As a leading Rubber and Plastic Additive Supplier and Manufacturer, Shitong specializes in the research, development, and production of rubber and plastic additives, including Blowing Agents, Internal and External Lubricants, and other functional additive solutions. With reliable manufacturing capabilities and technical expertise, we provide customized solutions and stable supply for global customers in rubber and plastic industries.
Shandong Shitong Polymer Materials Co., Ltd. was established in December 2016. It is located in Changle County Economic Development Zone, Shandong Province. Company main products are foaming modifier, lubricant and other rubber and plastic additives. This is a production research and development sales technology services in the integration of high-tech enterprises.
10+
Professional Production Experience
According to the characteristics and application fields of customers' products, we can provide customers with the most suitable foaming agents and lubricants and other rubber and plastic additives.
Largest producer of blowing agents.
Provide the recipe.
Strict quality control system, to provide customers with the best quality products.
Good after-sales service, so that customers have no worries.
Oct. 20, 2026
Why Does PVC Turn Yellow During Extrusion?
PVC can turn yellow during extrusion when heat stabilization is insufficient, the melt experiences excessive shear, or the material remains in the extruder or die for too long. These conditions can accelerate thermal degradation and dehydrochlorination, releasing hydrogen chloride (HCl) and forming conjugated structures that discolor the polymer.
AC vs. OBSH Blowing Agents: Which Should You Choose?
Oct. 19, 2026
What Causes Uneven Cell Structure in PVC Foam Boards?
Oct. 16, 2026
Environmental Protection
Our products have the characteristics of non-toxic, odorless and tasteless. In the process of production and use of customers, it will not corrode customers' production equipment and will not produce harmful gases, which is conducive to protecting the environment.
We are seeking reliable and trustworthy partners to grow our business together and establish long-term relationships. Feel free to contact us to explore partnership opportunities.
