensitive
    Cure Temperature (°C) 20 to 25 Room Temperature
    Cure Time (min) 20, 1,440, 4,320
    Color Black
    Total Thickness (mm) 1.143
    High Temperature Resistance (°C) 93, 149
    Low Temperature Resistance (°C) -35
    Stress Relief Stress relaxing
    Durability Excellent durability
    Density (g/cm³) 50 (Ib/ft3)
    Key Specifications UL 746C

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
20 to 25°C Room Temperature 50% of ultimate bond strength will be achieved
Cure Time Test Methods
Cure Time Test Method
20 min 50% of ultimate bond strength will be achieved
1,440 min 90% of ultimate bond strength will be achieved
4,320 min 100% of ultimate bond strength will be achieved
Peel Strength Test Methods
Peel Strength Type Cure Time Substrate Test Temperature Test Method
High
0 piw 25 (lb/in)
Tensile Strength Test Methods
Tensile Strength Type Cure Time Substrate Test Temperature Test Method
High
140 (lb/in2 )
Shear Strength Test Methods
Shear Strength Type Cure Time Substrate Test Time Test Temperature Test Method
High
80 (lb/in 2) Dynamic Overlap Shear Strength 4,320 min Stainless Steel 25°C ASTM D-1002 - To stainless steel, room temperature, 1 in2 (6.45 cm2), jaw speed 0.5 in/min (12.7 mm/min) Peak force to separate is measured. 72 hour dwell.
1500 (grams) Static Shear Strength Stainless Steel 600,000 sec 22°C ASTM D3654 - To stainless steel, tested at various temperatures and gram loadings. 0.5 in2 (3.22 cm2). Will hold listed weight for 10,000 minutes (approximately 7 days). Conversion: 1500 g/0.5 in2 equals 6.6 lb/in2, 500 g/0.5 in2 = 2.2 lb/in2.
500 (grams) Static Shear Strength Stainless Steel 600,000 sec 93°C ASTM D3654 - To stainless steel, tested at various temperatures and gram loadings. 0.5 in2 (3.22 cm2). Will hold listed weight for 10,000 minutes (approximately 7 days). Conversion: 1500 g/0.5 in2 equals 6.6 lb/in2, 500 g/0.5 in2 = 2.2 lb/in2.
500 (grams) Static Shear Strength Stainless Steel 600,000 sec 66°C ASTM D3654 - To stainless steel, tested at various temperatures and gram loadings. 0.5 in2 (3.22 cm2). Will hold listed weight for 10,000 minutes (approximately 7 days). Conversion: 1500 g/0.5 in2 equals 6.6 lb/in2, 500 g/0.5 in2 = 2.2 lb/in2.
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
93°C Long Term Temperature Tolerance - Maximum temperature where tape supports at least 250 g load per 0.5 in2 in static shear for 10,000 minutes. (Represents continuous exposure for days or weeks)
149°C Short Term Temperature Tolerance - No change in room temperature dynamic shear properties following 4 hours conditioning at indicated temperature with 100 g/static load. (Represents minutes, hours in a process type temperature exposure).