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20 Mil HDPE Liner


SKU LV-18-30-100

Our 20 Mil HDPE Liner is a waterproof, durable, and non-biodegradable plastic that is available in a variety of thicknesses. This mildew and rot resistant plastic roll can be installed vertically or horizontally and is tear and puncture resistant. It has a 100 year lifespan when installed under ground (not in direct sunlight), however the plastic is UV resistant and will resist breakdown from ultraviolet exposure. It can be used in hot and cold climates and is rodent and insect resistant.

The 20 Mil HDPE Liner a smooth plastic that is easy to install and has width options of 18" to 48". Our HDPE is made in the USA.


*The widest HDPE roll that we offer is currently 5’ (60 inches).

Plastic Sheeting

  • Material: High Density Polyethylene
  • Texture: Smooth
  • Size: Various
  • Need a Written Quote? Request Online >
  • Volume Pricing on Orders $6,500+
  • Questions? Call (800) 621-5381

Product Features

  • Waterproof
  • Commercial Grade
  • UV Resistant
  • Will Not Rot or Mildew
  • Non-Biodegradable
  • Non-Resistant to Rodent and Insect Damage
  • 100 Year Material Lifespan
  • Made in the USA


  • Ships Free (standard ground, see map)
  • Expedited shipping only available on orders over $2,000

Shipping estimates shown on the map pertain to this specific product only. HDPE orders typically ship same day if the order is placed before 12:00 noon CST. Transit times displayed in the map are listed in business days, and are approximate. Transit times are subject to stock levels at regional warehouses. The day that the order is shipped is not counted as a transit day.

Thickness comparison

The below is a thickness comparison of the material. HDPE plastic thickness is measured in "mils" which is "thousands of an inch".

HDPE Barrier Tape - Moisture Resistant
HDPE Barrier Tape - Moisture Resistant

HDPE Barrier Tape - Moisture Resistant


HDPE Plastic Overview

HDPE or High-density polyethylene, is one of the most popular plastics in the United States. This plastic is a thermoplastic polymer offering high strength-to-density. It's so strong it will resist tearing and breaking apart. This material can be recycled by companies that collect and then process it for HDPE products. You can identify HDPE plastic by the label with a triangle and the number 2 in the center of it.

There are so many uses for HDPE and this article will go over some of its more prominent applications.

Plastic Furniture & Lumber

Because HDPE is strong and durable, making it a perfect candidate for outdoor plastic furniture as well as plastic lumber. HDPE is a popular choice for restroom partitions. If you want restroom partitions for your place of business you couldn't pick a better product than HDPE. Petitions are durable, very easy to install, and practical.

Other uses for HDPE Plastic:

Park benches and picnic tables are made to last using HDPE plastic. Outdoor trash bins or receptacles made from HDPE plastic will resist graffiti or damage caused by collisions with other objects such as bicycles.

Outdoor furniture, such as lawn chairs, use plastic lumber made from recycled HDPE plastic. Recycled plastic comes from scrap plastic making it a great choice for most outdoor items. HDPE is resistant to environmental elements such as hot and cold temperatures, as well as harsh weather conditions. Not only is outdoor furniture durable but very comfortable. HDPE furniture is available in many stylish designs to choose from.

HDPE Decks, patios, and porches will resist sun, rain, and other elements. Long planks made of recycled HDPE are durable and can resist all kinds of weather. Composite decking is an excellent example how recycled HDPE plastic can last a long time. The decking is a combination of recycled plastic and wood fibers without losing its beautiful look and fabulous capabilities. HDPE plastic is an environmentally friendly choice versus traditional wood decks. Recycled plastic will cut back on waste and not leave a negative impact on the planet.

Plastic Lawn Chairs

HDPE Chairs and Table in Backyard

Bottles & Utensils

Bottles from plastic include milk, shampoo, conditioner, bleach, and detergent as well as plastic utensils. Factories use HDPE plastic because of its tensile strength.  HDPE is resistant to toxins and does not come in contact with your food. The containers are easy to sterilize versus older plastic containers.

What You Should Know About HDPE Plastic

While plastic bottles are recycled around the world, sadly only 6.8% of plastics are recycled. With HDPE plastic, 23% of milk containers and water bottles are recycled, and 12% of plastic bags.

Landfills And Recycling

Thanks to HDPE plastic, millions of plastic containers are not ending up in landfills. Recycling HDPE bottles will keep them out of landfills. Also, recycling will reduce pollution which will save the environment.

HDPE Used In Business

The business world can create a plastic-free environment with less impact using recyclable HDPE plastic. HDPE plastic is a very popular material found in many businesses. This plastic is used for everything from water and soda containers to shampoo and conditioner bottles.

In general, plastic has a huge impact on the environment but HDPE plastic is recyclable reducing the impact on our planet. Here is a list of things made from HDPE plastic used in the business:

• Thin plastic shopping bags
• Boxes and palettes
• Containers and drums
• Utility pipes

Plastic Kitchen Utensils

Plastic Kitchen Utensils

Household Containers

HDPE containers are used for shampoos, conditions, and facial washes. Cleaning products including laundry detergent and most household cleaners.

Other Products

HDPE plastic is used in floor tiling, film plastic, crates, and sheets. Recyclable HDPE is used for rope, piping, recycling bins, and plastic lumber.

Recycling HDPE

For the recycling process, all items must be collected and then separated into clean and dirty items. Items that are contaminated go through a cleaning process to guarantee high quality. A recycling machine is used to break up bottles and other items and then turned into small pellets.

These pellets are combined with new HDPE plastic to improve strength and dependability. The initial color of the pellets is usually dark black or brown.

How HDPE Bottles & Jugs Are Melted To Create New Items

If you would like to learn how to take HDPE plastic, melt it down, and make something new and spectacular, here is an easy step-by-step guide to get you there.

First Step - Materials and Tools

You have to collect and prepare all the needed materials and tools. You will need HDPE bottles and jugs along with scrap wood for the plastic mold. For tools, you need baking paper, clamps, scissors or a utility knife, and high-temperature-resistant gloves.

Second Step – The Mold

Melt the plastic into a block using an ordinary box. Just remember the precision of the HDPE block will depend on your mold box so be as precise as possible with the mold box.

Third Step – Cut Up The HDPE Bottles

It's actually quite easy to choose HDPE plastic over other plastics, It's got an identification mark formed in the shape of a triangle with the number 2 in the middle.

Before cutting the bottles, remove all labels and wash them. Take the utility knife and cut off the necks of the bottles. Keep in mind, these necks will be stiff and difficult to cut. Once the neck is removed, you have to cut the base and handle. For larger pieces, use the scissors to cut the plastic into smaller pieces.

Installing Plastic Deck Piece

Installing HDPE Deck Panels

Fourth Step – Bake

Keep in mind, each kind of plastic has its own melting temperature. Preheat the oven and place a baking sheet on the baking pan then place the cut HDPE plastic into it. The oven should be 180°C to melt the plastic then check it every 10 minutes.

Fifth Step – Create The Look Of Marble

After 10 or 15 minutes, the plastic should appear sticky so you can remove it from the oven. Use your heat-resistant gloves and rotate the HDPE clockwise and then counterclockwise to mix the colors together to get the look of marble.

Sixth Step – Clamp The Mold

Put the HDPE plastic back inside the oven. After 10 minutes, take it out and place it in the wooden mold then securely clamp it down. Come back every 5 minutes and tighten the clamps. Remove the plastic from the oven and let it cool down once the mixture has the look of marble.

Seventh Step – The Marble Block

After approximately 2 hours of cooling down, you should see the shrunken plastic and the beautiful look of marble with different colors.