silicone usa
silicone iso certified
Women Owned Small Business Silicone


ARCO® Silicone has over 100 years experience in custom extrusions. We offer short-runs, quick turn arounds, and prototyping services.

While a flame-resistant 30 durometer silicone band may look like a simple band to some, it takes a trained and knowledgeable silicone professional to know the difference between the two. 

For the most part, a standard silicone band could possibly look and feel virtually the same as a highly-engineered product with one exception – it will not perform the same – and that’s what matters the most.

Take a moment to look over some of the resources we’ve provided below.  We have found this info to be useful to our clients as well as anyone who is interested in learning more about the silicone extrusion process. We will add to this page as new developments emerge, so check back often!
As always, we are here to help. If you have a question or if you’d like to discuss your silicone needs with us, please feel free to fill out the “contact us” form at the bottom of the page.


The Rubber Manufacturers Association (RMA) has developed tolerance tables with ranges to provide communication between user and provider across a wide range of industries. The following RMA Tolerance Tables are specifically for extruded cross-sectional rubber profiles and cut-to-length unspliced parts. These tables help customers and manufacturers to identify and understand critical dimensional requirements, as well as the associated achievability and cost. Projects with closer tolerance demands during the manufacturing process will incur higher costs, so it’s very important to know this information up front.  When your project demands close tolerances please specify in the drawings or in the quote request. 

Keep in mind that these are standard tolerances, but custom tolerances are always available to better fit your needs. 

For Extruded Cross-Sectional Parts