That must be some good seam tape, why do they stitch it then? Do they use seam tape on the tube seams too? Bridle attachments?
What is the seam tape they use?
Are you really interested?! Tissue (non-woven) carrier with takified/moified acrylic adhesive, ~150 μm. I can give you some 3M and TESA product references, but the Bainbridge one is just as good and cheaper. Btw, with UV exposure the bonding strength increases a lot!kiteykitekite wrote: ↑Sun Mar 29, 2020 1:35 pmThat must be some good seam tape, why do they stitch it then? Do they use seam tape on the tube seams too? Bridle attachments?
What is the seam tape they use?
Well that is the problem with glues. On something like a kite they will degrade fast. You also carefully dodged my question on why do they stitch the seam. If the glue worked they wouldn't require stitching. As it is the stitching is the primary and only needed contributor to strength. Tape is used the facilitate manufacture, because graphic designers are the primary driver of kite sales. Graphic designers are also the primary designers of kites, and so have deluded themselves into many strange ideas. Like about illusionary aerodynamic benefits of fat tubes and now apparently the same about double sided tape.nixmatters wrote: The newer the kite (the more crispy the canopy), the worse it is.
nixmatters wrote: ↑Wed Mar 25, 2020 9:39 amThese silicone coatings cannot (or should not) be thinned. Most silicone adhesive systems are not solvent based.
nixmatters wrote: ↑Fri Mar 27, 2020 9:14 amI'm not that fluent with silicone coatings and adhesives.
I have found solvent based silicone quite common, to which you provided examples. The method of surface coating fabric as been commonly used on the fabric used for kites is quite inferior. Coatings should be in the fabric not on the fabric. But I wouldn't expect graphic designers to know better, there primary life skill is putting coatings on things.nixmatters wrote: ↑Fri Mar 27, 2020 9:14 amDoctors blade coating is what all manufacturers of kite canopy cloth use, whether silicone or PU based, but good luck to anyone who wants to try it on a kite
Is my English that bad?! My above quote was clearly referring to a LEI canopy seam (a multidirectional 'zig-zag' lockstitch done with a needle and 2 threads, joining 2 pieces of polyester ripstop) and NO adhesive tape whatsoever.kiteykitekite wrote: ↑Sun Mar 29, 2020 9:19 pmWell that is the problem with glues. On something like a kite they will degrade fast. You also carefully dodged my question on why do they stitch the seam. If the glue worked they wouldn't require stitching. As it is the stitching is the primary and only needed contributor to strength. Tape is used the facilitate manufacture, because graphic designers are the primary driver of kite sales. Graphic designers are also the primary designers of kites, and so have deluded themselves into many strange ideas. Like about illusionary aerodynamic benefits of fat tubes and now apparently the same about double sided tape.nixmatters wrote: The newer the kite (the more crispy the canopy), the worse it is.
So we will know when glue can hold the seam as you suggest, the kite wont need or have stitching, especially on areas requiring HIGH STENGTH like the LE. So when a kite is just glued together get back to me and I will no longer call your bullshit.
Foilholio, it is common, true that. I just don't have hand on experience with solvent based silicone coatings for indistrial application in textiles. Mostly due to VOC being very restricted in Europe since years.kiteykitekite wrote: ↑Sun Mar 29, 2020 9:19 pmI have found solvent based silicone quite common, to which you provided examples. The method of surface coating fabric as been commonly used on the fabric used for kites is quite inferior. Coatings should be in the fabric not on the fabric. But I wouldn't expect graphic designers to know better, there primary life skill is putting coatings on things.
This is the point if the adhesive used comes apart so easy then it can't be expected to add much if anything to the strength. If it was the opposite, then stitching would not be present. The fact remains stitching is only used on the most high load parts of a tube kite, stitching is also only usually used on all parts of a foilkite. A foil kite and tube are subject to similar loads, particularly on the canopy. It is reasonably to conclude that stitching is the primary and superior way of joining fabric.nixmatters wrote: To your question "why do they stitch the seam":
1. Canopy/spinnaker seams: in layman's terms - to prevent the adhesive tape from peeling off.
I think you are in a fantasy with that statement.nixmatters wrote: On an old kite with deteriorated adhesive tape properties, the coating has deteriorated as well and the tear resistance of the ripstop has actually gone up - the adhesive tape and stitching are working in symbiosis.
Did you use the regular or gold version?Sfollis wrote: ↑Sun Mar 29, 2020 4:05 pmI used this on an older Ozone Chrono V1. Very easy to apply with a paint brush. The main reason I used it was to improve the water repellent properties of the material which it did. There was no discolouration to the fabric and little dour.
C5A086BA-4056-41FE-8097-553A2D9EF4B6.jpeg
Users browsing this forum: No registered users and 154 guests