Best way to repair rubber surrounds

[axel340band]

Hi,
I recently picked up a pair of Dynaudio BM6A powered monitors on the super cheap, and they work perfectly. However, there is about a 3/8" squarish hole in the woofer surroud. I have not been able to find an exact replacement for the surround, so I am looking to patch the hole from behind. If anyone has any suggestions on a proper material to use, I'm all ears, and would be extremely grateful. These things sound awesome for what they are, and I want to be able to use them without worrying about blowing out the surround.

Thanks!

Alex

 

[axel340band]

 

[nfafan]

Try an appropriately sized slice of rubber from a pair of the thin "surgical" rubber gloves.

Maybe use "inner tube rubber patching" cement or plain rubber cement to hold it in place and allow to set.

Be sure to 1st look for a sacrificial edge of the surrounds where you could safely take a tiny toothpick dab of the chosen cement and put it on the edge of the rubber to verify that it doesn't drastically damage it - because many "glues" work by melting/welding 2 surfaces together, and you would hate to make the hole a jagged mess.

 

[bimasta]

f you can get to the hole from the back, use a piece of tape as a back stop then just fill it in with some sillycone... leave the tape in place.

A good suggestion. I'll be doing it on a surround with similar damage. Use the thinnest tape you can find (eg packing tape) so you don't add too much mass. The black silicone sealant completes the job, and you can 'sculpt' it before it sets to match the curves of the surround.

In your photo, there's a black 'stripe' of some kind below the hole, — do you know what it is? Looks like it might be a previous silicone patch-job...

 

[jcamero]

Or, just re-rubber them. Rubber surrounds are out there.

 

[nerdorama]

I've seen recommendation in the past for cold vulcanizing glue. Supposedly will vulcanize the rubber patch into the surround and result in an almost melted in patch.
https://www.amazon.com/Rema-8oz-Pat...sr=1-2-catcorr&keywords=rema+cold+vulcanizing

I haven't tried it, so no experience.

 

[faber12]

I tried the inner tube patch glue, it worked well. The rubber that comes in the patch kit may even work as a filler.

 

[goanlisten]

Bicycle tube vulcanizing kit from most sports stores has worked for me - be extra careful not to overdo it. Important: sufficient curing time is essential.

 

[axel340band]

I ordered the cold vulcanizing glue from Amazon. I'm doing the repair tonight I'll update with pics and results once it's done. Thanks for the suggestions!

 

[JimPA]

The way that surround looks it appears that more holes will occur.