SAS 520 is a two-part room temperature cure toughened adhesive offering exceptionally high peel, shear and impact strength, high temperature resistance and tolerance to oil contaminated surfaces. SAS 520 is ideal for structural engineering, electronics, maintenance and repair.
Cures at room temperature
Slump resistant due to its thixotropic consistency
Excellent impact resistance
Resistant to dilute acids, dilute alkalis, hydrocarbon solvents and most other chemicals encountered
Excellent resistance to water and can be applied in damp conditions
Alpha SAS520 is suitable for the following applications:
- Structural bonding for the automotive, marine and transportation industries
- Repair of vehicles
- Bonding of metal structures
- Assembly of electronic components
The following technical information and data should be considered representative or typical only. Therefore, the information should not be used for specification purposes.
The performance data presented here has been determined by Alpha Adhesives & Sealants Limited standard test methods and are average values that should not be used for specification purposes. Our recommendations on the use of this product are based on tests believed to be reliable. It is advised that users conduct their own tests to determine the suitability of the product for their specific application.
HANDLING & APPLICATIONS
The general application information presented here is based upon typical conditions determined by Alpha Adhesives & Sealants Limited testing. Our recommendations on the use of this product are based on methods believed to be reliable. It is advised that users conduct their own tests to determine the suitability of the product for their specific application.
All substrate surfaces should be abraded using abrasion paper or air-driven narrow belt sander. It is imperative that the surfaces are then cleaned of any dust, grit, loose material, wax, grease and oil using a suitable cleaner such as Alpha T559.
- Mix equal quantities of SAS520 Part A and SAS520 Part B in a clean container until a creamy, uniform consistency is achieved.
- Apply the mixed SAS520 adhesive to one of the surfaces to be bonded.
- Position the substrates together into the desired final position and clamp together until the handling strength is achieved (approximately 6 hours at room temperature).
Heat can be applied to speed up the rate of cure of SAS520 and will result in a tougher cured product. Approximate times for heat curing are:
- 75°C – 60 minutes
- 100°C – 20 minutes
Handling strength is achieved approximately 6 hours after bonding. Full cure is achieved 24 hours after bonding.
A suitable solvent cleaner such as Alpha T559 should be used to clean uncured adhesive prior to curing.
When fully cured, Alpha SAS 520 will require mechanical sanding to remove material.
HEALTHY & SAFETY INFORMATION
Alpha SAS520 is classified as hazardous according to Directive EC 1272/2008. Please refer to the Alpha SAS520 Safety Data Sheets for further health & safety information.
Alpha SAS520 should be stored in its original container, with the syringe cap tightly secured, in dry conditions and at temperatures between -20°C and +35°C. Alpha SAS520 will keep satisfactorily for up to 24 months from date of manufacture if stored according to the recommended conditions.
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