Group Buy for sorbothane?

jinu117 · Post by **jinu117** » Thu Mar 17, 2005 2:08 pm

In case you don't know what it is...
It is piece of solid sheet or (whatever it is formed) that GREATLY reduces vibration, or considered one of best isolation method short of more exotic method. Many high end audio equipment usually uses this material on various parts as well as electronics used in environment where shock and vibration might cause failure.
It is much much better absorber than polyurethene, etc. However, the cost or availability is not as good. One common use we see are higher priced shoe insole. (they use harder one for form than what we should be looking into so it will be even softer).
You can find more about it by going http://www.sorbothane.com

I've been browsing around and find it disappointing that most places will way overcharge for this stuff as it is for rather specialized market. (cheapest I found was 12"x12"x1/8" for $15.95 before shipping etc which isn't bad but too thin to utilize it in all it's glory)
Now the product i have in mind is 5"x5"x1/2" for $9 in quantities of 25-99 (higher number much cheaper) Direct from them before shipping.
Another option would be 5"x5"x1/4" for $5.58 in quantities of 25-99 (if more price reduces decently)

http://www.sorbothane.com/PDF/StandardProduct.pdf

Obviously I have no use for 25 of it

I would like to know who might be interested in this product. I myself have plans to comsnume about 5-6 of these

(These are best thing to isolate your pump from case or decoupling noisy hdd, or even shock proofing your in car computer system, etc

)

Just post up here on your level of interest and if it looks good we can progress from there on

Zyzzyx · Post by **Zyzzyx** » Thu Mar 17, 2005 2:45 pm

Have you checked out the selection at McMaster Carr ?

A quick search for sorbothane and I find they have a 4"x4"x1/2" sheet of soft 40 durometer for $7.61. I'm quite sure that's the sheet of stuff I picked up, works great. And that's about the same price you're seeing direct. No minimum purchase.

Post by **Rusty075** » Thu Mar 17, 2005 3:03 pm

Mcmaster no longer carries Sorbothane.

If you look at your search results Zyzzyx, you'll see that they sneakily redirected your search to polyurethane instead. I've never bought the 40 duro polyurethane, so I'm not sure how it compares to actual Sorbothane. Sorbothane is a brand name for a specific formulation of polurethane.

Mr_Smartepants · Post by **Mr_Smartepants** » Thu Mar 17, 2005 11:21 pm

Put me down for three.

Those Sorbothane hemispheres look interesting for case feet (ala QuietPC). But minimum buy is too high.

ultraboy · Post by **ultraboy** » Fri Mar 18, 2005 5:25 am

Count me in for 3. Don't have any plan for it yet, but might become handy some day.

DGK · Post by **DGK** » Fri Mar 18, 2005 7:44 am

I placed an order with mcmaster yesterday for some 'Ultra-Soft Polyurethane' part# 8514K55 I know it isn't Sorbothane but from the description is seems about the same thing to me. I will let you know when I get it.

as530 · Post by **as530** » Fri Mar 18, 2005 8:09 am

i just bought a sheet from www.britishaudio.co.uk - £13 for a 6x6 inch sheet. Hasn't arrived yet though. Is a small Stanley knife sufficient to cut through it?

Webfire · Post by **Webfire** » Fri Mar 18, 2005 8:58 am

Well I'm not sure yet, but I think I would take 3. It depends on the extra costs , shipping ...
Do you know how much that approximately would be?

JanW · Post by **JanW** » Fri Mar 18, 2005 10:15 am

jinu117: where are you located? If you're in Europe and shipping costs will stay reasonable (<50% of the price of the foam), I would take one.

Webfire · Post by **Webfire** » Fri Mar 18, 2005 2:02 pm

While browsing through the web I found a german shop who says he sells sorbothane.
Here is a link http://www.dienadel.de/lshop,showdetail ... 56356,.htm
I'm not sure if it's really sorbothane. Can you perhaps have a look.
Her is another picture:

Zyzzyx · Post by **Zyzzyx** » Fri Mar 18, 2005 3:38 pm

Rusty075 wrote:Mcmaster no longer carries Sorbothane.

Which is interesting, as Sorbothane still lists McMaster-Carr as a distributor.

mshan · Post by **mshan** » Fri Mar 18, 2005 3:52 pm

Don't know what they charge for shipping, but these Black Hole isolation dots look pretty cheap and could always be cut down to size:

http://www.tweakshop.com/BlackHolePods.html

~El~Jefe~ · Post by **~El~Jefe~** » Fri Mar 18, 2005 5:58 pm

This is would be great stuff in those areas that seem to rattle, or on psu parts that touch the housing, on the feet of the case, etc.

I would be in on this for a square if anyone could figure out how to negotiate it all.

nuttybing · Post by **nuttybing** » Fri Mar 18, 2005 7:49 pm

Add in me for 3 too

Straker · Post by **Straker** » Fri Mar 18, 2005 11:52 pm

as530 wrote:i just bought a sheet from www.britishaudio.co.uk - £13 for a 6x6 inch sheet. Hasn't arrived yet though. Is a small Stanley knife sufficient to cut through it?

yeah, but it's not so much "cutting" - imagine dried rubber cement, or fresh silicone caulking. it compresses and squishes around and generally avoids the knife, and even if you cut it in a straight line the cross section might still end up hourglass-shaped from being compressed while it was cut. putting it in a freezer for a while first can help, i do that + use a new scalpel to cut it. garden shears or even a pizza cutter might work better, been too lazy to try though

jinu117 · Post by **jinu117** » Wed Mar 23, 2005 11:21 am

Well total of 4 people interested in it other than me for this. I am going to have to drop the idea and just grab over priced sorbothane and get on with my life. In my case, it was to tame the 2 waterpump I have which isn't too noisy but need really good isolation to further reduce the sound (MCP600x2) Foam does work to certain degree but not good enough and isn't as permanent method of attachment. I might gvie it a shot with one in mcmaster carr which is polyuerethane but I have some reservation on that until I get to try.

m0002a · Post by **m0002a** » Wed Mar 23, 2005 11:34 am

Don't give up on foam. They are not all the same. Try the stuff I used in this thread:
http://forums.silentpcreview.com/viewtopic.php?t=10450