Polyethylene (PE)

Polyethylene (PE) is a lightweight, durable thermoplastic with a variable crystalline structure. One of the most widely produced plastics in the world, it can be found in bottles, bags, tubes, and toys. Ultra high molecular-weight polyethylene, commonly referred to as “UHMWPE” is a subset of PE with properties that are exceptionally well-suited to sealing applications. UHMWPE has a high modulus and a coefficient of friction comparable to that of PTFE, but with better abrasion resistance. It exhibits extremely low moisture absorption, and is highly resistant to many corrosive chemicals.

Key Properties of Ultra High Molecular Weight Polyethylene (UHMWPE)

temperature symbol
Moderate
Temperature
Range
media symbol
Moderate
Media
Compatibility
friction symbol
Low
Coefficient
of Friction
tensile strength symbol
High
Tensile
Strength

Bal Seal® UHMWPE Material Performance

Our PE sealing materials for rotary, reciprocating, and static applications are formulated to provide optimal performance and service life in your designs. Our offering ranges from virgin UHMWPE to precision blends that leverage the additive properties of fillers to meet specific temperature pressure, speed and wear requirements. UHMWPE sealing materials are available to meet USP Class VI and FDA compliance or compatibility requirements.

Temperature Resistance
(° fahrenheit)

temperature graph

Media Compatibility
(rating)

media graph

Friction
(µ at ambient temperature)

friction graph

Tensile Strength
(psi at break)

tensile strength graph

UHMWPE Seal Applications

UHMWPE Technical Resources

Filled UHMW Polyethylene
(UP30)

data sheet

UHMW Polyethylene
(UPC10)

data sheet

Filled UHMW Polyethylene
(UP40)

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