Adhesive Tape Systems
Brake Shim Adhesives Solutions for Noise Reduction
Adhesive Tape Systems
Engineered to Perform Better™
Solutions for Noise Reduction ORAFOL‘s brake shim adhesives are advanced solutions for noise reduction for highly demanding automotive brake applications. This adhesive range was specifically designed to have excellent adhesion properties on most brake materials (e.g. rubber, steel, powder coated metals). The products were developed to withstand extreme shear forces and temperatures, which occur during brake operation. For decades, ORAFOL’s brake shim products have proven their worth in numerous brake systems. The long-term experience gained in this field and state-of-the art equipment have provided the possibility to offer well proven systems as well as newly developed products that meet upcoming challenges e.g. cold-noise damping. ORAFOL’s Brake Shim Solutions Offer · Damping behavior tailored to various brake systems · Excellent damping efficiency · Reliable noise reduction and long-term stability · Wide damping frequency range · Excellent shear and temperature resistance · Variety of available liners compatible to various application processes and complex product shapes
Adhesives
2
Damp. Max @ ~1000 Hz (° C)
Temp. Resistance (° C)
Peel Performance on Steel (N/25 mm)
Acrylate A
26
> 220
21
Acrylate B
26
> 220
24
CNA A
12
180
20
CNA B
2
150
17
Silicone A
80
> 220
26
Silicone B
108
> 220
26
Properties of Brake Shim Adhesives Damping Profiles (Loss Factor) The spectra were recorded using 80 - 120 µm adhesive films adhered to a 5.0 mm stainless steel ground plate and a 0.4 mm stainless steel shim. Normalized Loss Factor 0.5 mm Steel + 120 µm Adhesive + 0.4 mm Steel
Acrylate A
1
temperature (° C)
Acrylate B
NLF @ ~1000 Hz
0.75 0.5 0.25
CNA A CNA Silicone A Silicone B
0 -30
-10
10
30
50
70
11000
90
110
130
frequency (Hz)
The top figure summarises the damping behavior of6600the available brake shim adhesives. For better comparison the curves are normalized and the first Eigenfrequency (at around 1000Hz) of the loss factor is plotted over the temperature. The acrylics, 4400 as well as the cold noise acrylics (CNA), damp efficiently between -20° C and 50° C whereas the silicones at much higher temperatures between 2200 50° C and 130° C. The bottom graphs give a more detailed look onto the damping behavior of each 0 adhesive. Shown is the damping efficiency (in %) at different -30 -20 -10 frequencies 0 10 20 30 40 and 50 60temperatures. 70 80 90 100 110 120 130 140 150
damping (%)
8800
temperature (° C)
Damping (%) 0
1
2
3
8800
6600 4400
damping (%)
8800
frequency (Hz)
11000
6600 4400
2200
2200
0 -30 -20 -10
0
10
20
30
40
50
60
70
80
0 -30 -20 -10
temperature (° C)
90 100 110 120 130 140 150
0
10
20
30
temperature (° C)
40
50
2
4
5
11000 0
90 100 110 120 130 140 150
1
2
3
4
5
damping (%)
4400
frequency (Hz)
damping (%)
6600
6600 4400
2200
2200
0
10
20
30
40
50
60
70
80
temperature (° C)
90 100 110 120 130 140 150
0 -30 -20 -10
0
10
20
30
temperature (° C)
0
1
2
3
40
50
60
70
80
90 100 110 120 130 140 150
temperature (° C)
Silicone A
Silicone B
4
11000
5
8800
0
1
2
3
4
5
4400
2200
damping (%)
6600
frequency (Hz)
8800
damping (%)
frequency (Hz)
80
8800
0 -30 -20 -10
Silicones
70
CNA B 3
8800
frequency (Hz)
Cold Noise Acrylics
1
60
temperature (° C)
CNA A 11000 0
11000
5
Acrylate B
11000
damping (%)
frequency (Hz)
Acrylics
Acrylate A
4
6600 4400
2200
0 -30 -20 -10
0
10
20
30
40
50
60
70
80
90 100 110 120 130 140 150
temperature (° C)
0 -30 -20 -10
0
10
temperature (° C)
20
30
40
50
60
70
80
90 100 110 120 130 140 150
temperature (° C)
3 0
1
2
3
4
5
0
1
2
3
4
5
ORAFOL‘s Product Range for Brake Applications Adhesive Type
Adhesive Thickness (µm)
Liner Mounting Side (Brake Side)
Liner Laminating Side (Brake Shim Side)
ORABOND® 1309
Silicone
50
White PET/LDPE-laminate (suitable for Bunetto process)
Clear 36 µm PET
ORABOND® 1310
Silicone
80
White PET/LDPE-laminate (suitable for Bunetto process)
Clear 36 µm PET
ORABOND® 1373
Acrylic
100
Yellow siliconized paper 90 g/m²
ORABOND® 1373W
Acrylic
100
White PE-coated paper 140 g/m²
ORABOND® 1373WA
Acrylic
100
White PE-coated paper 100g /m²
ORABOND® 1374
Acrylic
50
Yellow siliconized paper 90 g/m²
-
ORABOND® 1374WA
Acrylic
50
White PE-coated paper 100 g/m²
-
ORABOND® 1321
Acrylic
70
Clear 50 µm PET (opt. printed)
White siliconised paper 90 g/m²
ORABOND® 1319
Acrylic
70
Yellow siliconized paper 90 g/m2
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YSTEM C ER TS EN
ATION FIC TI
MANAGE M
Product
ISO 9001 ISO 14001 ISO 50001
ORAFOL Europe GmbH Orafolstraße 1, D-16515 Oranienburg, Germany Tel: +49 (0)3301 864-0 / adhesive.tapes@orafol.de Find out more about our products at: www.orafol.com · www.orafoleurope.com
ORAFOL Europe GmbH. ORABOND® is a registered trademark of ORAFOL Europe GmbH. - 48201-110 (09/2020)
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