Plastic or Steel Body Armor? Everything You Need to Know.

Published on March 3, 2021
Duration: 14:31

This expert-level guide from The VSO Gun Channel compares steel and polyethylene body armor, detailing their differences in weight, profile, durability, and cost. It highlights the importance of anti-spall layers, plate carrier compatibility, and considerations for water operations, offering practical insights for selecting appropriate ballistic protection.

Quick Summary

Steel body armor is heavier, cheaper, and more durable against repeated impacts, defeating bullets by shattering them. Polyethylene armor is lighter, thinner, and more comfortable but more expensive and potentially less durable long-term. Both require anti-spall layers for safety.

Chapters

  1. 00:03Intro to Body Armor Discussion
  2. 00:52Armor Quality and Brands
  3. 01:14Plate Comparison: Steel vs. Polyethylene
  4. 01:42Key Differences: Weight and Profile
  5. 02:10Weight Demonstration
  6. 02:32Fatigue Impact of Steel Armor
  7. 03:04Profile and Defeat Methodology
  8. 03:57Plate Thickness and Weapon Mount
  9. 04:48Plate Carrier Compatibility
  10. 05:19Anti-Trauma Plates
  11. 05:33Carrier Design Limitations
  12. 06:14Spalling (Fragment Retention)
  13. 06:48Shielded Armor Importance
  14. 07:19Anti-Spall Layer Effectiveness
  15. 07:49Realistic Anti-Spall Expectations
  16. 08:22Polyethylene vs. Steel Durability
  17. 09:21Back Face Deformation (BFD)
  18. 10:00BFD and Recovery
  19. 10:13Buoyancy Comparison
  20. 10:51Water Operations Consideration
  21. 11:07Cost Analysis
  22. 11:17Steel Armor Pricing
  23. 11:47Polyethylene Armor Pricing
  24. 12:12Cost and Multiple Rigs
  25. 12:44Warranty and Shelf Life
  26. 13:32Longevity of Steel Armor
  27. 13:49Fragility Considerations

Frequently Asked Questions

What are the main differences between steel and polyethylene body armor?

Steel armor is heavier, more durable against repeated impacts, and significantly cheaper. Polyethylene armor is much lighter, thinner, and more comfortable, but also more expensive and potentially less durable over the long term against certain threats.

How does steel armor defeat bullets compared to polyethylene?

Steel armor defeats rounds by shattering the bullet without deforming the plate itself. Polyethylene armor works by locally shattering to slow and catch the bullet within the plate material.

What is the importance of an anti-spall layer on body armor?

An anti-spall layer is crucial for containing fragments that break off from a bullet or the armor upon impact. Without it, these fragments can scatter and cause secondary injuries.

Which type of body armor is better for water operations?

Polyethylene armor is buoyant and will float, making it the preferred choice for water operations. Steel armor is not buoyant and will cause the wearer to sink.

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