HDPE

About HDPE

HDPE (high density polyethylene) is available in sheet and rod for applications that require greater strength and stiffness than LDPE (low density polyethylene). It is easy to fabricate and weld using thermoplastic welding equipment and is an excellent choice for fabricated water tanks and chemical tanks.

HDPE material is also available in a variety of additional grades for applications including FDA compliant for cutting boards, UV stabilized and woodgrain textured for outdoor environments, orthotic and prosthetic for additional support, and antimicrobial for medical facilities. These materials are easy to fabricate using standard machining methods and common woodworking tools.

Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes and colors available upon request.

HDPE Material Properties and Options

Cutting board grade HDPE – meets FDA requirements for direct and indirect food contact, is resistant to hot water and cleaning chemicals, and will not absorb moisture, bacteria or odors. King CuttingBoard® is a solid HDPE sheet for cutting boards, food preparation, and food-processing components. King CuttingBoard® XL provides a lightweight option that is up to 30% lighter than solid King CuttingBoard®.

UV stabilized grade HDPE – performs well in environments where water, UV exposure, and other harsh elements are present, making it a popular choice for playgrounds, outdoor cabinetry, and marine construction. King StarBoard® is a marine-grade HDPE sheet for boat components, furniture, cabinetry, and other outdoor applications. Additional options include King StarBoard® ST for increased stiffness and scratch resistance and King StarBoard® AS with an anti-skid surface. Seaboard® Grip-X® marine board is a UV-stabilized textured sheet for enhanced traction and slip resistance for steps, walkways, flooring, and swim platforms.

Lightweight marine-grade options are available in closed cell HDPE sheets. King StarBoard® XL provides a lighter-weight option for visible marine components, while King StarLite® XL is an economical utility sheet for marine components and other applications where edges are not visible. Environmentally stabilized Seaboard® LITE is 20 – 35% lighter than traditional HDPE sheets. Seaboard® Utility is a lightweight marine-grade HDPE sheet for non-UV exposure applications.

Engravable HDPE – King ColorCore® and PLAYBOARD® Polycarve®  are multi-color, UV-stabilized HDPE sheet with contrasting color layers for engraving. These durable, weather-resistant materials are easy to machine, do not require painting or refinishing, and are well suited for signage and wayfinding, point-of-purchase displays, carnival games, playground components, and children’s furniture.

Pipe Grade HDPE – King PipeGrade® is a chemical-resistant, UV-stabilized PE100/PE4710 HDPE sheet for demanding piping, outdoor, and industrial applications. Typical components include end caps, flanges, guides, wear plates, gussets, machine parts, manhole lids, tanks, and containers. The material is easy to fabricate and thermoplastic weld and is made with materials that comply with NSF/ANSI Standard 14 for potable water piping systems.

HDPE for O&P – is somewhat stiffer and tougher than polypro (homopolymer polypropylene) and often used for applications where additional durability and support are required.

CMPE-500™ – is commonly used for foot plates for in-shoe orthotics, AFOs, UCBLs, and SMOs. When formed, its high molecular weight ensures lasting shape and rigidity for desired patient outcomes. Unlike other materials with equal stiffness, CMPE-500™ maintains stiffness without brittleness. Its fatigue properties exceed those of polypropylene.

Antimicrobial HDPE – King MediGrade® antimicrobial HDPE sheets protect surfaces against stain and odor causing bacteria, algae and fungi. The antimicrobial agent is bonded at the molecular level so it retains its effectiveness throughout the life of the product, unlike surface coatings. Like other HDPE material, it machines well with traditional woodworking tools and its durability makes it a good choice for cabinetry, medical facilities, hospitals, medical carts, nursing homes, locker rooms, and more. Many King HDPE products can also be upgraded to include their proprietary antimicrobial additive, King MicroShield®, upon request.

SIMOGUARD™ Antimicrobial Additive – is available for many grades of HDPE, including FDA approved cutting board, playground board, and lightweight marine board. SIMOGUARD™ antimicrobial technology contains a proprietary EPA-registered ingredient integrated throughout the sheet that inhibits microorganism growth. Over time, materials treated with SIMOGUARD™ maintain a clean, durable, and more hygienic surface compared to untreated materials.

TimberLine® Woodgrain HDPE – has authentic woodgrain color and texture and is virtually maintenance-free. This material can be fabricated using standard woodworking tools and has the flexibility to be heated and shaped for custom projects. Unique variegated color sheet to sheet. Will not delaminate, chip, rot or swell. Ideal for outdoor furniture, cabinetry and storage, building and construction elements, and playground systems.

Reprocessed HDPE – Polystone® G Utility Black HDPE delivers robust performance for the chemical, mechanical, construction, aquaculture, and water technology industries, providing a reliable choice for chemical storage and demanding industrial applications.

Recycled Post-Consumer HDPE – Densetec® Post Consumer is a 98% recycled HDPE material fabricated from reclaimed domestic containers offering the same versatility as standard HDPE. It comes in a variety of colors with UV protection for durable, maintenance-free applications.

Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.