Gun Deals
Buster Beaver Cerakote
HighLine Firearms
Defensive Arts
Advertise on Northwest Firearms
Oregon Rifleworks
Low Price Guns
Simply Triggers
Oregon Arms & Ammunition
Sporting Systems
Southwest Firearms
J&B Firearm Sales
An ice pack or gel pack is a portable plastic bag filled with water, refrigerant gel, or liquid. For use the contents are frozen in a freezer. Both ice and other non-toxic refrigerants (mostly water) can absorb a considerable amount of heat before they warm above 0 °C, due to the high latent heat of fusion of water. These packs are commonly used to keep food cool in portable coolers, or as a cold compress to alleviate the pain of minor injuries, or in insulated shipping containers to keep products cool during transport.Ice packs are used in coolers to keep perishable foods (especially meats, dairy products, eggs, etc.) below the 5–75 °C (41–167 °F) danger zone when outside a refrigerator or freezer, and to keep drinks pleasantly cool. The amount of ice needed varies with the amount of food, its initial temperature, the thermal insulation of the cooler, and the ambient temperature and exposure to direct sunlight. Ice initially well below freezing temperature will last a little longer.
Water has a much higher latent heat of fusion than most substances, and a melting temperature which is convenient and easily attained with, for example, a household freezer. Additives to improve the properties of water are often used. For example, substances can be added to prevent bacterial growth in the pack, or to prevent the water from solidifying so it remains a thick gel throughout use.
Gel packs are often made of non-toxic materials that will remain a slow-flowing gel, and therefore will not spill easily or cause contamination if the container breaks. Gel packs may be made by adding hydroxyethyl cellulose (Cellusize), sodium polyacrylate, or vinyl-coated silica gel.

View More On Wikipedia.org
Oregon Arms & Ammunition
Cerberus Training Group
Advertise on Northwest Firearms
Project Appleseed
Southwest Firearms Forum
Copeland Custom Gunworks
NW Custom Firearms
Sporting Systems
Top Bottom