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Old 23rd November 2012, 09:23 PM   #21
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I use Weldbond.

Click the image to open in full size.

Thin it out with water and use several coats. I coat the whole surround with it too. If there is a gap you can't bridge with it, use some rice paper to patch things.
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Old 24th November 2012, 01:30 PM   #22
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Thanks.
I was going to use a two part epoxy, I'm in love with it, but Weldbond or a PVA based glued is the way to go if you have paper and cloth (cellulose) to glue together.

I added water to it, to thin it and help the glue seep into the cracks and spaces.
Works really well. I'm impressed. I also put sock between the basket and the bottom of the cone to hold the cone up, so the cracks were exposed more. Then I took the socks out to let it dry. A lot of JBL 2241 and 2226H 2226 have these problems with the surround and cone coming apart. In fact I have a GTI 1500 (similar to 2226 2225 ) with the same problem. Some one just glued the back of the surround and cone joint with silicone.

Gluing rubber to aluminum I have had success with (Loctite) two part epoxy for plastic.
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Old 25th November 2012, 12:59 AM   #23
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I had a set of four 2225 that were cracked about 80% around the cone edge, mostly the cracks were in the cloth roll itself near the cone edge, and not between the cone and the cloth.

I was able to get another five years of use out of them with Weldbond.

Weldbond is also good with foam edges.

It is not good with rubber.
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Old 25th November 2012, 01:12 AM   #24
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I used a flowable silicone rubber for such cracks around the foam and on the foam.
This worked very nicely all that was needed was a very thin layer.
The stuff I used can be had at most any hardware or autoparts store.
It is for the repair of windshield seals.
The one I have is from VersaChem part no.75009.
I have posted this before in another thread with some pictures here,

ESS woofer repair...

Cheers !!

jer

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Old 25th November 2012, 02:37 AM   #25
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Sorry, Weldbond is superior on foam repairs.
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Old 30th January 2013, 06:29 PM   #26
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Quote:
Originally Posted by djk View Post
I use Weldbond.

Thin it out with water and use several coats. I coat the whole surround with it too. If there is a gap you can't bridge with it, use some rice paper to patch things.
Can you patch the whole surround by cutting cloth into a ring and placing it over the whole surround and then applying a PVA glue/water mix over it?
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Old 30th January 2013, 08:35 PM   #27
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Don't know, you would have to try it and see.

When chunks are missing from a foam surround I have used pieces of a thick plastic bag (~5 mil) with good success.

I have used the rice paper with paper edged drivers on the surround and to repair holes in paper cones.
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Old 30th January 2013, 11:15 PM   #28
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Quote:
Originally Posted by djk View Post
Don't know, you would have to try it and see.
I was hoping you would write that

I just though of using rubberized undercoating, but just now again I think it will be too thick and not be very flexible when dry.
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Old 31st January 2013, 07:42 AM   #29
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PVA is nice, it remains flexible when it sets up. By thinning it out and applying several coats you can control the build up quite well.

You have me wondering about a cloth, I wonder if something like a cheesecloth would be suitable?
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Old 31st January 2013, 02:09 PM   #30
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Quote:
Originally Posted by djk View Post
PVA is nice, it remains flexible when it sets up. By thinning it out and applying several coats you can control the build up quite well.

You have me wondering about a cloth, I wonder if something like a cheesecloth would be suitable?
i used this in combimation with glue
Click the image to open in full size.
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