Application
Properties
Application
- Sealmax Style 9909 is a 100% Multi-directional Expanded PTFE (ePTFE) which is a high-performance sealing material developed to meet the critical demands of a wide range of industrial applications.
- Style 9909 exhibits consistent tensile strength in all directions, providing superior dimensional stability, excellent creep resistance and long-term sealing reliability even under dynamic conditions.
- It prevents cold flow and material relaxation over-time, making it especially suitable for load-sensitive or high-temperature flange connections and ensuring tight sealing across broad spectrum of pressure and temperature ranges.
Properties
- Style 9909 has multi-directional strength for uniform mechanical performance and enhanced sealing life.
- Expectational Chemical Resistance: Inert to virtually all corrosive chemicals (pH 0-14)
- Excellent compressibility accommodating flange and irregularities.
- Non-toxic and Non-contaminating: Suitable for high-purity and food-grade applications
- Style 9909 is FDA approved as per US FDA 21 CFR 177.1550
|
Technical Specifications
|
||||
|
SR.NO.
|
PROPERTIES
|
UNIT
|
Test Method Reference
|
Specified Values
|
|
1.
|
Density
|
gm/cm3
|
ASTM D-792
|
0.75 – 0.85
|
|
2.
|
Tensile Strength (Min.)
|
Mpa
|
ASTMD-638
|
27± 5
|
|
3.
|
Compressibility
|
%
|
ASTM F36
|
50-65%
|
|
4.
|
Recovery
|
%
|
ASTM F36
|
10-15%
|
|
5.
|
Creep relaxation (22 hrs at 100⁰C)
|
%
|
ASTM F38
|
≤ 35%
|
|
6.
|
Maintenance factor (m)
|
–
|
–
|
2.5
|
|
7.
|
Seating stress (y)
|
–
|
–
|
2800 psi
|
|
General Specifications
|
|||
|
SR.NO.
|
Parameters
|
Specifications
|
Remarks
|
|
1.
|
Material
|
100% Multi-directional Expanded PTFE
|
No fillers or pigments
|
|
2.
|
Colour
|
White
|
–
|
|
3.
|
Operating Temperature
|
–200°C to +260°C (–328°F to +500°F)
|
Short-term exposure up to 300°Cpossible
|
|
4.
|
Pressure range
|
Vacuum upto 200 bar (3000 Psi)
|
Depends on the installation situation
|
|
5.
|
Shelf Life
|
Unlimited under proper storage
|
Non-ageing material
|
|
6.
|
Available thickness
|
0.5mm to 10mm
|
–
|
|
7.
|
Available forms
|
Sheets, gaskets
|
Customized gaskets on request
|