Application Guide: Friction Brake System Products
BACKGROUND Brake systems (disc or drum) work to directly oppose a vehicle’s tendency to move. Friction materials in brake systems include clutch facings, linings, blocks, and disc pads. These are typically made from a mix of fibers, fillers, lubricants, resins and abrasives. Historically, fibers from asbestos were used due to superior reinforcement and heat resistance properties. In recent years, this mineral has been replaced by less hazardous alternatives such as wollastonite, mineral wool and glass fibers. Important goals in friction systems include noise control, improved rotor and drum wear, vibration control, and product life improvement.
PRODUCTS FOR SELECTION   Features   Benefits   A.   Microglass: milled gl ass  fibers      Short fiber lengths      Wide variety of grades        Reinforcement      Micro - crack control      Balance of properties to  application     B.   Wollastonite      Natural mineral      High purity      Improved wear      Improved processing      Asbestos replacement      Favorable economics vs.  other mi nerals or glass  options     C.   Microwool: processed  mineral fiber      Processed & treated in  USA      Complex silicate  chemistry      Low shot content      Low moisture      Small diameter with  long lengths        Excellent economics      Excellent bonding to matrix      Processability      Noise control      Improved wear      Thermal Stability      Low rotor wear      Reduced corrosion risk      Dimensional stability and  micro - crack control SUGGESTED LOADINGS Product   Weight %   Microglass   4  -   18   Wollastonite   7  -   25   Microwool   4  -   20
EXPECTED OBSERVATIONS Overall wear improvement with low noise, low vibration, and acceptable friction stability are achieved when reinforcing fillers are utilized. In some systems, melting of milled glass may be a concern. The suggested replacements are wollastonite or mineral wool or a combination. Selection of appropriate surface treatments can improve wettability and bonding. COMMENTARY Friction material formulations are complex and performance can vary. Each application should be carefully examined and selection should be based on formulation and prototype definition and performance.
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Friction Products
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Technical / Sales Support: contact Bill Simons for application bulletins, samples, or technical assistance.
Final determination of the suitability of the material for the use contemplated is the sole  responsibility of the user. No warranty is expressed or implied, and the manufacturer’s  only obligation shall be to rep lace such quantity of the product proven to be defective.
   Since 1986
To Top To Top Mica Microglass Microwool
© Copyright 2015 Fibertec, Inc. All Rights Reserved
35 Scotland Boulevard Bridgewater, MA 02324  Phone 508.697.5100 Fax 506.697.7140
Functional Filler Solutions Wollastonite
PRODUCTS FOR SELECTION   Features   Benefits   A.   Microglass: milled gl ass  fibers      Short fiber lengths      Wide variety of grades        Reinforcement      Micro - crack control      Balance of properties to  application     B.   Wollastonite      Natural mineral      High purity      Improved wear      Improved processing      Asbestos replacement      Favorable economics vs.  other mi nerals or glass  options     C.   Microwool: processed  mineral fiber      Processed & treated in  USA      Complex silicate  chemistry      Low shot content      Low moisture      Small diameter with  long lengths        Excellent economics      Excellent bonding to matrix      Processability      Noise control      Improved wear      Thermal Stability      Low rotor wear      Reduced corrosion risk      Dimensional stability and  micro - crack control
EXPECTED OBSERVATIONS Overall wear improvement with low noise, low vibration, and acceptable friction stability are achieved when reinforcing fillers are utilized. In some systems, melting of milled glass may be a concern. The suggested replacements are wollastonite or mineral wool or a combination. Selection of appropriate surface treatments can improve wettability and bonding. COMMENTARY Friction material formulations are complex and performance can vary. Each application should be carefully examined and selection should be based on formulation and prototype definition and performance.
Call Us:  (508) 697-5100
Friction Products
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Application Guide: Friction Brake System Products
ISO9001:2008 Certified SUGGESTED LOADINGS Product   Weight %   Microglass   4  -   18   Wollastonite   7  -   25   Microwool   4  -   20
BACKGROUND Brake systems (disc or drum) work to directly oppose a vehicle’s tendency to move. Friction materials in brake systems include clutch facings, linings, blocks, and disc pads. These are typically made from a mix of fibers, fillers, lubricants, resins and abrasives. Historically, fibers from asbestos were used due to superior reinforcement and heat resistance properties. In recent years, this mineral has been replaced by less hazardous alternatives such as wollastonite, mineral wool and glass fibers. Important goals in friction systems include noise control, improved rotor and drum wear, vibration control, and product life improvement.
Technical / Sales Support: contact Bill Simons for application bulletins, samples, or technical assistance.
Final determination of the suitability of the material for the use contemplated is the sole  responsibility of the user. No warranty is expressed or implied, and the manufacturer’s  only obligation shall be to rep lace such quantity of the product proven to be defective.
   Since 1986
Mica Microglass Microwool Wollastonite
© Copyright 2015 Fibertec, Inc. All Rights Reserved
35 Scotland Boulevard Bridgewater, MA 02324  Phone 508.697.5100 Fax 506.697.7140
Functional Filler Solutions