3M™ Double Coated Urethane Foam Tapes are conformable foams that offer high shear strength with a high temperature holding acrylic adhesive system for bonding to various types of surfaces for mounting, joining and holding.
FEATURES
The natural colored urethane foam tape products vary in color from white to light The color will change to light yellow upon exposure to sunlight (ultraviolet radiation). This color change is normal and does not affect tape performance.
3M™Double Coated Urethane Foam Tape 4026 is available in roll form and diecut Die-cut pieces of 3M tape 4026 is available in 3/4″ or 1″ squares, either individual pieces double linered with an extended liner on one side or in pads of 48 squares.
APPLICATION
Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application pressure helps develop better adhesive contact and improve bond
To obtain optimum adhesion, the bonding surfaces must be clean, dry and well unified. Typical surface cleaning solvents are isopropyl alcohol* and water (rubbing alcohol) or
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.
Typical Physical Properties
Attribute Name
Value
Color
Natural
Adhesive Type
100
Foam Density
290 kg/m³ (18 lb/ft³)
Adhesive Carrier
Polyurethane Foam
Attribute Name
Value
Thickness Tolerance
1.142 to 2.03 mm (45 to 80 mil)
Thickness: Nominal
1.6 mm (62.5 mil)
Liner Thickness
0.08 mm (3 mil)
Primary Liner Color
Green Plaid
Typical Performance Characteristics
Temperature
Value
22 °C (72 °F)
2,000 g
49 °C (120 °F)
1,000 g
66 °C (150 °F)
1,000 g
93 °C (200 °F)
750 g
Attribute Name
Test Method
Value
Normal Tensile
ASTM D897
275 kPa (40 lb/in²) ¹
Attribute Name
Temperature
Value
Short Term Temperature Resistance
193 °C (380 °F) ¹
Long Term Temperature Resistance
104 °C (220 °F) ²
Cold Flex
-30 °C (-20 °F)
No cracking when flexed around a 1/4
in (6.4 mm mandrel).
Attribute Name
Value
Elongation at Break
100 %
Tensile Strength
1240 kPa (180 lb/in²)
Typical Environmental Performance
Attribute Name
Value
Solvent Resistance
No apparent degradation when exposed to splash tests of
most hydrocarbon solvents.
UV Resistance
No apparent degradation when exposed to 7 days in U.V.
