Today, Shenyang Longgreen Science & Technology Co., Ltd. (hereinafter referred to as "Longgreen") is undergoing the re-audit of the ISO 9001 Quality Management System, demonstrating the company’s unwavering commitment to quality excellence in the research, production, and supply of rubber release agent. This re-audit, taking place today, is examining the effectiveness and sustainability of Longgreen’s quality management system, while also focusing on the superior performance and reliable quality of our core product—rubber release agent, which has been widely recognized in the global rubber processing industry. We are fully cooperating with the audit team to ensure the smooth progress of today’s re-audit in accordance with the ISO 9001 certification rules and standard audit procedures.

As a professional manufacturer specializing in rubber auxiliary agents, Longgreen has always regarded quality as the cornerstone of its development. Since obtaining the initial ISO 9001 certification, we have strictly implemented the system’s requirements throughout every link of rubber release agent production, from raw material procurement and formula research to production process control and finished product testing. Today’s re-audit is a key assessment of our consistent adherence to international quality standards and our continuous efforts in quality improvement, with the audit team conducting comprehensive on-site inspections in line with standard audit procedures.
The engineering case we are presenting focuses on the application of our rubber release agent in a large-scale tire manufacturing project, where the client faced significant challenges in the rubber molding process. The client, a well-known tire manufacturer with production bases worldwide, was struggling with issues such as difficult mold release, excessive mold contamination, high scrap rates, and unstable product quality when using conventional rubber release agents. These problems not only reduced production efficiency but also increased production costs, posing a serious impact on the client’s market competitiveness.
After learning about the client’s pain points, Longgreen’s technical team conducted in-depth research on their production process, including rubber material characteristics, molding temperature, mold specifications, and production rhythm. Based on the research results, we customized a high-performance rubber release agent solution that meets the client’s specific needs. Our rubber release agent is formulated with advanced water-based technology, which is environmentally friendly, non-toxic, and free of harmful volatile organic compounds (VOCs), complying with both international environmental standards and the client’s green production requirements.
In the application process, our rubber release agent demonstrated remarkable advantages. Firstly, it has excellent release performance—after uniform coating on the mold surface, it forms a thin, dense, and wear-resistant film that effectively separates the rubber product from the mold, eliminating the problem of sticky molds and ensuring smooth and efficient release. Compared with the client’s previous rubber release agent, the release efficiency was improved by 30%, significantly reducing downtime caused by mold cleaning and product removal.
Secondly, our rubber release agent has minimal transfer and no residue. Unlike traditional oil-based rubber release agents that often leave stains on the rubber surface, affecting subsequent processing such as bonding and painting, our product ensures that the rubber product surface remains clean and smooth, without any residue or discoloration. This not only improves the appearance quality of the finished tire but also avoids additional cleaning processes, further reducing production costs.
Thirdly, the rubber release agent has excellent high-temperature stability. In the tire vulcanization process, which requires high temperatures (up to 180°C), our product maintains stable performance without decomposition or failure, ensuring consistent release effect throughout the production cycle. This stability is crucial for large-scale continuous production, as it guarantees product quality uniformity and reduces the risk of scrap due to unstable release performance.
What deserves special mention is that the entire production process of our rubber release agent strictly abides by the ISO 9001 quality management system. We have established a strict raw material inspection mechanism—all raw materials used in the rubber release agent are selected from qualified suppliers who have passed our strict audit, and each batch of raw materials undergoes comprehensive testing to ensure they meet the required standards. In the production process, we adopt automated production equipment and real-time monitoring systems to control key parameters such as mixing speed, temperature, and reaction time, ensuring the consistency and stability of each batch of rubber release agent.
After the product is produced, it undergoes a series of strict quality tests, including release performance, viscosity, pH value, high-temperature resistance, and environmental indicators. Only products that pass all tests are allowed to leave the factory. This rigorous quality control system ensures that every batch of rubber release agent delivered to the client meets the highest quality standards, which we believe will be a key factor in successfully passing today’s ISO 9001 re-audit. Our quality management system is fully aligned with the latest ISO 9001:2015 requirements, including the emphasis on risk management and continuous improvement, which is also the focus of today’s audit.
Since the client adopted Longgreen’s rubber release agent, the production efficiency has been significantly improved, the scrap rate has been reduced by 25%, and the mold maintenance cycle has been extended by 40%, bringing considerable economic benefits to the client. The client highly recognized the performance of our rubber release agent and the professionalism of our technical support team, and established a long-term cooperative relationship with Longgreen.
Today’s ISO 9001 Quality Management System re-audit is not only an important assessment for Longgreen but also a new starting point for further quality improvement. In the process of today’s re-audit, we have actively accepted the guidance and suggestions of the audit team, and continuously optimized relevant processes in accordance with ISO 9001 standards. In the future, regardless of the re-audit result, we will continue to take the ISO 9001 standard as the guide, further optimize our quality management system, and invest more resources in the research and development of rubber release agent. We will strive to develop more efficient, environmentally friendly, and cost-effective rubber release agent products to meet the growing needs of global clients, and make greater contributions to the development of the rubber processing industry.
If you are looking for a reliable rubber release agent supplier with strict quality control and excellent product performance, Shenyang Longgreen Science & Technology Co., Ltd. is your ideal choice. Our quality management system, which is undergoing ISO 9001 re-audit today, and our proven engineering cases are the strongest guarantees for your production efficiency and product quality. We strictly follow the requirements of the ISO 9001 certification rules in today’s re-audit process, ensuring the standardization and effectiveness of our quality management system.