This section shows how tarps are made and how a tarp factory works. Poly tarps require a large warehouse to manufacture the material properly.
The basic key points for manufacturing poly tarps:
Below is a simple step-by-step process on how polyethylene tarps are made.
Resin-poly beads. These beads will be melted, dyed, and spread out over the nylon mesh to create a poly layer that makes a poly tarp.

Poly/Resin beads are melted and dyed.

The resin beads are melted and dyed to create the poly tarp coating.

Below is a machine-operated tarp folder. These make sure a tarp is folded tightly, which reduces damage in transit.

A dyed poly spool that creates the poly layer on the tarp.

Yellow poly tarp threading rolling on spreaders.

Tarp mesh threads are getting rolled through the poly tarp machine.

Melted resin and poly beads now squeeze out poly tarp sub-material.

There are many other types of manufacturing processes for different types of tarps. The process for polyethylene, canvas, vinyl, and other tarp materials can vary.