High-Pressured Polyethylene Foam (PEF)
Product Introduction:
With advanced foaming production lines, and scientific formula, the high-pressured polyethylene foam (PEF) is produced by a mixture of high-pressured polyethylene, burning inhibitor, foaming agent, cross linking agent, etc. through dense and open build-up, and chemistry bridging, making polyolefin become high polymer spongy nets, balanced steam bubbles. This bubble structures can lead to a series of products with the density of 20, 30, 40, and 45 respectively, the tiny and independent air bubble structure of which are difficult to burn and resistant to flame with 26, 28, 30, 32 oxygen indices separately.
Colorful Products of PEF
True colors: The product takes on light yellow color.
Bearing: The product assumes black gray color.
White: The product assumes its true color--- white.
Colored: single color and compound colors can be customized on demand.

Product Characters
A Good Heat Insulation Effect: Since this foaming material is made of completely independently closed cell structure, its thermal conductivity is only 0.038w/M.K. Not only does it have a good heat preservation effect, but its superiority of keeping cold is more prominent.

Simple And Quick To Use: In construction, put the heat-insulated plate or tube over the object to be heat-preserved with glues

Long Service Life: Because of its fine properties of weather bearing, anti-hit, and structure stability, its life span is higher than the traditional thermal insulation materials.

Low Cost for Heat Preservation: In spite of its high investment for the first time, its life is long, and it does not need frequent replacement, which saves not only the materials expenses, but also the massive labor costs. Moreover, with its warm and cold keeping effect, energy conservation is a long-term economy. Thus, its comprehensive heat preservation cost is, instead, lower than other thermal insulation materials.

Condensation Resisting: With closed cell structures, this material depends on the gas in the closed cell to insulate heat rather than on non-polyethylene materials. Since it has an outstanding anti-vapor ability, the innate lining made of it is both a heat insulating layer and a steam barrier, whose anti-wet factor μ value is bigger than other thermal insulation materials. Thus, this material can effectively prevent the condensation phenomenon from occurring.

Good Anti-Flame Performance: With this material, besides the popular type, we can also use it to produce two kinds of flame-resistant (oxygen index ≥27), anti-burning (oxygen index ≥32) products to satisfy the different fire requests. Moreover, this froth thermal insulation material has less smoke toxicity compared with similar products in existence.

Weather Bearing Property: Because of its high degree of cross-linking, and good stability, the exposure of ultraviolet ray for 300 hours in tests doesn’t change the surface layer, so that the service life of this material is long.

Solidity to Corrosion: This material can bear many kinds of chemicals. After soaking, it does not distort, nor crack. Thus, it may be widely used in the chemical pipelines, accumulator tanks for heat preservation.

Low Temperature Resistance: Under the strong low temperature, the structure of the material does not change, nor distort, nor crack.

Non-Toxicity: This material does not have any virulent matter. Under pyrolytic decomposition, it doesn’t produce noxious gas, either.

Impact Absorption: This material is anti-hit; its impact absorption is best of thermal insulation materials.

Other Merits: pleasing to the eye; various colors; easy to process; easy to compound with; soft and clean; good to the touch; light as cotton, etc.
Uses:
Heat insulation and preservation for equipment and pipelines in industries like petroleum, chemical industry, electric power, food and drug manufacturing, and so on.

Heat insulation and preservation, sound and shock absorption for railroads and trains, automobiles, ships, airplanes and refrigeration trucks, and so on.

Heat preserving, sound absorbing, sound-insulating and quakeproof for the expanding, contracting and sealing of roofs, wall surfaces, central air conditioning as well as paths, windows and doors of office, guesthouse and apartment buildings.

Packing materials for precision instrument. Materials for home decoration, light industries, sporting goods and lifesaving things.
PEF Foaming Material Performance Chart (e.g. flame-resistant Level Ⅲ)