Rubber under the beams. Good idea or not needed. - Wharram Builders and Friends2024-03-29T08:44:13Zhttp://wharrambuilders.ning.com/forum/topics/rubber-under-the-beams-good-idea-or-not-needed?commentId=2195841%3AComment%3A118872&feed=yes&xn_auth=nothanks, all. i bought 1/8 i…tag:wharrambuilders.ning.com,2014-07-16:2195841:Comment:1192402014-07-16T03:00:11.674ZMike Haromyhttp://wharrambuilders.ning.com/profile/MikeHaromy242
<p>thanks, all. i bought 1/8 inch neoprene rubber and it looks perfect for the job.</p>
<p>thanks, all. i bought 1/8 inch neoprene rubber and it looks perfect for the job.</p> I have also used conveyor bel…tag:wharrambuilders.ning.com,2014-07-13:2195841:Comment:1188872014-07-13T09:13:23.061ZDon Brazierhttp://wharrambuilders.ning.com/profile/DonBrazier
<p>I have also used conveyor belt rubber under the beams on my Narai and found it wears very well<br/> Thanks for the interesting information on bonding technique</p>
<p>Don</p>
<p>I have also used conveyor belt rubber under the beams on my Narai and found it wears very well<br/> Thanks for the interesting information on bonding technique</p>
<p>Don</p> Thanks for all the advice. I…tag:wharrambuilders.ning.com,2014-07-12:2195841:Comment:1192002014-07-12T13:48:43.095ZMike Haromyhttp://wharrambuilders.ning.com/profile/MikeHaromy242
<p>Thanks for all the advice. I really appreciate all the different opinions. i'll be sourcing those materials but in the meantime, i'll be lining up those hulls. That could take 1 day or 3 weeks, Hard to tell before i start.</p>
<p>Thanks for all the advice. I really appreciate all the different opinions. i'll be sourcing those materials but in the meantime, i'll be lining up those hulls. That could take 1 day or 3 weeks, Hard to tell before i start.</p> good work Alf.tag:wharrambuilders.ning.com,2014-07-12:2195841:Comment:1191972014-07-12T05:20:45.150Zpaul andersonhttp://wharrambuilders.ning.com/profile/paulanderson
<p>good work Alf.</p>
<p>good work Alf.</p> Hi Mike,
Definitely not wetsu…tag:wharrambuilders.ning.com,2014-07-12:2195841:Comment:1188832014-07-12T04:59:55.927ZAlf Bangerthttp://wharrambuilders.ning.com/profile/AlfBangert
<p>Hi Mike,</p>
<p>Definitely not wetsuit material! That is neoprene foam and would disintegrate in short order. You want solid neoprene. I have doubts about recyclyed rubber flooring as that may also come apart under the huge loads it will be subject to. The best bet is conveyor belting which has fabric reinforcing weave built in and is nearly indestructable. I got mine from "Rubber Cal", you can google that. 9mm thick is good. Sika 292 will bond it very effectively if you solvent wash…</p>
<p>Hi Mike,</p>
<p>Definitely not wetsuit material! That is neoprene foam and would disintegrate in short order. You want solid neoprene. I have doubts about recyclyed rubber flooring as that may also come apart under the huge loads it will be subject to. The best bet is conveyor belting which has fabric reinforcing weave built in and is nearly indestructable. I got mine from "Rubber Cal", you can google that. 9mm thick is good. Sika 292 will bond it very effectively if you solvent wash the rubber, then lightly flame it with a propane torch before applying the adhesive. The idea of flaming is not to melt the rubber, just a light pass opens electron valences on the surface that gives the 292 the means to attach chemically. Back that up with countersunk screws and you will not have any trouble. Without the rubber, your beams will chafe and you will have rot potential.</p>
<p>As for the side bearings, UHMW (in UV black) is your best bet. I would suggest fitting those as closely as possible. It might surprise many, but this material also glues very well with Sika 292 using the flame method. A test sample in my shop, of uhmw sika'd to epoxy/glassed ply, would not pry off without destroying the ply. That convinced me to go ahead that way, and it is holding up very well. </p>
<p>Don't compromise on the beam load points and attachment method...the forces acting on these are enormous, and offshore, constant. Small amounts of movement under such pressure can mean big chafe!</p>
<p>All the best,</p>
<p>-Alf</p> Using rubber makes quite a lo…tag:wharrambuilders.ning.com,2014-07-11:2195841:Comment:1188782014-07-11T04:35:30.877ZBjörnhttp://wharrambuilders.ning.com/profile/Bjorn
Using rubber makes quite a lot of sense since it dampens any remaining beam movements and reduces any shock loads. Neoprene describes a certain type of rubber is UV and salt water resistant (as far as I know), it should be available in different thicknesses and shore hardnesses, I would probably go for 6-8 mm thickness and medium to hard hardness (you may have to research the shore hardness). I think there are shops around which sell rubber for industrial purposes and they should also be able…
Using rubber makes quite a lot of sense since it dampens any remaining beam movements and reduces any shock loads. Neoprene describes a certain type of rubber is UV and salt water resistant (as far as I know), it should be available in different thicknesses and shore hardnesses, I would probably go for 6-8 mm thickness and medium to hard hardness (you may have to research the shore hardness). I think there are shops around which sell rubber for industrial purposes and they should also be able to give you some advice (I know of one in Berlin, but I doubt this is much help for you). No Néoprène but thick rubber…tag:wharrambuilders.ning.com,2014-07-10:2195841:Comment:1188742014-07-10T20:58:18.620Zlaurenthttp://wharrambuilders.ning.com/profile/laurent
No Néoprène but thick rubber block , look at " rubber block" on internet there is à lot like thi one : <a href="http://www.fusionbeads.com/Rubber-Block" target="_blank">http://www.fusionbeads.com/Rubber-Block</a>
No Néoprène but thick rubber block , look at " rubber block" on internet there is à lot like thi one : <a href="http://www.fusionbeads.com/Rubber-Block" target="_blank">http://www.fusionbeads.com/Rubber-Block</a> Thanks for the reply boatsmit…tag:wharrambuilders.ning.com,2014-07-10:2195841:Comment:1188722014-07-10T19:57:09.026ZMike Haromyhttp://wharrambuilders.ning.com/profile/MikeHaromy242
Thanks for the reply boatsmith. You mean like wetsuit material? Where can I buy it from?
Thanks for the reply boatsmith. You mean like wetsuit material? Where can I buy it from? We are using 1/16" thick rein…tag:wharrambuilders.ning.com,2014-07-10:2195841:Comment:1188692014-07-10T19:05:48.056Zboatsmithhttp://wharrambuilders.ning.com/profile/qe0j3ojqb10
<p>We are using 1/16" thick reinforced neoprene as a pad for the beam blocks.</p>
<p>We are using 1/16" thick reinforced neoprene as a pad for the beam blocks.</p> Thanks, Ann. That was someth…tag:wharrambuilders.ning.com,2014-07-10:2195841:Comment:1191062014-07-10T03:08:37.003ZMike Haromyhttp://wharrambuilders.ning.com/profile/MikeHaromy242
<p>Thanks, Ann. That was something i wasn't completely sure about either, about the beams touching the sides or not. But your description of "almost touching" is perfect. Glad Arthur left you well. Was thinking of you both.</p>
<p></p>
<p>Thanks, Ann. That was something i wasn't completely sure about either, about the beams touching the sides or not. But your description of "almost touching" is perfect. Glad Arthur left you well. Was thinking of you both.</p>
<p></p>