PTFE Back-Up Rings
Precision-manufactured PTFE back-up rings sized for the complete AS568 O-ring series. Designed to fill extrusion gaps and elevate pressure capability in high-pressure hydraulic and pneumatic applications.
When high-pressure hydraulic systems demand leak-free performance, standard O-rings alone aren't enough. Detroit Sealing Components supplies precision PTFE back-up rings engineered to eliminate extrusion gaps, extend seal life, and maintain integrity under extreme pressure cycles. From standard AS568 sizes to custom geometries, DSC delivers the anti-extrusion solutions your application requires—fast, reliably, and cost-effectively.
Explore our comprehensive range of back-up rings, O-rings, and complementary sealing solutions for hydraulic and pneumatic systems.
Precision-manufactured PTFE back-up rings sized for the complete AS568 O-ring series. Designed to fill extrusion gaps and elevate pressure capability in high-pressure hydraulic and pneumatic applications.
Standard and custom O-rings in NBR, FKM, and dozens of compounds. Available from 0.5mm ID to 1600mm ID, conforming to AS568, BS 4518, JIS, and other international standards for hydraulic systems.
High-performance wiper, rod, and piston seals engineered for dynamic hydraulic and pneumatic cylinder applications, delivering exceptional wear resistance and low-friction performance.
T-seals combining an O-ring profile with integrated back-up rings, providing a space-efficient anti-extrusion solution ideal for demanding reciprocating hydraulic cylinder applications.
A broad range of PTFE-based sealing components offering exceptional chemical resistance, low friction, and thermal stability for fluid power and industrial sealing applications.
Bespoke back-up rings and sealing assemblies developed using CAD and finite element analysis. DSC collaborates with top polymer producers to engineer solutions tailored to your unique hydraulic system requirements.
In demanding hydraulic systems—from industrial presses to mobile equipment—pressure spikes can force O-rings into clearance gaps, causing rapid seal failure. DSC's PTFE back-up rings are manufactured to precise tolerances and sized for the full AS568 O-ring range, effectively sealing extrusion gaps and extending the service life of your sealing assembly. Available in 90 durometer NBR and FKM, and backed by an ISO 17025 accredited lab for custom material development, DSC delivers robust, cost-effective anti-extrusion seals with nationwide distribution speed.
See how DSC's back-up ring solutions have solved extrusion and leakage challenges across industries.
DSC combines decades of sealing expertise with fast nationwide distribution to keep your hydraulic systems running without interruption.
Our ISO 17025 accredited lab custom develops and tests seal materials to meet your exact hydraulic application requirements.
Rooted in Michigan's precision manufacturing heritage, DSC brings decades of molded rubber and PTFE sealing industry experience to every order.
Stocking warehouse operations and strategic logistics enable swift, cost-effective delivery of back-up rings and seals to customers across the United States.
From CAD design to finite element analysis, DSC engineers custom back-up ring geometries tailored to your specific hydraulic system clearances and pressures.
Experienced sealing specialists committed to solving your hydraulic challenges.
Detroit Sealing Components (DSC) is a stocking warehouse and distributor of precision molded rubber goods headquartered in Plymouth, Michigan—strategically positioned near high-traffic shipping lanes to serve customers nationwide. With decades of experience in the precision molded rubber industry, DSC's skilled leadership and technical staff have built a reputation for delivering innovative and robust sealing solutions with exceptional speed and value. From standard PTFE back-up rings for AS568 O-ring series to fully custom anti-extrusion seals engineered in our ISO 17025 accredited lab, DSC is dedicated to meeting and exceeding the challenges of every customer—from automotive and hydraulics to oil & gas and aerospace. Our core principle is simple: provide the right seal, fast, at the right price.
A back-up ring is designed to fill the extrusion gap in an O-ring gland during high-pressure applications. It prevents the O-ring from being forced—or 'extruded'—into the clearance gap between mating hardware components, which would cause premature seal failure and leakage.
Speak with DSC's sealing specialists for expert guidance and a free application consultation.
DSC ships PTFE back-up rings and sealing solutions to customers across the United States from our Plymouth, Michigan warehouse.
Nationwide
Distribution Reach
Plymouth, MI
Headquarters
Mon–Fri, 8am–5pm
Business Hours
DSC distributes back-up rings and sealing products nationwide. Contact us to confirm availability and lead times.
Internationally recognized accreditation for custom seal material testing and development.
Back-up rings tooled and sized to the full AS568 O-ring series standard.
Recognized precision sealing supplier serving hydraulics, oil & gas, and aerospace sectors.
Submit your requirements below and a DSC sealing specialist will respond with product recommendations, custom options, and a fast quote. Standard and custom PTFE back-up rings available for immediate inquiry.
For immediate assistance, feel free to give us a direct call at +1 313-887-4695 You can also send us a quick email at
For immediate assistance, feel free to give us a direct call at +1 313-887-4695 You can also send us a quick email at