Chemfilm® DF1100 is a multilayer cast PTFE film, fully fused, with one surface modified to render it receptive to many conventional adhesives, elastomers, resins and potting compounds. The surface treatment was developed to assure that its application over pure PTFE would not degrade or discolor the basic film.
After surface treatment, the PTFE film loses none of its excellent physical and electrical characteristics, except that the surface treatment results in a natural color which does not affect any of the desired properties.
Chemfilm® type DF1200 is DF1100 laminated to 2 mils of acrylic pressure sensitive adheisve.
Features
|
Benefits
|
| Cast Film |
- Uniform tensile properties in both machine and traverse direction
- Isotropic shrinkage as a function of temperature
|
| Multilayer |
- The unique bonding layer will adhere to a variety of adhesives and elastomers while the other surfaces maintain all the properties of PTFE
- Pigments and other additives may be added to individual layers to customize performance
|
| PTFE |
- Superior performance in a wide range of chemical, thermal and electrical environments
|
| Slitting |
- Available in slit widths to 1", supplied in pad rolls; minimum quantities apply
|
Typical Properties
|
Method
|
Value
|
Mechanical
- Tensile Strength (psi)
- Elongation (%)
- Elastic Modulus (psi)
- Coefficient of Friction
|
ASTM D882-54T
ASTM D882-54T
ASTM D882
ASTM D194 |
4,300
400
60,000
0.2 |
Electrical
- Dielectric Constant, 60-108 Hz
- Power/Dissipation
- Surface Resistivity
- Volume Resistivity
- Dielectric Strength (volts/mil)
- Surface Arc Resistance
|
ASTM D150
ASTM D150
ASTM D257
ASTM D257
ASTM D149
ASTM D495 |
2.0
0.009
2.0 x 1017
>1015
4,200
Does not arc |
Product Number
|
DF1100
|
DF1200
|
- Available Gauge (mil)
- Colors
- Continuous Service Temp.
|
1.0 - 5.0
On request
+500°F, -400°F
+260°C, -188°C |
1.0 - 5.0*
On request
+300°F, -100°F
+140°C, -90°C |
*Base film w/o adhesive
Values shown are typical. Certified test reports for writing specifications are available.