Is UHMW polyethylene UV resistant?
Standard UHMW-PE (Ultra High Molecular Weight Polyethylene) is not considered UV stable. It will degrade fairly quickly when exposed to sun and other UV light. However, UV resistant UHMW stock shapes contain additives that aid in the ability of UHMW to withstand direct sunlight or other forms of UV light.
How strong is UHMW plastic?
UHMW Properties and Material Options
| UNITS | UHMW-PE | |
|---|---|---|
| Tensile strength | psi | 3,100 |
| Flexural modulus | psi | 110,000 |
| Izod impact (notched) | ft-lbs/in of notch | 18.0* |
| Heat deflection temperature @ 264 psi | °F | – |
Is UHMW stronger than HDPE?
HDPE (High Density Polyethylene) has a somewhat lower tensile strength than UHMW. It possesses excellent chemical resistance and low moisture absorption. In terms of machining, HDPE finishes a little better than UHMW, although both materials machine well.
Is HDPE wear resistant?
HDPE (high density polyethylene) is a durable, versatile, low-cost, abrasion- and chemical-resistant plastic material. UHMW (ultra high molecular weight polyethylene) is an extremely tough, abrasion-resistant, low-cost plastic, used for a wide range of wear applications.
Can UHMW be used outdoors?
Outdoor applications for TIVAR® UV Resistant are endless. The modified formula retains all the key properties of TIVAR® – low friction surface, wear and corrosion resistance, impact strength – and, exhibits enhanced stability for outdoor, UV-exposed applications.
Can you heat and bend UHMW?
Can UHMW be formed into a curved liner? Bending or folding sheet can be done efficiently above the melt point at 300 degrees F. At that temperature, it shapes easily. However, it must be fastened in the bent or folded position until cooled.
Is UHMW bulletproof?
UHMWPE is VERY strong versus its weight, and has a high resistance to both ballistic, sharp edged and pointed instruments. UHMWPE is not only used in bullet proof and stab proof vests, but also in clothing, fishing lines, cut resistant gloves, aircraft containers, sports equipment, clothes, etc.
What color is UHMWPE?
Green Color
UHMW (Ultra High Molecular Weight) Polyethylene Plastic Sheet 3/8″ x 24″ x 48″ – Green Color.
Is UHMW plastic machinable?
Is UHMW machinable? Ultra-High-Molecular-Weight Polyethylene (UHMW) is a great material for machining. A hard plastic with a slippery surface, it is resistant to abrasion and wear, and allows for an extended equipment life which helps cut maintenance costs.
What is black UHMW?
Product description. Size:24″ x 48″ x 1/4″ Thick | Color:Black. UHMW is ultra,high molecular weight polyethylene. Its properties far exceed other forms of polyethylene and most plastics in regards to abrasion resistance, chemical resistance, and impact strength.
How can you tell the difference between HDPE and UHMW?
UHMW and HDPE are thermoplastic polymers that have a similar appearance. The key difference between UHMW and HDPE is that UHMW contains long polymer chains with very high molecular weights whereas HDPE has a high strength-to-density ratio. UHMW stands for Ultra High Molecular Weight polyethylene.
What are the properties of UHMW plastic material?
It has excellent impact and wear resistance, and low sliding properties for food and beverage processing. UHMW Grades– Several grades of UHMW are available, including reprocessed, enhanced bearing and wear, and FDA compliant . Tech Tip– Ultra high molecular weight polyethylene has a relatively high coefficient of thermal expansion.
What is the purpose of a UHMW sheet?
UHMW sheet is often used for lining chutes and hoppers in order to protect metal surfaces and promote the flow of solid materials such as sand, wood chips, or coal. UHMW is also used for packaging, conveyor, and food process- ing machinery parts including star wheels, idler sprockets, and under-chain wear strips.
What are the properties of ultra high molecular weight polyethylene?
Tech Tip– Ultra high molecular weight polyethylene has a relatively high coefficient of thermal expansion. This may make it difficult to hold tight tolerances on UHMW parts that will be exposed to changing temperatures. Values may vary according to brand name.