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PREPERM® RF-materials are available in different shapes and sizes. Login to Premix technical centre for product information and processing instructions.

PREPERM® Stock shapes

PREPERM® stock shapes are designed to be used for machining and prototyping. They are available as sheets and rods of different dimensions, from small plaques to a diameter of 50 mm.

Check the available products and order through our Webshop!

Standard sheet dimensions

Length [mm] Width [mm] Thickness [mm]
60 60 2
100 100 3
300 150 3
400 300 6
400 300 12
400 320 40

Standard rod dimensions

Length [mm] Diameter [mm]
1000 10
1000 15
1000 20
10 30
1000 30
500 50

PREPERM® Components

Extremely low losses, very low water absorption and good temperature resistance. Combining these properties with cost-efficiency makes PREPERM® screws, nuts and washers a very competitive alternative to PEI or PEEK.

PREPERM® components can be used in RF filters, RF combiners, antennas, or wherever you need low-loss dielectric fasteners.

Check the availability of our screws, nuts and washers from our Webshop!


Screw dimensions

drive size
Recommended torsional torque [N*m]
PPE-M3x8-2-T10  M3  8  5.5  2  1  T10 0.15-0.2
PPE-M3x8-3-T10 M3 8 5.5 3 1.4 T10 0.15-0.2
PPE-M3x10-3-T10  M3  10  5.5  3  1.4  T10 0.15-0.2
PPE-M3x12-3-T10  M3  12  5.5  3  1.4  T10 0.15-0.2
PPE-M4x12-4-T10 M4 12 7.0 4 1.7 T10 0.3-0.4
PPE-M4x14-4-T10 M4 14 7.0 4 1.7 T10 0.3-0.4
Male thread tolerance range 6 g

Nut dimensions

m [mm] s [mm] Recommended torsional torque [N·m]
PPE-M3x2.3-Nut M3 2.3 5.5 0.2
PPE-M4x3.0-Nut M4 3.0 7.0 0.3
Female thread tolerance range 6H

Washer dimensions

PPE-3x6x1.0-Washer  3.1  6.1  1.0
PPE-3x6x1.5-Washer 3.1 6.1 1.5
PPE-4x9x1.5-Washer 4.2 9.0 1.5



PREPERM® Filaments for 3D printing

PREPERM® 3D filaments are good for quick prototyping when you want to validate a new concept. You can create structures which are impossible to make with any other manufacturing method!

The dielectric constant of our filaments range from 3 up to 10. They are ABS-based and can be printed with conventional FDM printers. The PREPERM® 3D filaments come in 750 g spools with a dimension of 1.75 mm.

Check out the available filament grades and order from our Webshop!


PREPERM® Technical Center

For more detailed technical information on our products and materials, please log into our Technical Center! If you don't have an account yet, please ask for one.

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Did not find the shape or size you were looking for? In that case send your message even sooner. Our sales team is happy to serve you for special material requests.