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Post by the light works on Nov 16, 2014 15:32:30 GMT
The problem with using velcro as 'straps', or tying it around say a metal pole, is that you are not going to be testing the strength of the velcro bond. Rather you would be testing the strength of the material the velco is made from. It might be possible to overcome the potential problems of glue ripping the paint off the top of a car by having the velco glued or secured to a board and then clamped at the edges to the car roof, or have cables/chains passing through the inside of the vehicle. This would also bypass the need mess around trying to get both sides of the velcro flat enough that their entire surfaces are in contact. Such a rig would allow them to concentrate on simply making 'generic' velcro boards over a day or two, then simply load them into the back of a truck to take to the test area. This would simplify logistics and time constraints, as they wouldn't have to mess around either by trying to get the vehicles into the shop to be fitted. Or having to try and fine-tune the rig on location. (Which wastes time). I'm actually thinking that this would be the most practical way to test this; cheap, simple and faster than the alternatives. Glue, for example, would have to be left to set and have to be applied to the entire roof of the car evenly. It would also mean that they didn't have to worry too much about the shape of the vehicle's roof or if it had a sunroof or not. That would probably lower costs futher since they wouldn't have to worry about particular models being unsuitable, and could just use whatever is available. to take it a step further - if they made their lifting hardware in concentric rings, then scaling it up or down would be pretty easy. (as in make the bottom plate your maximum size, then you just start with either your maximum size upper and remove rings, or your minimum size upper and add rings; until the car either lifts or falls - depending on which direction makes for better TV.
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Post by silverdragon on Nov 17, 2014 7:47:23 GMT
erm... isnt that an integral part of the strength... the strength of both the "adhesive" part and the strength of the material are mutually important....
Going for the only comparable test, what was the test with duck tape, snapping tensile strength or glue failure?...
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Post by the light works on Nov 17, 2014 15:28:45 GMT
erm... isnt that an integral part of the strength... the strength of both the "adhesive" part and the strength of the material are mutually important.... Going for the only comparable test, what was the test with duck tape, snapping tensile strength or glue failure?... similar but different. with the duct tape test, you are testing the tape. with the hook and loop fastener part, you are testing the hook and loop grip - not necessarily the substrate it is on; as it is designed to be secured to strong enough material to accomplish what is necessary.
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Post by The Urban Mythbuster on Nov 17, 2014 15:45:28 GMT
erm... isnt that an integral part of the strength... the strength of both the "adhesive" part and the strength of the material are mutually important.... Going for the only comparable test, what was the test with duck tape, snapping tensile strength or glue failure?... similar but different. with the duct tape test, you are testing the tape. with the hook and loop fastener part, you are testing the hook and loop grip - not necessarily the substrate it is on; as it is designed to be secured to strong enough material to accomplish what is necessary. When velcro is used on clothing items & footwear, it is usually sewn in place to add longevity to the item.
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Post by the light works on Nov 17, 2014 15:48:35 GMT
similar but different. with the duct tape test, you are testing the tape. with the hook and loop fastener part, you are testing the hook and loop grip - not necessarily the substrate it is on; as it is designed to be secured to strong enough material to accomplish what is necessary. When velcro is used on clothing items & footwear, it is usually sewn in place to add longevity to the item. except on my fire department raincoat where it was glued onto the straps with water soluble glue.
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Post by The Urban Mythbuster on Nov 17, 2014 16:18:45 GMT
When velcro is used on clothing items & footwear, it is usually sewn in place to add longevity to the item. except on my fire department raincoat where it was glued onto the straps with water soluble glue. Wait a second! fire department...water soluble glue...something seems amiss here...
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Post by the light works on Nov 18, 2014 0:56:06 GMT
except on my fire department raincoat where it was glued onto the straps with water soluble glue. Wait a second! fire department...water soluble glue...something seems amiss here... you missed "raincoat"
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Post by The Urban Mythbuster on Nov 18, 2014 2:42:33 GMT
Wait a second! fire department...water soluble glue...something seems amiss here... you missed "raincoat" I'll bet the guy who came up with that idea worked for NASA until he decided it wasn't challenging enough...
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Post by silverdragon on Nov 18, 2014 8:57:06 GMT
I'll bet the guy who came up with that idea worked for NASA until he decided it wasn't challenging enough... So someone who gets wet for a living needs a water soluble adhesive.... Thats about as much use as a ash tray on a motorcycle.
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Post by the light works on Nov 18, 2014 15:46:32 GMT
I'll bet the guy who came up with that idea worked for NASA until he decided it wasn't challenging enough... So someone who gets wet for a living needs a water soluble adhesive.... Thats about as much use as a ash tray on a motorcycle. I have seen motorcyclists with a cigarette between their teeth. no, this is not so exotic as it is a simple case of a clothing manufacturer being shortsighted.
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