Raw materials

PREPERM® plastics equal proven dielectric performance and ultra-low losses up to 220 GHz.

Ultimate RF performance

Patented PREPERM® materials boost the performance of antennas and other RF components to new levels. They also provide solutions for tomorrow’s mmWave frequency demands. Our PREPERM® portfolio includes a wide range of materials to match the requirements of your application.

 

 

PREPERM® Standard Grades

The standard PREPERM® grades cover a wide range of dielectric constants, and they can be both injection molded and machined easily. These grades have very stable dielectric performance and low losses.

Dielectric constant Loss tangent
1 GHz 22 GHz 1 GHz 22 GHz
L260 2.6 2.6 0.0006 0.0021
L300 3.0 3.1 0.0005 0.0015
L335 3.35 0.0005
L380 3.8 0.0006
L440 4.4 0.0005
L570HF 5.7 0.0005
L700HF 7.0 7.0 0.0006 0.002
L900HF 9.0 0.0006
L1000HF 10.0 0.0006
L1200HF 12.0 0.0010

Looking for more detailed product or performance data? Please log in to our technical center.

PREPERM® Radome Grades

PREPERM® radome grades are designed to have excellent RF performance combined with high impact strength and moldability. They are available in black (RB) and sand (RS) colors, with different special properties such as high impact strength (HI) and flame retardancy (FR).

Dielectric constant Loss tangent
1 GHz 22 GHz 1 GHz 22 GHz
RS260 2.55 2.53 0.0005 0.0016
RS260HI 2.55 0.0007
RB260 2.55 0.0007
RB260HI 2.55 2.54 0.0007 0.0018
RS265FR 2.60 0.002

Looking for more detailed product or performance data? Please log in to our technical center.

PREPERM® High-temperature Grades

The high temperature product family is called PRERERM® PEEK. The high ɛr combined with very low dissipation factor and outstanding thermal stability makes PREPERM® PEEK an excellent material for high frequency applications when the products are used in harsh conditions.

Dielectric constant Loss tangent
1 GHz 22 GHz 1 GHz 22 GHz
PEEK700 7.0 0.002
PEEK900 9.0 0.002
PEEK1000 10 0.002
PEEK1200 12.0 0.002

Looking for more detailed product or performance data? Please log in to our technical center.

Click to see also the PREPERM® PEEK product release and blog post!

PREPERM® Flexible Grades

Flex-series materials have high elongation at break. They are typically used in films, sheet, filaments or applications that need extensive bending.

    Dielectric constant Loss tangent 
    1 GHz 22 GHz 1 GHz 22 GHz
FLX300   3.0   0.0005  
FLX460   4.6   0.0005  
PP900   9.0   0.0004  
FLX1100   11   0.001  
FLX1950   19.5   0.002  

Looking for more detailed product or performance data? Please log in to our technical center.

PREPERM® H-series

H-series is based on a different filler technology than the L-series and it provides very high permittivity up to 23.

Dielectric constant Loss tangent
1 GHz 22 GHz 1 GHz 22 GHz
H1500HF 15.0 0.001
H1700HF 17.0 0.001
H2300HF 23.0 0.002

Looking for more detailed product or performance data? Please log in to our technical center.

Looking for more colour?

To make the installation work easier for you, PREPERM® is also available in colours. Ask us for more information! 

Colored-PREPERM-samples-web

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