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The Envelop material was developed through the Small Business Innovation Research (SBIR) program with the goal of developing a material to replace vinyl then in use on US Navy ships. With more than 1,100 cover designs available for items such as topside weapon systems, shipboard assets, towed and self-propelled artillery, ground combat vehicles, and both rotary and fixed-wing aircraft, Envelop Protective Covers are the proven cover of choice for the Department of Defense since 2003.


The world’s most effective, longest lasting corrosion inhibiting cover

  • Cuts corrosion up to 95%

  • Reduces maintenance and repair costs

  • Maximizes equipment longevity

  • Increases readiness

Protects Assets Against:

  • Corrosion

  • UV damage

  • Water Damage

  • Dirt, sand, snow, debris

Innovative user-friendly construction:

  • New outer materials available offer a 35% reduction in weight

  • Easier to install

  • New inner materials: reduce drag, allowing for faster on/off efficiency; and eliminate water absorption weight gain

  • Unsurpassed durability