Thin Caliper with Long-Term High Dimensional Strength
The strong yet thin backing of 3M™ Polyester Tape 8429 is ideal for demanding applications that require high tensile strength without the bulk. In addition, the stiff polyester provides additional abrasion protection and makes it less likely to curl or fold over on itself. The yellow color makes it easily visible for applications where the splice needs to be detected. The rubber adhesive sticks well to irregular surfaces, is resistant to many chemicals and solvents, and features high shear strength. The tape remains flexible at -60°F (-50°C) and is dimensionally stable up to 300°F (149°C).
Recommended Applications
- Splicing of photographic leader and film
- Separation of dissimilar metals
- Fabric splicing
- Sealing, labeling and protecting
- Defect marking
- End tabbing
- Repairing and reinforcing
Bringing Better Ideas to the Surface through Science and Innovation
In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.
| Product |
Color |
Adhesive
Type |
Backing
Material |
Backing
Thickness
mils (mm) |
Total
Thickness
mils (mm) |
Adhesion
to Steel
oz./in.
(N/100mm) |
Tensile
Strength
lb./in.
(N/100mm) |
Elongation
at Break % |
Temperature
Range
°F (°C) |
Comments |
| Based on ASTM Test Method: |
D-3652 |
D-3652 |
D-3330 |
D-3759 |
D-3759 |
| Photo Film Splicing Tapes |
| 8421 |
White |
Rubber |
Polyester |
1.4
(0.04) |
2.5
(0.06) |
50
(54) |
43
(754) |
140 |
-60 to 300
(-50 to 150) |
Photo film splicing |
| 8422 |
Black |
Rubber |
Polyester |
1.2
(0.04) |
2.5
(0.06) |
50
(54) |
43
(754) |
140 |
-60 to 300
(-50 to 150) |
Photo film splicing |
| 8429 |
Yellow |
Rubber |
Polyester |
2.0
(0.05) |
3.2
(0.08) |
69
(75) |
54
(948) |
130 |
-60 to 300
(-50 to 150) |
Photo film splicing |
| 3M™ Polyester Tapes |
