If you run a suppressor, you know that sound reduction and reliability matter equally—and that's where the Inland MFG dB Foam Suppressor rust and corrosion inhibitor comes in. This 4 oz can of foam is formulated to work inside suppressor baffles and chambers to reduce sound while protecting against rust and corrosion. Independent testing using commercial suppressor designs and MIL-STD-1474E sound level testing procedures showed an average 3–5 dB reduction across 10-shot strings, with first-shot reductions sometimes exceeding 10 dB—a meaningful gain in hearing protection for hunting and tactical use.
The foam maintains its consistency for up to six months in storage, so you can treat your suppressor and have the protection and sound reduction ready when you need it. Beyond noise suppression, dB Foam displaces water and leaves a protective, lubricating film on internal suppressor components. That's crucial: backwash and residue that cycle back into your firearm's action and bore get the same rust-inhibiting, lubricated treatment, extending the life of your gun and suppressor alike. Cleanup is simple—warm water and a wipe-down after use removes the water-soluble foam without hassle.
Whether you're running a suppressor for hunting, the range, or tactical work, this product addresses two of the biggest concerns: durability and consistent sound reduction. A 4 oz can gives you plenty of material for multiple treatments, making it an economical choice for anyone serious about suppressor maintenance.
| Brand | Inland Manufacturing |
| Product | dB Foam Suppressor Rust & Corrosion Inhibitor |
| Model | ILMDB4 |
| Size | 4 oz can |
| Sound Reduction (Avg.) | 3–5 dB (10-shot string) |
| First-Shot Reduction | Up to 10+ dB |
| Foam Life | Up to 6 months |
| Water Soluble | Yes |
dB Foam has been tested with a variety of commercial suppressor designs and is formulated to be safe for most suppressor baffles and chambers. Independent testing used multiple commercial suppressor designs, so compatibility is broadly established—but consult your suppressor manufacturer if you have concerns about specific models.
Independent testing using MIL-STD-1474E procedures averaged 3–5 dB of reduction across 10-shot strings. The first shot typically shows the greatest reduction, sometimes exceeding 10 dB. Actual results vary by suppressor design and ammunition used.
dB Foam is formulated to maintain its consistency for up to six months in storage, so a single treatment will remain effective for an extended period before you need to reapply.
dB Foam is water soluble. Simply wash your suppressor in warm water and wipe it dry after use. No special solvents or extended cleaning procedures are required.
Inland Manufacturing
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