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Neoprene's burn point is around 260 °C (500 °F). [21] In its native state, neoprene is a very pliable rubber-like material with insulating properties similar to rubber or other solid plastics. Neoprene foam is used in many applications and is produced in either closed-cell or open-cell form.
Foam rubber (also known as cellular rubber, sponge rubber, or expanded rubber) is rubber that has been made with a foaming agent so that its structure is an air-filled matrix. Commercial foam rubber is generally made of synthetic rubber, natural latex, or polyurethane. Latex foam rubber, used in mattresses, is well known for its endurance.
The cut surfaces of the foam have a slightly porous mat finish as the cutting process passes through a large number of bubbles, leaving what is called an open cell surface finish, but the bulk of the foam remains closed cell. The open cell finish is the most stretchy and the least tear resistant.
Open cell spray polyurethane foam insulation being applied in wall cavities. Open cell insulation can be crushed in your hand and has a lower insulation value. Closed cell is rigid to the touch and each air cell is completely sealed. While closed cell foam has a higher R-value, it is more costly to buy. [9] Medium-density closed-cell spray foam ...
The main part of the dry suit is a waterproof shell made from a membrane type material, closed cell foamed neoprene or a hybrid of both. Insulation may be provided in part by the suit shell, but is usually mainly provided by thermal insulation clothing worn under the suit, which relies to a large extent on trapped air for its insulating properties.
In camping, a ground pad, sleeping pad, thermal pad, sleeping mat, or roll mat is lightweight pad, common among hikers, backpackers and budget travelers, often used in conjunction with a sleeping bag. Its purpose is to provide padding and thermal insulation. All types currently available use air as their primary form of insulation.
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