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KLINGER Polystrat Brake Shim Sheets

For Automotive disc pad brakes application

KLINGER Polystrat are steel base, generally coated with a rubber layer on each side creating a noise damping material for disc pad brakes applications.

Polystrat BT38-21 and Polystrat BT38-20. Both are noise absorbing shims for brake disks that feature a rubber coating on both sides, which is subsequently vulcanized. Polystrat BT38-21, however, is also characterized by an additional acrylic adhesive, which is applied to the inner face of the rubber. It serves to further increase the sealing strength. Due to its higher quality, Polystrat BT38-21 is typically used by original equipment manufacturers, while BT38-20 is very popular in the after-market segment.

Polystrat is proven as the leading rubber coated steel choice in millions of vehicles. In the anti-noise Shim application for Passenger brake pads, the shim serves to reduce the noise, vibrations and harshness (NVH) resulting from the braking process.

KLINGER offers many variants of the Polystrat sheets for specific automotive brake shim applications. Please scroll down and see below.

KLINGER Polystrat SP38-01 – Noise Absorbing Shim for Disc Brakes

This KLINGER Polystrat Rubber Coated Steel provides noise absorbing shim for disc brakes with no break squeal.

Hard Steel shim with temperature- and pressure resistant rubber coating. Both sides with non-stick coating and perfect damping performance with better piston penetration.The damping material has a good resistance to fuel and brake fluid

Basis: NBR/Carbon Steel/NBR

Color: Black – Other per request.

Roll length up-to 500 m, WidthUp-to 500 mm

Areas of Application

Engines / Compressors / Brake systems / Automotive
Anti-Noise Shim application for Passenger brake pads.

Composite and Tolerances

Non-stick coating 0.010 ± 0.005 mm
Rubber, NBR 0.100 ± 0.010 mm
Cold rolled carbon steel 0.380 ± 0.020 mm
Rubber, NBR 0.100 ± 0.010 mm
Non-stick coating 0.015 ± 0.005 mm
Total 0.600 ± 0.050 mm

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KLINGER Polystrat SP38-01Datasheet

KLINGER Polystrat BT38-20 – Noise Absorbing Shim for Disc Brakes

Noise absorbing shim for disc brakes with brake squeal.

Hard Steel shim with temperature- and pressure resistant rubber coating. One-sided adhesive coating and perfect damping performance.

The damping material has a good resistance to fuel and brake fluid

Basis: NBR/Carbon Steel/NBR

Color: Black colour. Other per request.

Roll length up-to 500 m, Width Up-to 500 mm

Areas of Application

Engines / Compressors / Brake systems / Automotive
Anti-Noise Shim application for Passenger brake pads.

Composite and Tolerances

Rubber, NBR 0.100 ± 0.010 mm
Cold rolled carbon steel 0.380 ± 0.020 mm
Rubber, NBR 0.100 ± 0.010 mm
Total 0.580 ± 0.040 mm

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KLINGER Polystrat BT38-20 Datasheet

More KLINGER Polystrat Automotive Brake Shim Materials

Each rubber coated steel material has specific characteristics. Please download datasheets to learn more.

KLINGER Polystrat SP38-21

Tolerances and Composition

Non-stick coating: 0.010 ± 0.005 mm
Rubber, NBR: 0.100 ± 0.010 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Release paper, siliconized: 0.100 ± 0.020 mm
Total without release paper: without release paper: 0.660 ± 0.0550 mm

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KLINGER Polystrat LC38-40

Tolerances and Composition

Rubber, NBR: 0.025 ± 0.005 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Release paper, siliconized: 0.100 ± 0.020 mm
Total without release paper: 0.485 ± 0.035 mm

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KLINGER Polystrat BT38-10

Tolerances and Composition

Rubber, NBR: 0.065 ± 0.005 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Release paper, siliconized: 0.100 ± 0.020 mm
Total without release paper: without release paper: 0.560 ± 0.040 mm

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KLINGER Polystrat BT38-21

Tolerances and Composition

Rubber, NBR: 0.100 ± 0.010 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Release paper, siliconized: 0.100 ± 0.020 mm
Total without release paper: without release paper: 0.660 ± 0.050 mm

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KLINGER Polystrat BT38-22

Tolerances and Composition

Release paper, siliconized: 0.100 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Rubber, NBR: 0.100 ± 0.010 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
Total without release paper: without release paper: 0.740 ± 0.060 mm

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KLINGER Polystrat BT38-23

Tolerances and Composition

Release paper, siliconized: 0.100 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Rubber, NBR: 0.100 ± 0.010 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
Total without release paper: without release paper: 0.560 ± 0.040 mm

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KLINGER Polystrat BT38-28

Tolerances and Composition

Release paper, siliconized: 0.100 ± 0.020 mm
PS-adhesive, acrylic: 0.120 ± 0.010 mm
Rubber, NBR: 0.120 ± 0.010 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
Total without release paper: without release paper: 0.740 ± 0.050 mm

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KLINGER Polystrat BT50-13

Tolerances and Composition

Release paper, siliconized: 0.100 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Rubber, NBR: 0.100 ± 0.010 mm
Cold rolled carbon steel: 0.500 ± 0.020 mm
Total without release paper: without release paper: 0.680 ± 0.040 mm

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KLINGER Polystrat IOR38-21

Tolerances and Composition

Impact resistant coating, colour red: 0.020 ± 0.005 mm
Release paper, siliconized: 0.100 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Rubber, NBR: 0.100 ± 0.010 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
Total without release paper: without release paper: 0.680 ± 0.055 mm

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KLINGER Polystrat XT38-33

Tolerances and Composition

Release paper, siliconized: 0.100 ± 0.020 mm
PS-adhesive, acrylic: 0.080 ± 0.010 mm
Rubber, NBR: 0.200 ± 0.015 mm
Cold rolled carbon steel: 0.380 ± 0.020 mm
Total without release paper: without release paper: 0.860 ± 0.060 mm

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