Author Topic: Foam Surround Punctured (Read 10376 times)

mykel18 · « **on:** Oct 23, 2014 at 11:37 AM »

Helping a friend to source opinions on how to easily fix his damaged foam surround. Natusok ng screwdriver while attaching the driver to the enclosure. Item just arrived and was shipped from US pa. Ano pinakamadaling way to fix this? Pwede ba idikit na lang? If for replacement, kelangan same na same ba because it might affect SQ? Thanks sa mga sasagot.

Gino · « **Reply #1 on:** Oct 23, 2014 at 11:43 AM »

Sound check mo if there is audible mechanical sounds. Also observe over time if the tear grows. If sq is ok and tear remains the same then I suggest that you leave it alone. I don't think that will be much of an issue.

mykel18 · « **Reply #2 on:** Oct 23, 2014 at 11:56 AM »

Quote from: Gino on Oct 23, 2014 at 11:43 AM

Sound check mo if there is audible mechanical sounds. Also observe over time if the tear grows. If sq is ok and tear remains the same then I suggest that you leave it alone. I don't think that will be much of an issue.

Thanks! We did check the sound last night and so far wala naman kami narinig na difference. We'll be observing the sound again soon.

Gino · « **Reply #3 on:** Oct 23, 2014 at 12:11 PM »

I suggest that you forget about it. If something comes up later then pa bago mong surround. I personally kasi like it a lil damaged like that but has original surround and glue than a fixed one with questionalble quality and durability. These closed cell foam naman have rip stopping characteristics.

mykel18 · « **Reply #4 on:** Oct 23, 2014 at 12:20 PM »

Quote from: Gino on Oct 23, 2014 at 12:11 PM

I suggest that you forget about it. If something comes up later then pa bago mong surround. I personally kasi like it a lil damaged like that but has original surround and glue than a fixed one with questionalble quality and durability. These closed cell foam naman have rip stopping characteristics.

So would you suggest to glue it? What glue should he use? The owner wants it fixed talaga but the shipping cost worries him. If he will be convinced na walang SQ difference then he might leave it like that.

raider125jeigh · « **Reply #5 on:** Oct 23, 2014 at 12:24 PM »

Myke SI Norman magaling dyan hehehe

RXV · « **Reply #6 on:** Oct 23, 2014 at 12:24 PM »

Try putting tape (not sure what kind para tumagal ang kapit) over the tear to prevent further ripping of the foam.

Kung lumaki na talaga ang rip (over time), have the foam surround changed by the Speaker Doctor.

Of course iba pa rin kapag original foam.

mykel18 · « **Reply #7 on:** Oct 23, 2014 at 12:37 PM »

Quote from: raider125jeigh on Oct 23, 2014 at 12:24 PM

Myke SI Norman magaling dyan hehehe

Haha. Actually kinausap ko na sya kung pwede nya tignan.

mykel18 · « **Reply #8 on:** Oct 23, 2014 at 12:40 PM »

Quote from: RXV on Oct 23, 2014 at 12:24 PM

Try putting tape (not sure what kind para tumagal ang kapit) over the tear to prevent further ripping of the foam.

Kung lumaki na talaga ang rip (over time), have the foam surround changed by the Speaker Doctor.

Of course iba pa rin kapag original foam.

I suggested to have it replaced with the same and original foam surround. Told him to contact the manufacturer and buy the surround as it will be cheaper that way than sending the driver back to them.

ndotcom · « **Reply #9 on:** Oct 26, 2014 at 06:32 PM »

Quote from: mykel18 on Oct 23, 2014 at 12:37 PM

Haha. Actually kinausap ko na sya kung pwede nya tignan.

Nakita ko na, ganda ng drivers at ok pa naman tunog niya sa current/break in box nya kasi malayo pa sa back panel ng box. Pero doubt ko pag nasa intended box na malapit sa back panel yung driver, dun malamang may effect kasi may singaw ang driver, anyway mo tignan di talaga maganda ang may butas na driver.

Ok na din muna yung pandikit repair na plan ng may-ari basta applied to the minimum at thinly lang sa backside ng surround at wag na sa harap. Sana lagyan din ng manipis na onion skin like paper yung likod ng adhesive na ilalagay para di maging dust collector.

tony · « **Reply #10 on:** Oct 26, 2014 at 06:35 PM »

pwede ang rugby cement dyan...

