Since 1978 DSI has been proudly manufacturing The Original Dortite® & Dortite Xtra® Sponge Rubber Weather Stripping in the USA. Formulated for excellent memory and long-term performance. 

A versatile solution engineered to withstand the toughest conditions, Dortite® seals have earned a reputation across industries for their exceptional performance and reliability. As the exclusive manufacturer of open-cell natural rubber seals, we serve: 

◆ Automotive
◆ Camper & RVs
◆ Recreational Vehicles
◆ Doors & Windows
◆ HVAC Systems
◆ Air Filtration
◆ Construction
◆ Manufacturing
◆ Electrical Enclosures
◆ Industrial Equipment

Constructed to solve a thousand scenarios. Natural and durable sponge rubber, combined with a non-stretch backing and a very aggressive rubber-based adhesive, Dortite® is easy to use and highly reliable. DSI’s Dortite® products are custom-formulated and engineered to excel in applications including sound and vibration dampening, sealing, HVAC, manufacturing, cushioning and dust proofing.

◆ Made in the USA
◆ ASTM, UL, Military Specifications, GSA, Federal Specifications, Fire Resistance
◆ From 1/8” to 9/16” in Thickness
◆ Width from ¼” to 40”
◆ Roll Lengths: 10, 25 or 50 feet
◆ Custom Sizes Available
◆ Low Minimum Orders
◆ Short Lead Times
◆ Fast Delivery

Email info@dsi-dortite.com for a custom quote, orders, or to learn more about becoming a distributor.

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