Water Blocking Plastic



The Water Blocking Plastic is a robust, commercial-grade HDPE (High-Density Polyethylene) product, ideally suited for both commercial and residential settings where effective water blockage and diversion are required. This high-quality plastic is designed to offer outstanding puncture resistance and waterproof capabilities, ensuring it remains durable against environmental elements. It is non-biodegradable and boasts an impressive material lifespan of up to 100 years when not exposed to direct sunlight.

Key Features
UV Protection: Includes a built-in UV inhibitor to safeguard the material from harmful ultraviolet rays.
Durability: Engineered to be mildew and rot-resistant, it also withstands potential damage from rodents and insects.
Adaptability: Available in a variety of widths and thicknesses, ranging from 30 mil to 100 mil, to meet diverse application needs. A mil is equivalent to 1/1000th of an inch.

Made in the USA, the Water Blocking Plastic not only provides a reliable solution for water-related challenges but also maintains its integrity over long periods, making it a cost-effective and sustainable choice for waterproofing needs.

Material Thickness:
30 mil = 1/32”
40 mil = 3/64”
60 mil = 1/16”
80 mil = 5/64”
100 mil = 3/32”

Please Note: The widest rolls that we offer in HDPE are 60” (5ft).

We are also unable to provide custom roll lengths.

Product Specifics

  • Material: High Density Polyethylene
  • Texture: Smooth
  • Size: Various
  • Free Shipping
  • Need a Written Quote?
    Request Online > 
  • Volume Pricing Available - orders $6,500+
  • Questions? Call (800) 520-7731

HDPE Plastic

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

All of our plastics are professional-grade and are designed for use in both residential & commercial applications. Our plastics are designed for years of continuous use in the designated application.

HDPE Barrier Tape

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

HDPE Barrier Tape - Moisture Resistant



  • All HDPE Ships for Free (standard ground, see map)
  • Expedited shipping only available on orders over $2,000 
         Call: (800) 520-7731 for pricing and ship times

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".