Application Type Bond, Seal, Hold, Mount 1 Part or 2 Part 1 Part Material Form Foam Tape Substrate Vinyl, Foam Manufacturer 3M Chemistry Acrylic, Vinyl Cure Method Pressure Sensitive Color Black Relative Solvent Resistance Chemical Resistance: Hydrocarbon solvent High Temperature Resistance (°C) 66, 93 Density (g/cm³) 0.320 Key Specifications TSCA
Technical Data for 3M 4408
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
- Tape - Foam Tape
- Other - Vinyl
- Pressure Sensitive (min) - Pressure Sensitive
- TSCA (Toxic Substances Control Act) - TSCA
Application Temperature (°F) 70 to 100
Shear Strength (psi) 500 (g), 125 (g) Test Method Tensile Strength (psi) 60 Test Method
UV Resistance UV resistance High Temperature Resistance (°C) 66, 93
Dielectric Strength (V/mil) 50 Thermal Conductivity (W/m°K) 0.06
Density (g/cm³) 0.320
Shelf Life Details 18 months from date of manufacture when stored in the original carton at 70°F(21°C) & 50 % Relative Humidity Shelf Life Temperature (°F) 70 Shelf Life Type From date of manufacture Shelf Life (mon) 18
Best Practices for 3M 4408
To obtain optimum adhesion, the bonding surfaces must be clean, dry and well unified. Some typical surface cleaning solvents are isopropyl alcohol and water or heptane.**Note: Be sure to follow the manufacturer’s precautions and directions for use when working with solvents.
Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application pressure develops better adhesive contact & thus improves bond strength.
Ideal tape application temperature range is 70°F to 100°F (21°C to 38°C). Initial tape application to surfaces at temperatures below 50°F (10°C) is not recommended because the adhesive becomes too firm to adhere readily. However once properly applied low temperature holding is generally satisfactory.
Comparable Materials for 3M 4408
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Tensile Strength Test Methods
|Tensile Strength||Test Temperature||Test Method|
|60 psi||22°C||(“T” Block) 1 in2 (6.45 cm2) Jaw Speed 2 in/min (50 mm/min), Adhesive strength exceeds foam strength|
Shear Strength Test Methods
|Shear Strength||Type||Test Time||Test Temperature||Test Method|
|500 (g)||Static shear strength||360,000 sec||22°C||As measured by static shear weight held for 100 hr, 1/2 sq.in overlap|
|125 (g)||Static shear strength||360,000 sec||49°C||As measured by static shear weight held for 100 hr, 1/2 sq.in overlap|