Material Design and Construction
Pacific Netting Products (PNP) offers the Fast Water Series Public Safety Barriers, which provide low-maintenance, all-season protection. These barriers work in both high- and low-flow conditions. By minimizing moving parts and failure points, they deliver a long service life of up to 50 years. They are watertight, corrosion-free, rot-resistant, and UV-stable, capable of withstanding extreme temperatures as low as -140°F. With customizable diameters and wall thicknesses, these barriers meet specific site requirements and budgets. The Fast Water Series can restrict boat access while allowing debris to flow downstream, serving as an effective public safety solution.
Co-Extrusion Process for HDPE
PNP uses co-extrusion technology for the Fast Water Series, crafting public safety barriers from high-density polyethylene (HDPE) for optimal visibility and regulatory compliance. Colors like yellow (RAL 1021) and orange (RAL 2009) meet federal standards, while custom colors are available upon request. Co-extrusion provides the strength of standard black HDPE with the added benefits of vibrant color and long-lasting surface resilience. Additionally, black HDPE fusion-welded end caps enhance object recognition. Customers can also request custom colors and graphics.
Filler Materials
Each Fast Water Series barrier is constructed from HDPE PE4710 material and filled with closed-cell, expanded polystyrene foam for superior buoyancy and UV protection. With a smooth, non-stick surface, the barriers resist fouling and endure high-velocity water environments. They can roll on a chain or wire rope but are also modifiable with a “lock in place” connection for stationary use in still waters like reservoirs or pools. Available in various lengths, these barriers provide up to one million pounds of tensile strength. For remote locations, PNP can customize dimensions for easier deployment and retrieval.
Lentic vs Lotic Waterflows
“Lentic” refers to slow or still waters, such as lakes and ponds, while “lotic” refers to fast-flowing waters like rivers and streams. PNP designs barriers suited for both environments, ensuring versatility across different water conditions. – source SpringerLink.com
HDPE Co-Extrusion Manufacturing
PNP uses a customized co-extrusion process for superior HDPE barrier production. This process involves feeding plastic pellets into a forming mechanism where compression screws melt and shape the material. By using multiple extruders for different pigments and additives like UV inhibitors, PNP creates a durable, homogeneous product. Unlike traditional HDPE, co-extruded barriers resist chipping, peeling, and fading. This makes them an excellent choice for applications requiring visibility, safety, and impact resistance.
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