HDPE, LDPE and LLDPE Material Selection Guide

2022-03.01 Read:share:

HDPE LDPE and LLDPE polyethylene material selection guide

Need help choosing HDPE, LDPE or LLDPE? Send material option, application, size, thickness, grade, flexibility need, cutting or machining need, quantity and destination. These details help match the polyethylene material to your use case.

RFQ tip: include stiffness, flexibility, moisture exposure, chemical exposure, food contact need, machining method, drawing file, quantity and destination when comparing HDPE, LDPE and LLDPE.

What details are needed for polyethylene material selection?

Send the target material, application, size, thickness, grade, flexibility need, cutting or machining need, quantity and destination. If the material is for food processing or outdoor use, include that requirement.

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LDPE, LLDPE and HDPE have different differences in density, use and properties. Let's briefly talk about it:
1. Density

HDPE is high-density polyethylene with the highest density, ranging from 0.941 g/cm3 to 0.960 g/cm3. The density of LDPE as low density polyethylene and linear low density polyethylene (LLDPE) is lower, between 0.910-0.940 g/cm3 and 0.915-0.935 g/cm3, respectively.

2. Purpose

HDPE can be used as a sheet by extrusion, and bottles, barrels and other containers can be produced by blow molding. LDPE is mostly used to make film products, such as packaging, agricultural film, etc. LLDPE can be used to make mulch and can also be used in molding.

3. Nature

HDPE and LLDPE have good heat resistance and are also resistant to corrosion by acids, alkalis and organic solvents, but LDPE has low heat resistance and poor resistance to organic solvents. In addition, HDPE and LLDPE have good impermeability, while LDPE has poor moisture barrier.

The above is about the difference between LDPE, LLDPE and HDPE. If you have any questions or need products, please contact us. Back

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