S-LEC™ AS Series is a specialty (meth)acrylic binder developed by SEKISUI Specialty Chemicals for low-temperature sintering processes. By enabling clean decomposition, low residue, smooth printability, and strong green strength, it helps manufacturers achieve higher product quality and process reliability.
Additionally, S-LEC™ AS Series can be applied not only in air atmospheres but also in nitrogen environments. This flexibility makes it an optimal choice for applications where thermal impact and firing residue are critical. Its suitability extends especially to electronic and functional materials that require clean debinding and stable processing.
S-LEC™ AS Series is supplied as a resin solution, enabling seamless integration with various coating and printing processes and ensuring consistent handling stability throughout production, reducing interruptions and improving overall efficiency.
Selecting a binder for sintering processes involves more than just film-forming capability; it requires balancing debinding behavior, post-firing residue, coating and printing performance, and green body strength throughout the entire process.
S-LEC™ AS Series is designed to address these requirements by enabling low-temperature decomposition for sensitive substrates, minimizing residue for cleaner processing, ensuring compatibility with multiple printing methods for greater flexibility, and offering adjustable viscosity to support different process needs. In addition, high-strength grades help maintain enhanced film or sheet integrity in demanding applications.
For example, you can select a grade based on the desired characteristics—such as one suitable for applications that prioritize low-temperature, short-duration degreasing, or one suitable for applications that prioritize film-forming properties and sheet strength in addition to degradability.
S-LEC™ AS Series is suitable for various electronic and functional material processes because it decomposes in a balanced way, leaves minimal residue, prints well, and provides notable strength.
In electrode paste applications, S-LEC™ AS Series promotes uniform coating thickness and stable layer formation, which results in more reliable electronic performance.
When used for ceramic sheet forming, the binder helps reduce sheet breakage and manage challenges during debinding, ensuring higher productivity and fewer defects. For neodymium magnets, its coating and decomposition features optimize sintering conditions to support product consistency.
SEKISUI Specialty Chemicals can propose suitable grades based on your target materials, process conditions, and required viscosity, strength, and decomposition profiles.
Careful consideration of multiple factors—such as decomposition behavior, processability, post-firing residue, and mechanical strength—is critical when selecting a binder for low-temperature sintering.
Each binder chemistry offers specific advantages and limitations.
PVA-based systems provide strong mechanical properties but are limited to water-based solvents.
Aliphatic polycarbonates exhibit low-temperature decomposition and low residue, but require evaluation of process compatibility.
Conventional acrylics offer good decomposition characteristics but may present challenges in sheet strength.
Ethyl cellulose may leave a residue under low-temperature or nitrogen-firing conditions.
S-LEC™ AS Series is designed to address these trade-offs by offering low-temperature decomposition for efficient processing, reduced residue for cleaner results, good printability for clear labeling, and high-strength grades suitable for sheet forming applications.
Q. What supply forms are available?
S-LEC™ AS Series is typically supplied as a vehicle (resin solution). Powder form may also be discussed depending on your requirements.
Q. What viscosity range is supported?
The series covers a wide viscosity range from approximately 100 to 30,000 mPa·s. Adjustments can be discussed based on your application needs.
Q. How much property data is available?
Basic data is available through the product catalog. For more detailed evaluations under specific conditions, please contact us directly.
Q. What solvents are compatible?
S-LEC™ AS Series can be tailored to various solvents, including terpineol, butyl acetate, and butyl carbitol, depending on your process requirements.
