For manufacturers working with polyurethane elastomers, selecting the correct curing agent is paramount to achieving desired material properties. Among the most effective and widely used is 4,4'-methylene-bis(2-chloroaniline), commonly known as MOCA, identified by CAS number 101-14-4. As a leading manufacturer and supplier in China, understanding the nuances of MOCA is key to optimizing your production processes and ensuring the quality of your final products.

MOCA is an aromatic diamine that plays a critical role as both a chain extender and curing agent. Its primary function is to react with isocyanate prepolymers, creating cross-linked polyurethane networks. These networks impart exceptional mechanical strength, abrasion resistance, tear strength, and resilience to the final cast polyurethane parts. This makes MOCA an indispensable component in applications ranging from industrial wheels and tires to machinery accessories and protective coatings.

When sourcing MOCA, manufacturers must pay close attention to its specifications. Key parameters include purity, appearance, melting point, and moisture content. For instance, a purity of ≥86% is a common standard, ensuring consistent reactivity and performance. The typical appearance is light yellow granules, which facilitates easier handling and dosing compared to powdered forms. A high melting point, often around 98°C or higher, indicates good product integrity.

For businesses looking to purchase MOCA, partnering with a reputable China manufacturer is a strategic move. A reliable supplier not only guarantees product quality but also ensures a stable and cost-effective supply chain. When you buy MOCA, inquire about their quality control processes, lead times, and packaging options (commonly 50kg drums). Understanding these details will help you secure a consistent source and avoid disruptions in your production schedule.

The price of MOCA can vary based on purity, order volume, and market conditions. However, sourcing directly from a China manufacturer often provides a competitive edge. Don't hesitate to request a quote for MOCA to compare offerings and ensure you are getting the best value for your investment. By choosing a dependable MOCA supplier, you are investing in the long-term performance and reliability of your polyurethane products.