Replies

1. 
   WorkshopJon | Dec 14, 2003 12:00am | #1

   Reed,

   Exactly what is the application, and what type of rubber. There are plenty of adhesives out there that have strengths that exceed many "rubbers."

   Jon

1. 
   Reed | Dec 14, 2003 12:16am | #2

   here is the situation, i am a shot putter (track) for DePaul University and we have these rubber medicine balls with handles that has lead filing and shot inside to give the medicine ball its weight, the problem is that we throw these things for workouts and the rubber plug often pops out of the hole and we lose some shot and filings and it is a pain in the neck to keep filling the ball back up and putting the plug back in, if there was a glue we could surround the plug with and hopefully stop this from happening; that is the best idea i can come up with, any suggestions that would be great, here is the link to the picture of what i am talking about, it is made of a soft rubber that flexes,  thanks Workshop Jon for your help

   http://www.mfathletic.com/catalog/product.asp?pf%5Fid=2095&dept%5Fid=213&mscssid=BTXNA269FA959KJVN6H2HPJBDV0W0GU0

1. 
   IMERC | Dec 14, 2003 12:27am | #3

   Go to a "home center" and find yourself in the glue section. Look for a brand called DUCO. Start reading lables. They have what you are looking for. 

   Who ever invented work didn't know how to fish....

1. 
   Reed | Dec 14, 2003 12:45am | #4

   thanks a lot for your help IMERC, reed

2. 
   BillHartmann | Dec 14, 2003 12:51am | #5

   For something like that I don't think that you need that much strength, but probably flexibility is important.

   My first try would be some RTV (100% silcone).

3. 
   PhillGiles | Dec 14, 2003 01:32am | #7

   UHU has just the thing (if you can find it - they have many different kinds, you want the one for repairing rubber-soled shoes). Or try the Locktite site - they have a glue for just about anything..

   Phill Giles

   The Unionville Woodwright

   Unionville, Ontario

4. 
   4Lorn2 | Dec 14, 2003 05:29am | #10

   One thing to consider is that often the strength of a glue job is less about the glue and more about preparation. That rubber ball was molded and the mold was coated with a release compound, typically a waxy substance, so it wouldn't stick during manufacture. you will need to remove any remaining mold release, or any other foreign materials, from the area you wish to glue.

   Typically a solvent is used. This might be a bit tricky as some rubbers are sensitive to petroleum products and some solvents. I would try alcohol first. perhaps others will have some ideas on what to use. Some release compound will shift with warm water, scrubbing, I would use an abrasive nylon scrubby commonly used to clean dishes, and a little detergent. If the surface still seems waxy or slick keep trying.

   The other trick is to roughen the surfaces being glued.  A light roughing up with emery cloth, a finger nail file is good in some tight spots, light wire brushing or scraping can do a lot to increase the strength of a glue joint in plastics or rubber.

5. 
   sportinwood | Dec 14, 2003 09:13pm | #13

   use a tire repair patch with appropriate cement.  Any glue that hardens will just break when you throw it.  The tire patches stay flexible and the glue sticks extremely well when put on properly.  Clean the area around the plug with appropriate solvent and smooth any texture in the rubber with a scraper.  Apply the cement and allow to dry.  (like laminate glue).  apply the patch and roll it out with a small roller.  DONE and your SHOT will stay PUT!  ;-)

2. 
   WorkshopJon | Dec 14, 2003 01:00am | #6

   Reed,

   Epoxies, while strong, are also hard and brittle. Not a good choice. The first (easiest) thing that comes to mind is rubber cement like they use to repair tire tubes. Just be sure to coat both surfaces and place the plug in with the surfaces wet, and let it set up for a few hours..

   Next choice, Methacrylate adhesive. This stuff will even bond to Teflon and nylon. It requires proper precautions to use (ie.for industrial use only), and my be a little hard to acquire, but if you want something that will positively work.....go for it.

   I include two pics to help you in your quest if that is the route you want to take.

   Jon

3. 
   KRettger | Dec 14, 2003 03:23am | #8

   You can buy a can of 3M brand spray on contact cement at Home Depot. Go to the paint section where they have adhesives, you'll find several different kinds of 3M type adhesive.

   Read the label on them and you will find one of them is for rubber. We use this one at work for applying rubber cove base. Works great. Easy and cheap.

   For your use spray the plug, and hole you're going to put it in, wait about 30 to 45 seconds, spray again and then stick plug in hole. Let it set according to waiting time in directions and I assure you that plug ain't going nowhere.

   Cork in Chicago.

1. 
   Reed | Dec 14, 2003 04:12am | #9

   wow you guys sure do know alot and thanks for the great help, i knew i could come here and get the answer to this problem, thanks again guys, i will respond how it comes out, thanks reed

4. 
   SamT | Dec 14, 2003 10:20am | #11

   A product called Goop. Shoe Goop was the starting line, now they have Shoe, Home, and, Auto Goop. Available at all the XXXMarts, auto stores, some grocers in the houshold or auto sections.

   SamT

   "You will do me the justice to remember that I have always strenuously supported the right of every man to his opinion, however different that opinion may be to mine. He who denies to another this right, makes a slave of himself to his present opinion, because he precludes himself the right of changing it."   Thomas Paine

1. 
   MarkH | Dec 14, 2003 05:48pm | #12

   I second the goop. You can use the leftover goop to fix your tennie soles. That stuff sticks! And it's flexible and easily found at most any store, heck even the grocery sells it.

5. 
   mikerooney | Dec 15, 2003 07:42am | #14

   Reed,

     Tire repair services use a "hot patch" system. Don't know much about it, but check them out. There must be a lot of stress on that thing when it hit the ground.
1. 
   Reed | Dec 19, 2003 07:57am | #15

   i just want to say thanks again for your info and suggestions looks like from what you guys have told me i will have this problem taken care of in no time, i really appreciate all of the suggestions, this helps my team and I out greatly.  I will post the success of this soon. thanks again  reed