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Posted: 11/2/2004 9:26:37 AM EDT
 Bushmaster A2 rifle handguards Comp or Inj molded? |
| Compression molding is stronger and will char when hot before it melts as injection molding will.As far as sneaker and boot soles like military issue jungle boots are a rubber/pvc mix thats injection molded,call ALTAMA DELTA theyll tell you how they make their soles..the pvc provides stregnth while the injection process keeps them flexible aka a little softer. |
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The Mil-Spec boot soles are made of rubber and not PVC/Polyurethane. The Commercial Spec soles are made of PVC/Polyurethane (injection molded IIRC). When PVC is burned, toxic fumes are released and this can present a problem in close quarters/confined spaces. I.e. A fire starts inside the hull of a Bradley and a soldier's boot starts burning. A Mil-Spec boot will not be releasing toxic fumes inside such cramped quarters whereas a Com-Spec boot such as an Altama that features a PVC/Polyurethane boot sole, would be releasing toxic fumes. I know this because I have several pair of combat boots. One was the issued full-leather/rubber sole combat boot. I bought a pair of Altama Mil-Spec Jungle Boots because the issued boots were total junk when it came to traction, comfort, and weight. I had to notch away a lot of the material on the issued boot sole to make it flexible and have better traction in the mud. I still prefer the Panama sole though. |
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