Ultra-high-molecular-weight polyethylene (UHMWPE or sometimes shortened to UHMW),
also known as high-modulus polyethylene (HMPE) or
high-performance polyethylene (HPPE), is a subset of the thermoplastic polyethylene.
It has extremely long chains, with molecular weight
numbering in the millions, usually between 2 and 6 million. The longer chain serves
to transfer load more effectively to the polymer
backbone by strengthening intermolecular interactions. This results in a very tough
material, with the highest impact strength of any
thermoplastic presently made. It is highly resistant to corrosive chemicals, with exception
of oxidizing acids. It has
extremely low moisture absorption, has a very low coefficient of friction, is self-lubricating,
and is highly resistant to abrasion (15
times more resistant to abrasion than carbon steel). Its coefficient of friction is
significantly lower than that of acetal. It is odorless, tasteless, and nontoxic.
TIVAR®1000 UHMW is an excellent general purpose wear material that meets FDA, USDA,
& 3-A Dairy guidelines for pharmaceutical processing and food
contact applications. Standard colors are Natural (White) and Black, custom colors are
Blue in color, is recognized worldwide as the premium lining material for bulk material
handling, TIVAR® 88 is noted for its
performance in promoting bulk solids flow of cohesive or non-free flowing materials
due to its low surface friction.
TIVAR® CeramP is a shatter resistant alternative to ceramics. TIVAR® CeramP is noted
for dimensional stability. TIVAR® CeramP is a proven
performer in high speed, high load
CleanStat is a static-reduced product that meets FDA & USDA guidelines for food
handling and pharmaceutical processing. TIVAR®
CleanStat is weldable and will eliminate static build-up problems while exhibiting a
longer-wearing, lower-coefficient of friction
sliding surface than stainless steel.
DockGuard provides dock fender facing that outlasts other materials such as wood,
rubber, urethane or high density polyethylene.
The ideal material for marine fender systems, TIVAR® DockGuard allows vessels to glide
easily along its surface without marring hulls.
DrySlide is modified with special dry additives for enhanced coefficient of friction
and antistatic properties. TIVAR® DrySlide
is effective in dusty environments where components need extra lubrication and anti-static
ESD is an ideal material to use when potentially volatile conditions exist, such
as those in grain elevators and munitions plants,
effectively safeguarding against static discharges.
H.O.T. is formulated to maintain key performance properties in an extended temperature
range, TIVAR® H.O.T. will excel in
a variety of industrial manufacturing environments where temperatures range up to 275°F.
TIVAR® HPV was developed specifically for wear components subject to challenging
production environments, such as high speeds,
high temperatures, high loads and aggressive cleaning agents. TIVAR® HPV is also FDA
has been specifically tailored for use in the food processing and packaging industries
where it can easily be traced by the conventional metal detection systems installed
detect contamination of the foodstuffs (results may vary depending on the sensitivity
the metal detection system used).
Oil Filled is an enhanced dynamic coefficient of friction formula, exuding an oil
additive to lubricate mating surfaces.
This is commonly used for applications requiring higher pressure velocity values. TIVAR
Oil Filled meets FDA & USDA guidelines
for food contact applications.
PolySteel is compounded to achieve specific gravity >1 (won't float); activates
metal detectors. TIVAR® PolySteel has
been specially formulated to create a magnetically detectable polymer material that
can be separated from wood pulp in solution.
U.V. Resistant is modified for enhanced stability in outdoor applications and is
available black as a
standard and also in custom colors. Outdoor applications for TIVAR® U.V. Resistant are