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Kayaks are typically made from high-density polyethylene (HDPE) plastic.
The Type of plastic that they use is one way that made it waterproof
Fishing kayaks are boats that are made of a plastic polymer known as linear polyethylene. This type of material tends to be a bit stronger than the usual plastics and as such, these kayaks tend to run a little more pricey.
There are several types of kayaks available for purchase, including recreational kayaks, touring kayaks, fishing kayaks, whitewater kayaks, and inflatable kayaks. Each type is designed for specific activities and water conditions.
plastic
they are not made of plastic, they are made of very thin rubber
PLASTIC
Number of people depends on the type of kayaks that is being used. Some kayaks are built for 1 person having a single cockpit known as sit in kayaks. Tandem kayaks are available to adjust two to three people and their is another type of kayak called sit on top kayak.
a plastic pen is made out of a special type of plastic that is moulded to the shape of a pen! :)
Usually nylon.
polyethylene
plastic