AS568-326 S70 FDA Silicone (VMQ) 70 Duro O-Ring-MD-RED

Stop contamination risks before they start while maintaining a reliable, compliant seal.

When product safety, audit readiness, and uptime matter, this FDA Silicone (VMQ) 70 Duro O-Ring delivers peace of mind. Built from high-quality VMQ silicone with a 70 durometer hardness, this red metal detectable O-Ring helps you catch contamination early using standard metal or X-ray detection systems. That means fewer recalls, less downtime, and stronger customer confidence.

This O-Ring is designed for food, beverage, and pharmaceutical environments where compliance is non-negotiable. The red color enhances visual identification, while the material meets FDA Title 21 CFR 177.2600 standards. You get a dependable seal that holds up through cleaning cycles, temperature swings, and demanding processing conditions.

Operating temperature: -75° to +400°F (–59° to +204°C)

Material & Performance Details

This compound is a FDA-grade Silicone (VMQ) at 70 durometer, red in color with metal and X-ray detectable additives.

Silicone gives you excellent flexibility across a wide temperature range, along with strong resistance to ozone, weathering, and aging. It maintains sealing performance in both hot washdowns and cold startup conditions. While it is not built for abrasion-heavy applications, it excels where cleanliness, compliance, and temperature stability are critical.

Excellent resistance to:

• Animal and vegetable oils and greases
• Non-petroleum brake fluids
• Fire-resistant hydraulic fluids (HFD-R, HFD-S)
• Beer, coffee, milk, and beverage processing fluids
• Diluted salt solutions and sea water
• Ozone, UV, aging, and weather

Limited capability with:

• Moderate water exposure over time
• Mild cleaning chemicals depending on concentration

Not compatible with:

• Petroleum-based oils and fuels
• Diesel and transmission fluids
• Aromatic hydrocarbons (benzene, toluene)
• Chlorinated hydrocarbons
• Strong acids and alkalis
• Steam over 250°F (121°C)
• Silicone oils and greases

Sizes & Measurements

• Cross Section (CS): Varies by AS568 dash size (mm and inch equivalents available)
• Inside Diameter (ID): Varies by AS568 dash size (mm and inch equivalents available)
• Outside Diameter (OD): Varies by AS568 dash size (mm and inch equivalents available)
• Part Number: AS568 Series S70 Metal Detectable Red
• AS568 Dash Numbers: Full standard range available

Applications & Use Cases

These O-Rings are built for environments where contamination control is critical. You will see them used in food processing lines, beverage filling systems, dairy equipment, pharmaceutical manufacturing, and clean-in-place systems. They are especially valuable in HACCP-driven operations where detection of foreign material is required.

They perform well in pumps, valves, mixers, and sanitary fittings where both sealing reliability and compliance matter. If your process includes metal detection or X-ray inspection, this O-Ring adds a layer of protection most standard seals simply cannot offer.

Key Specifications

• Material: FDA Silicone (VMQ)
• Durometer: 70 Shore A
• Color: Red (Metal Detectable)
• Certifications: FDA 21 CFR 177.2600
• Temperature Range: -75°F to +400°F (-59°C to +204°C)
• Detection: Metal and X-ray detectable

Why Buy from The O-Ring Store LLC

You are not just buying an O-Ring. You are reducing risk, saving time, and getting it right the first time.

We back every order with ISO9001:2015 certified processes, so you know what shows up will match what you ordered. We stock these in the USA for fast turnaround, and most orders ship the same day. If you need a custom size or compound, we can source or manufacture it quickly.

You also get full lot traceability and documentation when required, which makes audits easier and keeps your quality team confident. Our team understands sealing applications, not just part numbers, so when something is critical, you have real support behind you.

At the end of the day, this is about protecting your product, your process, and your reputation.

FAQs

1. What makes an O-Ring metal detectable?
Metal detectable O-Rings contain specialized additives that allow fragments to be identified by metal detectors or X-ray systems. This helps prevent contamination from reaching finished products.

2. Can these O-Rings handle cleaning chemicals and washdowns?
Yes, they perform well with many cleaning processes and non-petroleum fluids. However, strong acids, alkalis, and high-temperature steam above 250°F should be avoided.

3. Are these suitable for food and pharmaceutical use?
Yes. These O-Rings meet FDA 21 CFR 177.2600 requirements, making them appropriate for food, beverage, and pharmaceutical applications where compliance is required.