How to Bond Acrylonitrile Styrene Acrylate (ASA Plastic)
How to Bond Acrylonitrile Styrene Acrylate (ASA Plastic)
Acrylonitrile Styrene Acrylate (ASA) is a thermoplastic polymer recognized for its excellent chemical resistance, weather resistance, and long-lasting durability. It is especially suitable for outdoor applications due to its ability to withstand degradation from UV light, heat, and moisture. ASA also features a smooth surface and is resistant to oils, greases, and saline solutions but may be sensitive to ketones, esters, aromatic compounds, chlorinated solvents, and certain alcohols. Typically, ASA has a surface energy between 38 and 42 dyn/cm.
ASA is widely used in the manufacture of fittings, construction brackets, downspouts, gutters, and siding profiles. It is also used for hose fittings, telephone handsets, and fixtures. ASA is suitable for 3D printing prototypes and functional parts due to its durability and mechanical properties.
ASA is marketed under various trade names such as Centrex, Geloy, Kibisan, Luran, and Terblend.
ASA is a relatively new material in 3D printing—although it has been known since the 1970s, demand for ASA over ABS has only recently increased.
Bonding
Proper surface preparation is crucial before bonding. Remove any oil, dirt, or dust from the ASA surface using a non-conditioning cleaner. Then thoroughly dry the surface with a clean cloth or paper towel, as most adhesives require a dry surface for optimal adhesion.
Choose an adhesive suitable for bonding ASA plastic:
- Cyanoacrylate (super glue) is often an effective choice for ASA, forming strong bonds with the plastic. It is a fast-curing adhesive that bonds instantly upon material contact. ASA plastic can develop stress cracks if exposed to uncured cyanoacrylate, so it is essential to immediately remove any excess glue from the surface.
- Methyl methacrylate (MMA) adhesive, also known as acrylic glue, is a strong and fast-curing adhesive using methyl methacrylate monomer to create a durable bond. It is known for impact resistance, chemical resistance, and clarity and is widely used in industrial bonding and repairs. ASA is compatible with acrylic adhesives but may be affected by activators before full curing. Any excess activator should be removed from the surface immediately.
- UV adhesive cures rapidly upon exposure to ultraviolet light. This adhesive is used for precise and instant bonding of materials. UV glue offers high transparency, good chemical resistance, and is suitable for industrial applications requiring fast curing and reliable bonding. Follow the manufacturer’s instructions regarding exposure time and light intensity to ensure optimal adhesion and bond strength.
Always follow the specific curing time and optimal curing conditions stated for ASA adhesives.
Since each application has different strength requirements depending on use and function, we always recommend evaluating the bond’s strength and durability to ensure it meets the demands of your specific application.
Manufacturers
Acrylonitrile Styrene Acrylate (ASA) is marketed under various trade names that represent variants produced by well-known plastics manufacturers:
Centrex from Monsanto Chemical
Geloy from GE Plastics
Kibisan from Chi Mei Industrial
Luran and Terblend from BASF
Contact us
Do you have questions about bonding or need advice on choosing the right adhesive for your application? Our experts are ready to help you achieve reliable and durable bonding.
We offer solutions with adhesive products that are tailored to meet your specific needs.
Contact us today for professional advice and support.
Call us at +45 66171802 to speak directly with one of our specialists, or send us an email at info@hojstrup.dk.
We ensure that you receive the best guidance and support for your bonding projects.
