UHMW Frequently Asked Questions:

1) What is UHMW-PE?

UHMW Polyethylene is a Linear Polymer with a molecular weight in the range of 3,100,000 to 6,000,000. Therefore, UHMW-PE has a molecular weight average 10 times that of conventional high density polyethylene resin.

2) What are the benefits of UHMW-PE?

The high molecular weight is what gives UHMW-PE a unique combination of high impact strength, low co-efficient of friction and abrasion resistance that outwears carbon steel 10 to 1 making it more suitable for many applications where lower molecular weight grades fail.
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3) Where is UHMW used?

UHMW is a self-lubricating material which exhibits excellent wear and abrasion properties in addition to extremely high impact strength. Markets which would utilize these attributes would be snowboard bottoms, material handling, packaging, food processing and automotive just to name a few.
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4) What are my installation options for UHMW?

Crown Plastics Company offers two methods of adhering - the use of pressure sensitive systems (peel and stick) and “Treated For Bonding” allowing UHMW-PE to be bonded using epoxy systems or contact cements. The traditional method of mechanical fastening can also be used if preferred.
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5) What is the temperature range of UHMW?

UHMW-PE can operate continuously up to 180 degrees F and intermittently at 220 F with custom formulations available to enhance the temperature range up to 300 F. UHMW-PE can perform without degradation at cryogenic temperatures (-452 F).
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6) Is UHMW USDA and FDA approved?

Yes, UHMW-PE is FDA and USDA approved for use in food processing and medical applications.
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7) Is UHMW UV stable?

In its natural state, UHMW-PE is not UV stable, but formulations are available to provide UV stability in natural, black or any custom color.
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8) Is UHMW available in a conductive or anti-static form?

Crown Plastics Company can offer virtually all of their gauges in conductive or anti-static forms making it ideal for use in electronics or semi-conductor applications
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9) In what form is UHMW-PE available?

Crown Plastics can supply UHMW-PE from .003” through .125” thick in continuous coil from 1/4”up to 24” wide in roll form, cut to length pieces and in stamped parts.
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10) What colors are available?

While natural (milky white) and black are standard stock colors, UHMW-PE can be produced in any color in the Pantone library.
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11) Are there any high performance blends that can be added to UHMW-PE?

Crown Plastics R & D department has done extensive research on numerous additives that can enhance a variety of properties of UHMW-PE thereby providing customized products to meet customer requirements.
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