Signals Defense Product Catalog

The 2026 Signals Defense catalog is here and contains information on our best selling Signals Defense products including: RF/IR window films, foils, tapes, paints, caulk, and Lockmasters RF/STC doors and locks.

Signals Defense requests your contact information in order for us to mail samples, email specifications, and download documents.  

Building Shielding Experts

Thank you for considering Signals Defense for your building shielding needs. We are thrilled to share our product catalog for your reference.  We have continued to expand our product line to cover all of your shielding requirements.

What Materials Go into Building a SCIF?

What Materials Go into Building a SCIF?

Sensitive Compartmented Information Facilities, or SCIFs, are secure rooms where confidential information is often discussed. However, it’s worth noting that SCIFs can, and should, really exist in any facility where classified information is either stored or regularly...

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Owings Mills, MD. 21117