In the demanding world of polymer manufacturing, ensuring the longevity and consistent performance of materials is paramount. Degradation from heat, light, and oxygen can significantly compromise product quality. This is where advanced additives like Diphenyl Isooctyl Phosphite (DPIOP) play a critical role. As a leading manufacturer and supplier of specialty chemical additives, we understand the intricate needs of the industry.
DPIOP is a high-performance phosphite ester antioxidant, distinguished by its robust capability to decompose hydroperoxides. These compounds, often byproducts of polymer oxidation, can initiate further degradation. DPIOP's efficacy in neutralizing them makes it an indispensable secondary antioxidant. Its application is widespread across various polymers, notably in Polyvinyl Chloride (PVC) and Polyurethane (PU) systems.
One of the significant advantages of incorporating DPIOP into your formulations is its synergistic effect when paired with other stabilizers. When combined with hindered phenolic antioxidants and UV absorbers, DPIOP amplifies their protective capabilities. This integrated approach offers a more comprehensive defense against environmental stressors, extending the service life of finished products. For manufacturers seeking to buy high-quality polymer additives, understanding these synergistic benefits is key.
The enhanced thermal stability and color retention that DPIOP provides are particularly valuable. In applications such as PVC films or PU coatings, maintaining precise color and structural integrity under processing temperatures and throughout the product lifecycle is essential. By choosing to purchase DPIOP from a reputable supplier like us, you ensure consistent quality and efficacy, directly contributing to the superior finish and durability of your final products.
As a dedicated supplier in China, we are committed to providing manufacturers with the advanced chemical solutions they need. Our extensive industry experience allows us to offer not just products, but also insights into optimizing their use. Whether you are developing new materials or improving existing ones, integrating DPIOP can lead to significant advancements in product quality and customer satisfaction. We encourage you to inquire about our competitive pricing and secure a reliable supply chain for this vital antioxidant.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.