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.

How Long Do Window Films Last?

How Long Do Window Films Last?

Window film used in commercial properties lasts 10 to 15 years on average. When used in a residential property, it is often given a lifetime guarantee. Modern-day architecture in both commercial and residential spaces includes using more glass in construction than...

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Suite L

Owings Mills, MD. 21117