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144586 tn?1284669764
Garbage Bags for Survival
Garbage bags are an inexpensive  indispensable addition to emergency supplies, although not
commonly mentioned on government sites. They can provide durable shelter from rain, snow and the elements
and represent the difference between life and death.

Every hiker in the wilderness should carry at least two of them in the backpack.

Currently they are primarily manufactured from polyethylene thermoplastic, which is extremely durable and has a large strength to density ratio.

You want to purchase the largest and strongest bags available. This is easier said than done. You may have to use the internet or have them special ordered.

Bags are sold with two designations:

(1) thickness and (2) strength of the plastic

The thickness may be 3,4,6 or 8 mil. Get the thickest.

(2) The plastic strength is designated by the letters LDPE, MDPE, HDPE. and UHMWPE. These
letters stand for "low density polyethylene, medium density polyethylene, high density polyethelyne and
ultra high density polyethylene

Bags are also available in different sizes (see illustration).

All bags will serve the purpose, but the thicker and higher density, the better. The colored bags are usually light density.
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144586 tn?1284669764
The brightly colored bags are best for signaling and to be viewed from the air if lost, but are generally not available in the thickest or strongest varieties.

It is not a good idea to put a bag over your head, sealing you off from oxygen.

Make a slit at 90 degrees from the seam in the middle, eight to 12 inches long in which to poke your head. If you don't do that moisture will condense inside the bed, making you wet and chilled.
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