HYPALON synthetic elastomer:
chemical properties, manufacturing technology, material application area
New tactical equipment from
Hypalon® is the commercial name
of a polyethylene elastomer (polychlorosulfate) developed in the 1950s by
specialists from DuPont, which was established as a commonly used name for a
group of HSPE materials. Currently, DuPont has suspended production of Hypalon®
material, but the technology has been adopted by other brands that supply the
world market with HSPE modifications that are significantly different in their
properties and application.
Production technology and
chemical properties of HYPALON
(CCDE) is produced in the course of the chemical reaction of the
sulfochlorination of polyethylene, as a result of which the hydrogen atoms in
the polyethylene formula are replaced with chlorine atoms by sulphide chloride
groups. The properties of the final product largely depend on the molecular
weight, the degree of crystallinity of the polyethylene, the reaction
conditions, the volume of chlorine and sulfur dioxide atoms introduced into the
molecule of the starting material. Material Hypalon is produced:
• On the basis of PE low density
(prototype DuPontHypalon 20, 30) - is actively used in the paint and varnish
industry in the manufacture of varnishes, mastics, enamels, etc.
• On the basis of high density
PE (prototype - DuPontHypalon 40, 45) - general-purpose rubber, which has
excellent mechanical characteristics and in some cases can be used in
unvulcanized form; is in demand among producers of household and technical
The higher the molecular weight
of polyethylene, the more rigid the polymer can be produced at the exit, but
the thermoplasticity inevitably decreases. At a low molecular weight of the
starting material, the physico-mechanical properties of the final product are
significantly reduced. At an optimum ratio of chlorine and sulfur, the polymer
goes into an amorphous state, acquires high resistance to compression, effects
of aggressive media, and acquires the ability to maintain elasticity at low
Consumer benefits of HYPALON
The popularity of the material
Hypalon among manufacturers of products for technical and household purposes is
conditioned by such consumer qualities:
• High abrasion resistance (3
times higher than polychloroprene) allows the use of polyethylene elastomer for
the manufacture of elements subject to friction and other mechanical
• Good elasticity, which is
preserved even when exposed to the finished product of low and high
temperatures (from -60 to + 180 ° C), UV-radiation (ultraviolet).
• CCDE with a chlorine content
in the range of 32-45% has high oil-, fire-, benzene-resistance, is not subject
• Increased strength, heat
resistance, incombustibility, long service life.
Application area of HYPALON
(CSPE) is used in the production of:
• Coatings for conveyor belts.
• Insulations of cables, wires.
• Gaskets, seals.
• Rubberized fabrics.
• Paintwork materials, glues,
• Rubber boats, etc.
Velmet actively uses
the Hypalon material from the European manufacturer ORCA to implement new
concepts in the field of tactical equipment, elements of individual armor
protection. In the near future, fans of the products of the progressive
Ukrainian brand will be able to evaluate the new models of plate carriers and
other products made using the polyethylene elastomeric Hypalon.