Enhanced TDS
Identification & Functionality
- Chemical Family
- Function
- Structural Adhesive
- RTU Product Type
- Technologies
- Product Families
Features & Benefits
- Product Features
- Vinyl-phenolic basis
- Can be applied by roller coater or spraying
- Dark brown/black when cured
- Formerly known as Redux 64-1
Applications & Uses
- Application Area
- Application Method
- Markets
- Applications
Properties
- Typical properties of the cured adhesive
- In tests on common friction lining materials (both of the older asbestos based types and the modern non asbestos types) Araldite® 64-1 has been shown to give shear test failures in the friction materials, both at 20°C and 200°C. Typical failure values on a 25mm x25mm area are >4.5 MPa at 20°C and 1.2 - 4.5 MPa at 200°C depending on friction material type.\
- Steel / steel lap shear test joints (overlap 25mm width x 15mm length) bonded with Araldite® 64-1 and bonded with Araldite® 71 adhesive, gives values greater than 9 MPa at 23°C, and greater than 7 MPa at 200°C.
Technical Details & Test Data
- Processing Condition
- Pretreatment: The strength and durability of a bonded joint are dependent on proper pre-treatment of the surfaces to be bonded. Steel parts should be prepared by degreasing, followed by shot-blasting to a clean uniform matt surface. The friction material should be free of any loose materials and traces of grease. If metals other than steel are to be used for the process, then these should be pre-treated in an appropriate way.
- Application of product Araldite® 64-1: is suitable for application by brushing, spraying or roller coating. When used as the primary adhesive, it is suggested that the product is coated onto the liner surfaces. A dried coating weight of 150 - 200gsm is typical.
- Curing the adhesive Araldite® 64-1 requires drying free of solvent at 20oC – 70oC, followed by a thermal cure at 150oC – 230oC. Solvent drying should be in a well-ventilated area, allowing at least 6 hours at 20oC or 25 minutes at 70oC. The dried parts may then be stored for several weeks before subsequent bonding operations, or may be bonded immediately. The exact drying time will depend on adhesive thickness and ventilation. During the bonding operation the coated lining and brake parts are positioned together under a pressure of 0.35 - 1.0MPa and heated to fuse and cure the adhesive layer. The pressure must be maintained in order to prevent bubbling of the adhesive as volatile products are released during the curing. Optimal curing conditions vary from 30 minutes at 150oC 15 minutes at 165oC to 5 minutes at 200oC. Fast curing by induction heating at temperatures up to 230oC are possible but prolonged heating must be avoided at these temperatures, otherwise the adhesive performance may be adversely affected.
Packaging & Availability
- Regional Availability
Storage & Handling
- Storage Conditions
- Araldite® 64-1 has an assigned shelf life of 18 months when stored between 6 and 28oC in original unopened containers.
- Storage at higher temperatures will reduce the shelf life. For example, if storage is at 40oC, it is recommended that the remaining life, at that point, be reduced by one quarter.
- The expiry date and standard storage conditions are quoted on the product label.
Other
- Appearance
- Clear brown liquid
- Color (SDS)
- Brown
- Physical Properties
Value Units Test Method / Conditions Flash Point max. 18.0 °C °C Specific Gravity approx. 100.0 - Viscosity1 1.5-3.0 Pa.s Pa.s At 25°C