FamilyBiker Posted May 20, 2013 Report Share Posted May 20, 2013 (edited) googled a lot and found some old topics involving ali c using urethane from ebay,if i remember correctly. i want to get some urethane sheet from a company that produces industrial grade rubbers and stuff,making my own refills,so i´m asking about what durometer/material description etc i should look for. thought about 85 shore a... from a sheet for 25 euro one could make something like 100 sets of pads,how awesome would that be? cheers for comments and opinions,and especially for advice! Edited September 7, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
N.Wood Posted May 20, 2013 Report Share Posted May 20, 2013 Oh look its 2007. 6 Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 come on,its not a bad idea at all. and i mentioned it being old :wink2: Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted May 20, 2013 Report Share Posted May 20, 2013 The problem then, and presumably still now was/is that an 85A from one company doesn't necessarily line up with an 85A from another, despite the fact that it kinda should. By the time you throw in other additives that can alter the properties of the material (even down to things like the colouring) it's a little hit and miss really, so you've just got to aim for a certain ballpark and work from there using a trial and error technique rather than it being an exact science. Pick up some cheap small samples from somewhere and go from there - if you stumble upon the right material quickly you may save a few quid but if it's going to take forever, be hassle to cut to fit and cost a fair bit in samples/material then you may decide it's not worth the fuss like most people did years ago Quote Link to comment Share on other sites More sharing options...
Jake. Posted May 20, 2013 Report Share Posted May 20, 2013 Only image I can find, but Steve@heatsinkbikes used to sell blocks of material for around £10 that would give you 8 pads or so. 1 Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 thats what i´m talking about! only cheaper haha. joking aside,would be great to get some info what exact properties established pads have,too sad noone can find out... Quote Link to comment Share on other sites More sharing options...
AndrewEH1 Posted May 20, 2013 Report Share Posted May 20, 2013 Didn't some try cheese recently? Or was it a rubber? 1 Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 thats from ashima,hmmm,is the number the hardness? Quote Link to comment Share on other sites More sharing options...
bing Posted May 20, 2013 Report Share Posted May 20, 2013 Only image I can find, but Steve@heatsinkbikes used to sell blocks of material for around £10 that would give you 8 pads or so. I've still got 4 pieces of the snowie material, and 1 set of reds that I've very gashly knocked up into some pads Quote Link to comment Share on other sites More sharing options...
Peter_PR Posted May 20, 2013 Report Share Posted May 20, 2013 This is something that I also thought like one year ago! And I think that actually some pads companies do the same, so why not us? Looking at some old VIZ brand pads that I have, there is written "hardness 85" and I'm really sure that is polyurethane with that shore... I remember that them were too hard, maybe trying with less shore.. I also contacted with some local companies, but only offers big sheet, the good was that I could choose colors besides to the shore. Have you got any link for ebay PU? Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 (edited) http://www.ebay.de/itm/1-4-x-4-1-8-X-48-URETHANE-POLYURETHANE-85-A-BLUE-SHEET-/370692034279?pt=LH_DefaultDomain_0&hash=item564ef78ee7 http://www.ebay.de/itm/PUR-Polyurethan-PU-80-Shore-Platte-420x-240x-5mm-/220789428923?pt=Kunststoffe_Chemie&hash=item33681352bb atm i´m testing some pads that actually feel pretty soft,their bite and hold is awesome though. need to find out the pu grade of those pretty sure theyre selfmade from someone,glued to a plastic backing Edited May 20, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
Blake Posted May 20, 2013 Report Share Posted May 20, 2013 I've still got 4 pieces of the snowie material, and 1 set of reds that I've very gashly knocked up into some pads give us some snowie. Quote Link to comment Share on other sites More sharing options...
bing Posted May 20, 2013 Report Share Posted May 20, 2013 Ill have a look in the shed. By the way, that fitting still hasn't turned up yet Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted May 20, 2013 Report Share Posted May 20, 2013 thats from ashima,hmmm,is the number the hardness?No. 2 Quote Link to comment Share on other sites More sharing options...
Blake Posted May 20, 2013 Report Share Posted May 20, 2013 Ill have a look in the shed. By the way, that fitting still hasn't turned up yet thanks Seriously? that really sucks f**king royal mail. I believe we have until 14 days till we can complain Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 (edited) No. thought so,got exactly those yellow pads in my hand right now and theyre like a skateboard wheel,pretty hard,fast rebound. why do you think it isnt the durometer,out of interest? Edited May 20, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
Blake Posted May 20, 2013 Report Share Posted May 20, 2013 (edited) thought so,got exactly those yellow pads in my hand right now and theyre like a skateboard wheel,pretty hard,fast rebound. why do you think it isnt the durometer,out of interest? There seems to be no applicable relationship between the number and designated use of the pads. I'm extremely tempted to get some of this and just go for it, would they fit in CNC backings? http://www.ebay.co.uk/itm/Polyurethane-Sheet-12-x-12-0-375-93-Shore-A-Red-/160935556243?pt=LH_DefaultDomain_3&hash=item257881b493 EDIT- that was such a stupid question. Edited May 20, 2013 by DrStix Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 (edited) should be pretty hard (t)hat. i think cutting or grinding it to shape would be no problem though Edited May 20, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
Peter_PR Posted May 20, 2013 Report Share Posted May 20, 2013 Sure that with patient will fit, but hardness 93.. pretty hard maybe? Quote Link to comment Share on other sites More sharing options...
Blake Posted May 20, 2013 Report Share Posted May 20, 2013 hmmm, will keep scouting Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 (edited) something between 80 and 85 (both shore a)would be good i guess.... any harder would be like a plastic backing,and under 70 we´re in pencil eraser territory lol edit:interesting find:http://www.alibaba.com/product-gs/800511059/Hardess_Shore_40_80A_Pure_Gum.html check the chart below,tensile strengths and co edit 2:oh,seen its gummy rubber will continue searching Edited May 20, 2013 by FamilyBiker Quote Link to comment Share on other sites More sharing options...
bing Posted May 20, 2013 Report Share Posted May 20, 2013 Go to a polyurethane/rubber supplier, somewhere like a roller/wheel coating company, and see what off cuts they have knocking about. Worth a try surely? Quote Link to comment Share on other sites More sharing options...
Blake Posted May 20, 2013 Report Share Posted May 20, 2013 http://www.bonaprene.co.uk/shop/3_Polyurethane_Sheets__Blocks ? useful? Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted May 20, 2013 Author Report Share Posted May 20, 2013 Hardness Shore Scale Description 35 A Rubber band 50 A Inner tubes 60 A PVC hose 70 A Car tyre treads 95 A Fork lift truck tyres 60 D Polyethylene rigid plastic 80 D Nylon rigid plastic yeah,and interesting,too Quote Link to comment Share on other sites More sharing options...
Jake. Posted May 20, 2013 Report Share Posted May 20, 2013 Looks like 80 is the magic number then. Quote Link to comment Share on other sites More sharing options...
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