rubberized fabric

[brankulo]

anyone have idea what is the fabric used on viscacha top panel on this image https://www.google.com/search?q=VISACHA+SEAT+BAG&es_sm=122&tbm=isch&imgil=LBkKkXY2sdzgYM%253A%253Bp2RsXYmzAvdBfM%253Bhttps%25253A%25252F%25252Fwww.revelatedesigns.com%25252Findex.cfm%25252Fstore.catalog%25252FSeat-Bags%25252FViscacha&source=iu&pf=m&fir=LBkKkXY2sdzgYM%253A%252Cp2RsXYmzAvdBfM%252C_&usg=__oa_MBnizjgJfLkr5TNFNzUwpOr8%3D&biw=1323&bih=708&ved=0CDkQyjc&ei=VmcgVJ7QEa_SigLnnYHIBA#facrc=_&imgdii=_&imgrc=LBkKkXY2sdzgYM%253A%3Bp2RsXYmzAvdBfM%3Bhttps%253A%252F%252Fwww.revelatedesigns.com%252Flayouts%252Frevelate%252Ffiles%252Fstore%252Foriginal%252Frevelate-1-1.jpg%3Bhttps%253A%252F%252Fwww.revelatedesigns.com%252Findex.cfm%252Fstore.catalog%252FSeat-Bags%252FViscacha%3B1200%3B811?
looks like rubber dot coated?

[fastmtnbiker33w]

I know what it is.  It's expensive even direct through the distributor.  You can get a yard of it for about $35 from a company in Texas at retail pricing.  I don't use it on my seat bags because that part is not really being pressed against the seat as much as it's being pulled away.  I use heavy vinyl on my seatbags.  I'd be happy to send you a scrap large enough for you to use to make your own.  Just pm me.

[brankulo]

na, its cool man, was just wandering what it was. i meant to use it at the skinny portion where bag touches the seat tube.
i have finished my first seat bag yesterday. test rode with it today and it doesnt really seem to be necessary. there is no movement there at all. will try to post new thread showing my bag tonight.

[fastmtnbiker33w]

Ah.  I use the same grippy stuff used on the straps at that point.  I've got plenty of that as well if you want to buy some from me.

[brankulo]

isnt that the same dotted fabric on seat post straps?

[fastmtnbiker33w]

Yes.  The stuff on the top of the bag where the seat rail straps are woven is a different fabric.

[Smo]

Another vote for heavy vinyl for the top of seatbags.

As for the straps, seattle fabrics sells Slip-not fabric that's 36oz/yd, and it seems pretty heavy duty.  And they sell it by the quarter yard (although SF has a $4 handling charge, so unless you need other things from them it would be a bit expensive).  It's definitely not the same stuff (smaller bumps), but I think it would work fine for added friction on straps.

[elitheknife]

I know what it is.  It's expensive even direct through the distributor.  You can get a yard of it for about $35 from a company in Texas at retail pricing.  I don't use it on my seat bags because that part is not really being pressed against the seat as much as it's being pulled away.  I use heavy vinyl on my seatbags.  I'd be happy to send you a scrap large enough for you to use to make your own.  Just pm me.

Jesus...c'mon man...don't be so cryptic.  It's called Rhinotek and it's available from HTI Global, if you can manage to snag their attention.

[Krampus Snail]

Why is the rubberized fabric being used on the Revelate bags? There's the dotted fabric used on the little section where the bag hits the seatpost, and then the fabric with the tiny triangles (is that the Rhinotek?) that is used on the front top and front bottom. What purpose are these fabrics serving? Why would a less expensive abrasion-resistant fabric not be used?

I'm trying to figure out what fabrics to use for a seat bag that sits on a rack. XPac for the main body I guess, but what for the part that touches the rack?

[Smo]

The tiny triangles is the rhinotek.  And basically it's not that expensive for Revelate.  $35 per yard sounds like a lot, but that's for one yard; I'm sure they get it cheaper in bulk.  And even at that price, a single yard would be enough for quite a few seatbags.  So the cost per seatbag for them is probably less than a dollar.

For your application I would suggest ballistic nylon (and I would put Xpac on the inside).  If you just need a small quantity, Quest Outfitters often has remnants of it for sale.

[Krampus Snail]

So you're saying Xpac for the body of the bag, and a strip of ballistic nylon topstitched on as a reinforcement for the bottom where it sits on the rack? I guess I should also reinforce with ballistic nylon in the places where I'm putting on the straps that strap the top (the lid) down?

[Smo]

You could do a strip of ballistics topstiched on like you said, or make your bag with seams on each side of the bottom (so it's a separate piece of Xpac as well).  Then you would just sew Xpac to ballistics before you put the bag together.  Either way would work fine.

I'm not sure if you'd need to protect the top more or not.  I've done something similar using VX42 Xpac (a little more durable than VX21, which is pretty much the de-facto bikepacking standard).  I don't have enough use with it to say 100% that it doesn't need reinforcement, but so far, so good.

[Krampus Snail]

I need to attach webbing to the top and the rear, to buckle together to close the bag. I'm worried that just top stitching the webbing to the middle of the xpac wouldn't be strong enough and the webbing would just rip off unless I reinforced somehow.

[Smo]

In that case yeah, that should probably get some reinforcement.  I was imagining compression straps running over the top.

Another closure option is a drybag-style roll-top.  That gives you the advantage of having a rolled hem where you sew on your buckles.

[brankulo]

yard of rhinotek goes for around $24
now if i understand correctly from this thread rhinotek is used on top of the bag and where bag touches the seat and on straps is different fabric? what fabric is that? what is the difference between two?

[micamino]

yard of rhinotek goes for around $24
now if i understand correctly from this thread rhinotek is used on top of the bag and where bag touches the seat and on straps is different fabric? what fabric is that? what is the difference between two?

it is toughtek http://www.ahh.biz/fabric/rubberized/toughtek_mini_pique.php