How to Choose the Right Santoprene Cord Stock for Your Project

When it comes to selecting the right cord stock for your project, there are many factors to consider. One material that has gained popularity in recent years is Santoprene. Santoprene cord stock offers a unique combination of flexibility, durability, and chemical resistance, making it an ideal choice for a wide range of applications. In this article, we will discuss the key considerations for choosing the right Santoprene cord stock for your project.

Understanding Santoprene Cord Stock

Santoprene is a thermoplastic elastomer that combines the characteristics of rubber and plastic. It is known for its excellent resistance to weathering, ozone, and UV radiation, as well as its ability to withstand high temperatures. Santoprene cord stock is available in various sizes and shapes, such as round, square, or rectangular profiles, to suit different application requirements.

Determining the Size and Shape

The first step in choosing the right Santoprene cord stock is determining the size and shape that best suits your application. Consider the specific dimensions and tolerances required for your project. Santoprene cord stock is available in a wide range of sizes, from small diameters to larger ones, to accommodate different sealing or cushioning needs. Additionally, depending on the design requirements, you may need to choose between round, square, or rectangular profiles.

Evaluating Durometer

Durometer is an important factor to consider when selecting Santoprene cord stock. Durometer refers to the hardness or softness of the material. It is measured using a Shore A hardness scale, with higher numbers indicating a harder material. Consider the specific requirements of your application. A softer durometer (lower number) may be more suitable for applications where flexibility and compression are important, such as sealing or gasketing. On the other hand, a harder durometer (higher number) may be preferred for applications that require more rigidity and resilience, like bumpers or spacers.

Assessing Chemical Compatibility

Chemical compatibility is another crucial aspect to consider when choosing Santoprene cord stock. Evaluate the specific chemicals or substances that the cord stock will come into contact with during its intended use. Santoprene is known for its excellent resistance to a wide range of chemicals, including oils, solvents, acids, and bases. However, it is always advisable to consult the compatibility charts provided by the manufacturer to ensure that the Santoprene cord stock is suitable for your specific application.

Considering Temperature Range

Temperature range is an important consideration for any project that involves Santoprene cord stock. Santoprene is known for its exceptional temperature resistance, with the ability to withstand both high and low temperatures. However, it is important to select a Santoprene cord stock that can operate within the desired temperature range of your application. Consider the maximum and minimum temperatures that the cord stock will be exposed to and choose a material that can withstand those conditions without compromising its performance.

Reviewing Performance Requirements

Finally, it is essential to review the performance requirements of your project before selecting the Santoprene cord stock. Consider factors such as compression set resistance, tensile strength, elongation at break, and tear resistance. These properties will determine the overall performance and durability of the cord stock in your specific application. Consult the technical data sheets provided by the manufacturer to ensure that the chosen Santoprene cord stock meets or exceeds your desired performance requirements.


Choosing the right Santoprene cord stock for your project requires careful consideration of various factors, including size and shape, durometer, chemical compatibility, temperature range, and performance requirements. By taking these aspects into account, you can ensure that the selected Santoprene cord stock will meet the specific needs of your application and provide optimal performance and longevity. Remember to consult with manufacturers or suppliers for additional guidance and technical support, as they can provide valuable insights based on their expertise and experience.

– My Most Valuable Advice

A Beginners Guide To

Similar Posts