Laminated Enclosed FME Foam Plugs — Fully Encapsulated Debris Exclusion Sponges (Safe-T-Sponge®)

Fully sealed on every face — for sharp edges and rough openings

Laminated Enclosed FME foam plugs take our standard foam core and seal it completely inside our proprietary flame-retardant laminate — top, sides, and bottom. With no exposed foam anywhere, these plugs stand up to the sharp edges, burrs, and abrasive surfaces that would tear or shed an ordinary sponge, and the sealed skin wipes down clean between uses. When the opening is unforgiving, this is the plug the manufacturer recommends.

Why fully enclosed

• Sealed on all sides in flame-retardant laminate — no exposed foam to tear, snag, or shed particles.
• Built for sharp or abrasive openings — recommended where edges or surfaces would damage a standard or top-laminated sponge.
• Most durable round in the line and easy to wipe clean, supporting reuse and decontamination.
• Twin top handles for controlled placement and removal of larger discs.
• Low-halogen, low-metals foam core — built to a documented low-contaminant standard with independent lab testing and lot-number traceability on every batch; nuclear & fossil compatible.
• Patented design, made in the U.S.A.

Where they're used

Turbine overhauls, boiler work, valve bodies, flanged and machined openings, and new fabrication — anywhere Foreign Object Damage (FOD) is a risk and the opening has edges, burrs, or rough surfaces that rule out an unprotected sponge.

Specifications

• Shape: Round plug, foam core fully encapsulated in proprietary flame-retardant laminate
• Sizes listed here: 5"–16" outside diameter (127 mm–406 mm) - LARGER SIZES AVAILABLE UPON REQUEST
• Max temperature: 212°F (100°C) continuous (standard foam core). Need higher? See our High-Temp FME Plugs, rated to 500°F.
• Material: low-halogen, low-metals foam; flame-retardant laminate skin
• Sold: individually (each)
• Lead time: made to order, about 5 business days.
• Origin: Made in U.S.A. · Patented (U.S. Pat. 6,506,014 / 6,824,356 / 7,533,698)

Use & care (always follow site FME procedures)

• Choose a size that seats snugly with compression but still inserts and retracts easily; position the loops below any tooling used afterward and keep them centered.
• Inspect before, during, and after use; account for and replace any damaged plug.
• Vacuum loose debris before retracting the plug.
• Keep away from welding slag, grinding sparks, flame, and ignition sources.
• Avoid acetone and alcohol-based solvents and oils — they can weaken the laminate bond. Don't soak or immerse. Don't step on or cut the plug.
• Attach a lanyard per your site standards — required for vertical-down applications.

Need 18"–30" or a custom size? Larger Laminated Enclosed plugs are made to order — request a quote and we'll price it for you.

Need a Safety Data Sheet (SDS), certificate of compliance, or RFID-tagged sponges? Add a note to your order or contact us and we'll provide documentation.