PVC Coated Vinyl Fabric is a more heavy-duty fabric that is usually used on the tops of a tent/structure and Marine applications. Laminate Vinyl Fabric is used for many applications such as: soft signage, banners, smaller tents or sidewalls, tarps & covers. Both vinyl types have translucent and blockout options.

How is keder connected welded to fabric?

The method for welding keder to fabric depends on the style that is being used. Double Flap Keder is generally welded using a radio-frequency welder due the fact that, three layers of fabric are welded at the same time. However, Single flap keder can be welded using wedge welders or hot air welders, requiring only a simple overlap weld. Keder can also be sewn to fabric.

Which size of keder is best for the project?

If you are replacing keder on a current project, measure the diameter of the current PVC Keder Cord. For new keder projects, look at the rail/frame system that the keder will be sliding into. Make sure to order keder that is just a slightly smaller than the diameter of the channel. We would be happy to assist you with your selection.

Which style of keder is best to use? Single, Double, Repair or Welded Flap?

There is really no “correct” answer for this, it is a personal choice based on your project. However, we recommend using specific styles for certain applications.

Single Flap KederAwning & shade, banner & signage, canopy industries, unless the keder will be continuously exposed to outdoor elements, then we recommend Double Flap Keder for extra protection.

Double Flap KederTent & Structure, industrial curtain, pool cover, tarp & tarpaulin and trampoline industries.

Welded Flap Keder – The welded flap keder MUST to be sewn onto fabric. The majority of Marine companies use welded flap keder rather than welding themselves.