Perlast FFKM perfluoro rubber
In the series of Perlast® FFKM elastomers are six rubber grades for O-rings and other types of rubber seals in the most challenging and critical industrial applications. Read more about the six super-materials on this page.
Betech is strategic solution partner for PPE Perlast® elastomer seals.
High-performance perfluoro rubber for challenging applications
The Perlast range of perfluoro rubber materials is at the forefront of polymer technology. Developed by PPE - Polymer Precision Engineering Ltd - the FFKM materials offer superior sealing solutions with improved performance and functionality. The strong quality is proven by 20 years of successful use in the market.
Perlast® qualities for the highest temperatures
Perlast® grades with best chemical resistance / food approval
Perlast® Grades for the lowest temperatures
For cold and extreme heat
Durable and functional seals in both extreme hot and cold temperatures.
Outstanding chemical resistance
Perfluoro rubber generally offers high chemical resistance, but Perlast grades G74S and G80A are particularly resistant to both alkaline and acidic media.
Strong mechanical properties
Mechanical properties such as tensile strength, tensile strength and settlement are very convincing.
Approved for food contact etc.
Perlast rubbers meet requirements and approvals for food contact, sanitary and medical applications: FDA, 3A 18-03 and USP Class VI.
Operates with Rapid Gas Decompression
Secure sealing materials in high-pressure applications with gas generation or aggressive gaseous media where gases can occur rapid gas decompression - RGD
Perlast can be used with advantage here
Perlast® FFKM materials have qualities and properties that make them particularly suitable for O-rings and other types of molded seals in the most challenging conditions in places as diverse as process and processing equipment in food production, aggressive chemicals, very cold or hot applications - also under high pressure - such as power generation, aircraft and satellite equipment.
Food and dairy equipment
Pharmaceutical & Biotech industry
Chemical process industry
Energy plants and supply
Aerospace and defense
Mechanical seals
Properties of Perlast materials
Perlast G77X
Hardness: 77 Sh. A
Tensile strength: 18.0 MPa
Elongation at break: 170 %
Compression set: 8 % *
Min. temperature: -15 oC *
Max temperature: +350 oC *
Outstanding temperature resistance
Specially formulated high temperature resistant perfluoroelastomer (FFKM) designed for sealing components in:
Chemical industry - Aerospace - Mechanical seals - Valves - Pumps
Perlast G75X
Hardness: 85 Sh. A
Tensile strength: 18.0 MPa
Elongation at break: 125 %
Compression set: 18 % *
Min. temperature: -15 oC *
Max temperature: +325 oC *
Perlast G74S
Hardness: 74 Sh. A
Tensile strength: 18.5 MPa
Elongation at break: 190 %
Compression set: 12 % *
Min. temperature: -15 oC *
Max temperature: +260 oC *
Perlast G80A
Hardness: 81 Sh. A
Tensile strength: 19.0 MPa
Elongation at break: 150 %
Compression set: 8 % *
Min. temperature: -15 oC *
Max temperature: +350 oC *
Perlast G75LT
Hardness: 78 Sh. A
Tensile strength: 11.0 MPa
Elongation at break: 160 %
Compression set: 17 % *
Min. temperature: -46 oC *
Max temperature: +275 oC *
Reliability at very low temperatures
Perlast® ICE G75LT offers a unique combination of excellent chemical resistance and extreme low temperature performance.
Chemical industry - Aerospace - Oil & Gas
Perlast G90LT
Hardness: 88 Sh. A
Tensile strength: 17.6 MPa
Elongation at break: 165 %
Compression set: 21 % *
Min. temperature: -46 oC *
Max temperature: +275 oC *
* Compression set is measured under the assumptions 70 hours at 200 oC. Displayed temperatures is the lowest (min) and highest (max) operating temperature.
Get an overview of Perlast super-six FFKM
This small brochure gives you a good overview of the six super-FFKM material grades in the Perlast range from PPE - Precision Polymer Engineering.
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