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โอริงขาวดำ
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Sealing Solutions through innovation
- High temperature stability
- Ultimate chemical resistance
- Outstanding mechanical properties
- FDA, USP Class VI & 3A compliant
- O-rings & custom parts
- Quality assured to ISO9001 & AS9100
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Perlast® for Food & Pharmaceutical Applications
Precision Polymer Engineering was early to recognise the limitations of traditional sealing materials in the pharmaceutical, food and biochemistry industries. There is an increasing demand for FDA-compliant, chemically resistant seals for use in high temperature processing, aggressive media or in practices such as Clean in Place (CIP) and Steam in Place (SIP). |
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| Three Perlast® grades enable perfluoroelastomers to be used in a wide range of applications ranging from standard sized O-rings to specialist hygienic and inflatable seals. |
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Manufacturers of process equipment can now extend the operating capability of their original equipment by upgrading their seals, without the need for expensive component redesigns. Lower overall cost of ownership can be achieved through a combination of increased seal life and reduced process downtime.
For more information see our 'Guide to elastomer seals for pharma, food & water' which can be
downloaded from our website: www.prepol.com |
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| Perlast® FDA Grades |
G60S |
G75S |
G80S |
| Colour |
White |
White |
White |
| Hardness (°IRHD) |
60 |
75 |
80 |
| Maximum Temperature (ºC) |
260 |
310 |
260 |
| Tensile Strength (Mpa) |
14.1 |
19.0 |
18.1 |
| Elongation at Break (%) |
155 |
237 |
130 |
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Perlast® for high temperature capability
Precision Polymer Engineering has expanded the scope for perfluoroelastomer seals in high temperature applications with the development of Perlast® G75B. This 78 °IRHD perfluoroelastomer offers high temperature capability combined with increased chemical resistance over other perfluoroelastomers. |
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Perlast® G75B can be used in applications with temperatures ranging from -15°C to +325°C (+5°F to +617°F). In addition to excellent chemical and temperature resistance and very good mechanical properties, this acid resistant perfluoroelastomer has low permeability. As a result it is less prone to swelling, leading to extended in-service performance in valves and pumps.
Material datasheets can be downloaded from our website: www.perlast.com
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Perlast® for Chemical Compatibility
The unique cross-linking system employed in all Perlast® material grades ensures compatibility against virtually all chemicals. The molecular structure of Perlast® perfluoroelastomers is very similar to PTFE providing excellent thermal stability and chemical resistance.With some competitor perfluoroelastomers, there is a trade-off between high temperature performance and chemical resistance. The range of Perlast® perfluoroelastomers combines excellent chemical resistance with thermal stability up to +325°C. |
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This enables users to streamline the material selection process and in many cases to rationalise onto a single grade across all applications.
Perlast® Standard Grades
| Grade |
Description |
Colour |
Hard-
ness
(°IRHD) |
Min
temp
|
Max
Operating
Temp |
| G75B |
General purpose,
high temperature grade |
Black |
78
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-15ºC/+5ºF |
+325ºC/+617ºF |
| G75H |
High temperature grade |
White |
74
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-15ºC/+5ºF |
+320ºC/+608ºF |
| G75S |
Food/Pharma grade – FDA,
USP Class VI & 3A |
White |
75
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-15ºC/+5ºF |
+310ºC/+590ºF |
| G80A |
Chemical resistant grade |
Black |
80
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-15ºC/+5ºF |
+260ºC/+500ºF |
Perlast® Special Grades
| Grade |
Description |
Colour |
Hard-
ness
(°IRHD) |
Min
temp |
Max
Operating
Temp |
| G60A |
General purpose grade |
Black |
60 |
-15ºC/+5ºF |
+260ºC/+500ºF |
| G70A |
General purpose grade |
Black |
70 |
-15ºC/+5ºF |
+260ºC/+500ºF |
| G90A |
General purpose grade |
Black |
90 |
-10ºC/+14ºF |
+260ºC/+500ºF |
| G75G |
Colour-coded grade |
Green |
75 |
-15ºC/+5ºF |
+310ºC/+590ºF |
| G60S |
Food/pharma grade – FDA & FCN |
White |
60 |
-15ºC/+5ºF |
+260ºC/+500ºF |
| G80S |
Food/pharma grade – FDA & FCN |
White |
80 |
-15ºC/+5ºF |
+260ºC/+500ºF |
| G71H |
PTFE blend for improved dynamic performance |
White |
70 |
-15ºC/+5ºF |
+310ºC/+590ºF |
| G81T |
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Black |
80 |
-15ºC/+5ºF |
+310ºC/+590ºF |
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