What is Keder?
Keder consists of two parts: a core and fabric. The core is made from extruded PVC, or another elastic material, to allow flexibility. The core is then wrapped in Keder fabric, which has exposed fibers on the outside to allow the Keder to easily slide into an extrusion with a luff groove – keder track. It has coating on the inside, to ensure proper adhesion during welding. For maximum strength, there is a Double Coated Keder available.
Frequently Asked Questions
What is keder used for?
Keder is attached to fabric to create a continuous water proof connection between fabric and frame. Keder is used in a variety of applications including both permanent & semi-permanent tents & structures, banners, building wraps, facades, awnings, curtains and marine products.
I think I've heard of this product before, is it called something else?
Indeed, “Keder” is not the only word for this product, other common names include “kador”, “ketter”, “sail rope”, “kedder”, “edge reinforcement”, “”hem rope”, “keter” and “welting”. We use the term “Keder” because it is the most commonly used, and most recognized in the industry.
How is keder 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.
How do I know which size of Keder to choose?
If you are replacing keder on a current project, measure the diameter of the current PVC 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.
Single, Double, Repair or Welded Flap? How do I know which style of keder to use?
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 Keder – Awning, banner & canopy industries, unless the keder will be continuously exposed to outdoor elements, then we recommend Double Flap Keder for extra protection.
Double Flap Keder – Tenting & structure, industrial curtain, pool cover, tarpaulin and trampoline industries.
Welded Flap Keder – Marine industry. The welded flap keder MUST to be sewn onto fabric. The majority of marine companies use welded flap keder rather than welding themselves.
Does Keder Solutions require a minimum to make a purchase?
No minimum required. We can accomate any and all orders!
What is your lead time?
99% of orders ship the SAME day. Our machines run 24 hours a day, 5 days a week. Custom orders may take longer, based on the request.
Does Keder Solutions ship internationally?
Yes we do! Keder Solutions’ Keder has been shipped worldwide!
Why choose Keder Solutions?
- Highest quality
- Custom orders
- 99% of orders shipped the SAME day
- International Shipping
- Fast turnaround
- Custom sizes, styles
- 65+ combined years in the industry
- Use the most superb materials
- We manufacture ALL of our keder in house
- EXCELLENT service, ask our current customers!
- We support numerous industry associations. Continuously keeping up with trends and innovations in the industry
How do I know which Keder Rail to choose?
Most Keder Rails work with multiple sizes of Keder. It’s a good idea to choose a size smaller than the Rail because we do have a tolerance on our Keder. For example: our 13mm rail has a diameter of 14mm. We suggest using a 13mm or 11mm Keder.
What is the difference between Laminate and PVC Coated?
PVC Coated Fabric is a more heavy-duty fabric that is usually used on the tops of a tent/structure and Marine Applications. Laminate Fabric is used for many applications such as: soft signage, banners, smaller tents or sidewalls, tarps & covers. Both vinyls have translucent and blockout options.