top of page

Polyethylene (PE)

Polyethylene (PE) is a thermoplastic with almost limitless applications. Read more about the different forms of PE, including marine grade high-density PE, below.

What is Polyethylene (PE)?


Polyethylene is a thermoplastic polymer, meaning that it responds to heat for moulding and shaping. Its versatility makes it the most widely produced plastic in the world.

Low Density Polyethylene (LDPE), the low density version of PE is is a very flexible material. Popular applications include packaging film, bin liners, single-use shopping bags, wire insulation, squeeze bottles and toys.


High Density Polyethylene (HDPE), the high density version of PE, is commonly used in food packaging and household items, including blow-moulded milk bottles, buckets, cleaning product bottles and lids.

Ultra High Molecular Weight Polyethylene (UHMW) is even tougher, making it the plastic of choice for high-abrasion applications, such as chain guides, marine dock fender pads and even bulletproof vests.

Low Density Polyethylene (LDPE)
High Density Polyethylene (HDPE)

Low Density Polyethylene (LDPE)


This is usually a soft, flexible plastic that’s used for different kinds of wrapping, bread bags, produce bags and bin bags.


Recycling code: 4

High Density Polyethylene


In the rigid form is usually white or coloured and often used for milk bottles, shampoo bottles and cleaning products.


Recycling code: 2

Marine grade HDPE supplier Gold Coast

Marine Grade HDPE (Seaboard™, Starboard®, Marine Board™)

Specialist marine formulations of HDPE, such as Seaboard™, are designed to meet the specific requirements of marine and other outdoor environments. In addition, special post-production treatment enhances the material's ability to withstand the effects of salt water, moisture and direct sunlight.

Benefits of marine grade HDPE

  • Excellent scratch resistance

  • High impact resistance and stiffness

  • UV stabilised for excellent weatherability - great wood substitute because it will not delaminate, chip, rot or swell

  • Wide range of colours, sizes and thicknesses

Replacement boat components are one of our specialties. Need to bring your boat to us? We have ample room for boat parking at our Arundel factory. Please phone ahead to ensure a fabricator is available to talk with you!

Seaboard HDPE supplier Gold Coast Queensland

Talk with a plastics expert

Phone, email or enquire online now

bottom of page