Modern tarps, ubiquitous and essential, have evolved significantly from their bulky canvas predecessors. Today, the most common type is made from woven polyethylene, often referred to as polytarp, prized for its affordability and versatility. While canvas and vinyl tarps still exist for specialized applications, the advent of polymers revolutionized tarp design. Early canvas tarps were heavy, treated with tar or paint for waterproofing, and prone to moisture retention, mildew, and stiffness in cold weather.
The introduction of nylon, polyester, and polyethylene coatings in the 1960s marked a turning point. Polymers enhanced durability, reduced weight, and offered improved weather resistance. Woven polyethylene eventually became the dominant material for tarp construction due to its cost-effectiveness and performance characteristics.
Recent advancements in polymer science have led to even more sophisticated tarps. The best tarps now feature a three-layer, laminated, high-density polymer weave for exceptional multidirectional strength. Heavy-duty aluminum grommets are strategically placed around the perimeter, typically spaced 36 inches apart, ensuring secure tie-down points. Reinforced hems with extra-heavy polyester roping further enhance durability.
Modern polyethylene tarps boast inherent cold-temperature flexibility, remaining crack-resistant down to -20 degrees Fahrenheit. They exhibit excellent resistance to water, mold, mildew, rot, acids, and UV rays, making them suitable for even the harshest and wettest environments. Many high-quality tarps are silver, reflecting sunlight and keeping covered items cooler compared to darker or transparent alternatives.
Available in a wide array of thicknesses, densities, colors, shapes, and sizes, modern woven polyethylene tarps offer unparalleled value. Their versatility makes them suitable for countless applications, a testament to the advancements in polymer science.