Chemfilm® MR is a family of films combining the chemical inertness and universal non-stick properties of PTFE polymers with maximum conformability and heat resistance. Compare the data shown for Chemfilm MR versus other materials typically used in composite fabrication in order to understand its superior performance, particularly for complex shapes and high temperature resins.
Film Product
|
Elongation (%) |
Max Temp. (°F) |
|
Chemfilm® MR
|
450 |
600 |
| Teflon® PFA |
430 |
550 |
| Teflon® FEP |
300 |
500 |
| Tedlar® PVF |
190 |
350 |
| Halar® ECTFE |
200 |
350 |
| Kapton® Polyimide |
90 |
750 |
| Tedlar® Polyimide |
370 |
450 |
Benefits
|
- Continuous service temperature range from -200 to +315°C (-328 to 500°F)
- Can be used in intermittent service at temperatures close to or above its melting point
- Exhibits superior release qualities over the entire temperature range
- High elongation and unmatched drapability allows for superior conformability for irregular shapes
- High temperature performance for PMR-15, polyimides, PEEK and other high temperature resin systems
|
Properties
| |
Method
|
Value
|
- Tensile Strength at Break (psi)
|
ASTM D882-83 |
4,500 |
|
|
ASTM D882-83 |
400 |
|
|
ASTM D882-83 |
55,000 |
|
|
ASTM D882-83 |
1,400 |
- Resistance to Tear Initiation (psi)
|
ASTM D1004 |
500 |
- Propagating Tear Strength (lbs.)
|
ASTM D1938 |
0.10 |
|
|
ASTM D774-67 |
75 |
- Maximum Continuous Serv. Temp
|
ASTM D150 |
260°C/500°F |
|
|
30 Min 500°F |
3% Shrinkage Max |
- Coefficient of Linear Thermal Exp.
|
ASTM D696 |
5.5 x 10-5 in./in. °F |
|
Type
|
Nominal Thickness
|
Width
|
Length
|
Appropriate Square Feet Per Roll
|
MR1
|
0.001 |
48" |
500' |
2,000 |
MR2
|
0.002 |
48" |
250' |
1,000 |
Values shown are typical. Certified test reports for writing specifications are available.
Standard Colors: Red, white and natural
Perforated: Specify pattern