There are several types of materials that are commonly used to make Tarpaulin Sheet covers for cars and outdoor furniture. Each has its own pros and cons depending on your specific needs and budget.
PVC-coated Polyester Tarpaulin
The PVC-coated polyester tarpaulin is a popular waterproof option that provides good protection from rain, snow, dust, and UV rays. The PVC coating makes the material waterproof and durable while still allowing some airflow. It is a tougher fabric that can withstand wind and weather. However, it is on the heavier and more rigid side which may not be ideal for tightly covered vehicles with many curves.
Vinyl-coated Polyester Tarpaulin
Similar to PVC-coated vinyl the material is slightly more flexible and lightweight. It is waterproof but may not be quite as rigid and long-lasting as PVC. Vinyl-coated polyester is a good mid-range option that provides protection without being too heavy.
Heavy-duty Canvas Tarpaulin Natural canvas has a rugged and durable construction ideal for withstanding weather over many seasons. It is breathable to reduce heat buildup and allows some moisture evaporation. Canvas may fade more quickly over time from sun exposure but is a popular choice for furniture due to its attractive natural look.
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PVC-coated Polyester Tarpaulin
PVC-coated polyester tarpaulin is a very popular choice for protective covers because it provides excellent waterproof and UV-resistant properties at an affordable price point.
PVC-coated Canvas Tarpaulin can withstand continuous exposure to rain, snow, humidity, dust, and sun without degradation for several years. Some manufacturers even offer warranties of 5 years or more.
The polyester fabric core offers durability while maintaining breathability for airflow. It is then coated with a layer of PVC (polyvinyl chloride) on both sides to make it completely waterproof.
The rigid PVC makes it better able to hold its shape against wind gusts compared to vinyl alternatives. However, the thickness also means it may not conform as tightly over vehicles with many curves and edges without some effort.
Tarp manufacturer Tyvek uses a PVC coating approximately 10 mils (0.010 inches) thick on its automobile covers. Independent testing shows it can resist over 25 gallons of water per square yard per day. The reinforced weave of 600D polyester fabric underneath provides tear resistance.
Vinyl-coated Polyester Tarpaulin
Similar to PVC in waterproofing function, vinyl polymer coating gives tarps a softer, more flexible feel. At around 4-6 mils thick, vinyl tarps are significantly thinner than PVC for enhanced breathability and conformability.
While vinyl doesn't last quite as long under continuous UV exposure, major companies like Classic Accessories rate their vinyl-coated polytarps as durable enough to protect vehicles and equipment for 3-5 years of general use with proper care. The lightweight material makes it easier to reliably cover irregular or intricate vehicle profiles without sagging or creating ballooned areas.
Here's a more expanded comparison of PVC-coated and vinyl-coated polyester tarpaulin materials:
PVC-coated tarps are ideal for withstanding long-term UV exposure and inclement weather conditions with their extra-thick waterproof barrier. However, vinyl tarps provide the benefits of enhanced breathability, flexibility, and smooth coverage ability, especially for vehicle wraps.
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