Diisononyl phthalate, also referred to as DINP, is a plasticizer used in a variety of materials for a diverse array of industrial applications. DINP is commonly associated with PVC plastics and vinyls employed in the adhesive, construction, and manufacturing industries. However, it can also be incorporated into other materials, including less conventional applications, such as in clothing, shoes, and consumer goods. The physical properties characteristic of DINP enable this versatility.
What Is DINP?
DINP belongs to a class of chemical additives known as plasticizers. As suggested by their name, when added to another material, these compounds plasticize—i.e., soften—the base material, increasing its flexibility and decreasing its brittleness.
DINP’s low volatility, high permanence, compatibility with other chemical agents, and REACH-registered status make it suitable for inclusion in a variety of plastic compounds. The additive is especially useful for plasticizing PVC and plastisols and is recognized as a cost-effective replacement for the more common dioctyl phthalate (DOP).
Adding DINP to a plastic improves that compound’s performance in several ways, including:
- Greater flexibility (depending on the quantity of DINP added)
- Increased weather and water resistance
- Enhanced thermal insulation
- Improved durability
- Diminished migration (leading to longer-lasting material properties)
DINP is also easy to work with in a manufacturing setting. The chemical is stable and slower to evaporate than other plasticizers, which minimizes wasted product and reduces environmental impact. Additionally, DINP has a low paste viscosity, allowing it to be easily incorporated into a range of materials, including liquid plastisols.
DINP Uses
Due to its flexibility and low rates of migration, DINP is most commonly used for tubing and profiles. It is also a standard component in films, foils, and sheets, especially those intended for use in colder environments.
Beyond these general applications, DINP finds use in the following industries:
- Automotive. DINP’s durability and ease of manufacturing lend it to use in the automotive industry. When added to chassis coverings, it helps prevent damage due to dirt, corrosion, and rust damage or corrosion.
- Building and construction. DINP materials are often employed in the building and construction industry to cover exteriors and roofing. They can also be used in water-resistant protective coverings such as those used in arenas.
- Cable and wire. DINP’s durability, flexibility, thermal resistance, and cost-effectiveness make it excellent for use as an insulator in smaller products, such as cables and wires.
- Flooring and textiles. As DINP evaporates slowly, it can be a good option for flooring and textile manufacturing applications, which often require lengthy dipping or spraying techniques.
- Adhesives. Various caulks and sealants can benefit from DINP’s low migration and weather resistant properties.
- Clothing. When added to synthetic materials—such as faux leather—DINP grants additional flexibility and wear resistance.
DINP Distribution by ChemCeed
ChemCeed is a full-service chemical supplier with multiple locations and extensive expertise in the chemical supply chain. We offer performance DINP products in totes and 55-gallon drums with options for bulk orders upon client request.
As an ISO 9001:2015-certified company, we guarantee quality and consistency at every step of the process, a standard of excellence that we also apply to our customer relations model. From day one, we partner with your company to ensure that all logistics are tailored to your individual needs. Additionally, we offer a range of value-added services to accommodate our diverse partners.
To learn more about our DINP product offerings or request a quote, visit our DINP products page.