Overview
The S70.210 silicone O-ring cord is a 200-foot spool of premium FDA-compliant silicone cord stock designed for custom gasket and seal fabrication. With a nominal diameter of 3/16″ (5.33 mm) and 70 durometer rating, this material delivers reliable sealing performance across a wide range of industrial temperatures and chemical environments.
Key Features
- FDA-grade silicone rubber (VMQ) for food-contact and pharmaceutical applications
- 3/16″ (5.33mm) diameter cord stock for easy splicing and custom O-ring creation
- 70 durometer hardness — balanced flex and compression set resistance
- Temperature range: −65°F to +200°F continuous service
- Excellent resistance to ozone, UV, and weathering
- Bulk 200-foot spool format reduces per-foot cost for high-volume users
Technical Specifications
- Cord Diameter: 3/16″ nominal (5.33 mm)
- Material: Silicone (VMQ)
- Durometer: 70 Shore A
- Color: Red
- Length: 200 feet
- Temperature Rating: −65°F to +200°F (−54°C to +93°C)
- Compliance: FDA-compliant for food and pharmaceutical contact
- Standards: Meets AS568 reference dimensions
Typical Applications
The S70.210 cord is commonly used in:
- Custom-spliced O-rings for OEM and aftermarket machinery
- Gasket material for food processing and beverage equipment
- Pharmaceutical and laboratory instrument seals
- HVAC and refrigeration system gaskets
- Industrial pumps, compressors, and hydraulic systems
- Prototype and repair applications where standard O-ring sizes are unavailable
Compatibility & Replacements
Compatible With
- Standard AS568 O-ring groove dimensions
- Metric and inch-based equipment designs
- Food-contact and pharmaceutical-grade systems (FDA compliance)
- High-temperature industrial sealing environments
Replaces / Drop-In Replacement For
- Other 3/16″ diameter silicone O-ring cord stock in 70 duro
- General-purpose cord stock where FDA compliance is not required (cross-compatible with equivalent specifications)
- Verify exact O-ring groove dimensions and material requirements with your system integrator before ordering
Works With
- O-ring splicing kits and vulcanizing tools
- Standard gasket groove charts (AS568, ISO 3384)
- Food-grade and pharmaceutical sealing applications
- Compatible with standard silicone lubricants and assembly tools





