Metal Detectable O-Rings Selection Guide

Metal Detectable O-Ring Material Compatibility to Detect Contamination in Food and Pharmaceutical Processing systems from Experts

Marco Rubber Supplies Metal Detectable O-Rings, Seals, Sanitary Gaskets, X-rings, and any custom shape desired.

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food processing

Metal detectable O-Rings and Rubber Seals are used with detection equipment to identify contamination. With time and repeated cleaning, sterilization and processing equipment components in food & beverage, and pharmaceutical processing equipment can degrade.

As elastomer seals degrade, there is an elevated risk of rubber fragment contamination. Metal detectable O-rings and Seals are designed to work with Inline X-ray detection, metal detection, and magnetic separator equipment for immediate identification.

A variety of base materials like FKM, Silicone, EPDM and Buna-Nitrile are filled with a unique combination of magnetic metallic fillers for detectability. This allows systems to quickly reject contaminated products and trigger equipment PM to drastically reduce the potential of contamination of the final product.

We know metal detectable O-Rings and Seals are NOT a one material fits all sealing solution. If our popular materials do not meet your requirements, Marco Rubber is equipped to offer prototypes of custom formulated materials to match the performance you seek.


Metal Detectable O-Ring Material Compatibility to Detect Contamination in Food and Pharmaceutical Processing systems from Experts

Contact us for help selecting from these and the many more available.

CPD#MATERIALDUROMETER (SHORE A)COLORLOW TEMP (F)HIGH TEMP (F)FDA*USP CLASS VI**NSF61USDA 3AMETAL DETECTABLE
V1148VITON70Black-15437checkmarkcheckmark
Black FKM Metal detectable for contamination detection sensors
V1208VITON70Blue-4437checkmarkcheckmark
Blue FKM Metal detectable for contamination detection sensors
E1146EPDM70Black-65300checkmarkcheckmark
Black EPDM Metal detectable for contamination detection sensors
B1105BUNA70Black-30250checkmarkcheckmark
Black NBR Metal detectable for contamination detection sensors
B1115BUNA70Blue-40250checkmarkcheckmark
Blue NBR Metal detectable for contamination detection sensors
B1146BUNA70Red-40250checkmark
Red NBR Metal detectable for contamination detection sensors
S1184SILICONE70Red-65400checkmarkcheckmark
Red Silicone Metal detectable for contamination detection sensors
S1183SILICONE70Blue-67450checkmarkcheckmark
Blue Silicone Metal detectable for contamination detection sensors

*FDA compliance per 21 CFR 177.2600 parts A-D, E&F approved compounds available upon request. **USP <87> and USP <88> approved compounds available upon request.
The temperature ranges presented above are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details.