JojoD818 · « **Reply #11 on:** Oct 26, 2014 at 07:56 PM »

lagyan mo ng glue sir... yun Elmers ang brand. kung kaya sa loob manggaling mas maganda.

bili ka ng maliit na syringe sa Mercury Drug (wag sa hardware store

) tapos yun gamitin pang apply para malinis.

Nelson de Leon · « **Reply #12 on:** Oct 26, 2014 at 09:00 PM »

Quote from: JojoD818 on Oct 26, 2014 at 07:56 PM

lagyan mo ng glue sir... yun Elmers ang brand. kung kaya sa loob manggaling mas maganda.

bili ka ng maliit na syringe sa Mercury Drug (wag sa hardware store ) tapos yun gamitin pang apply para malinis.

Naiisip ko din ito tukayo. Hindi ba siya matigas kapag nag-dry? What if rugby para may flexibility pa din?

CMac · « **Reply #13 on:** Oct 26, 2014 at 09:26 PM »

rugby might eat up the surround material.
i'd go with the elmer's glue suggestion by jo.

joesat · « **Reply #14 on:** Oct 26, 2014 at 09:33 PM »

if rugby is too strong, you might consider rubber chack..ito ung ginagamit namin pandikit ng table tennis rubber sa kanyang handle..less viscous pa siya.

JojoD818 · « **Reply #15 on:** Oct 26, 2014 at 09:40 PM »

Quote from: Nelson de Leon on Oct 26, 2014 at 09:00 PM

Naiisip ko din ito tukayo. Hindi ba siya matigas kapag nag-dry? What if rugby para may flexibility pa din?

Patch up work lang naman, as in surgical repair lang. You can use rugby contact cement pero matigas din yun.

If you're concerned with flexibility then use silicone sealant, usually available ito sa mga hardware, hindi na kailangan ng syringe na nabibili naman sa botika.

Nelson de Leon · « **Reply #16 on:** Oct 27, 2014 at 12:00 AM »

Quote from: Dan 'Boss' Green on Oct 26, 2014 at 09:26 PM

rugby might eat up the surround material.
i'd go with the elmer's glue suggestion by jo.

I tthink it would not if the surrounds are made of expanded polyethylene foam. But just to be sure, you can test with a tiny drop sa teared surrounds.

tony · « **Reply #17 on:** Oct 27, 2014 at 07:24 AM »

me nagpagawa sa akin ng Technics 3 way speakers in the 90's, pinalitan ko ng foam surrounds yung woofer, standard naman ang size nya, 15 inches...binayaran ako ng pioneer open reel tape deck, non working nga lang, pero naibenta ko pa rin ng mataas ang price....

mykel18 · « **Reply #18 on:** Oct 27, 2014 at 09:32 AM »

Thanks sa mga sumagot. Will relay everything to the owner. Norman next time ulet.

tony · « **Reply #19 on:** Oct 27, 2014 at 09:36 AM »

foam surrounds should not be a big deal, its "reason for being" is to support the diaphragm in tandem with the spiders........

Tsnad · « **Reply #20 on:** Oct 27, 2014 at 09:42 AM »

Sir, elmer's glue ito rin yung gamin ko pag repair ng foam, then used a small artist brush kung kaya sa loob mas ok....

or nail polish color black sa loob din kung kaya...

the nail polish become rubberize pag tuyo...

qguy · « **Reply #21 on:** Oct 28, 2014 at 09:16 AM »

Kailangan flexible glue, Elmers is hard when it dries. Thin layer of silicone should work. Contact cement should work but it would be risky as if you make a mistake when your joining the two pieces, wala ng tangalan.

tony · « **Reply #22 on:** Oct 28, 2014 at 10:14 AM »

one thing about foam surrounds, napupulbus yan over time, it is just a matter of when it is going to happen...

jjlovemusic · « **Reply #23 on:** Oct 28, 2014 at 10:27 AM »

Sis, try mo kay Mang Paul
Taga Sta. Ana, Mnla. Veteran na sa gera yan este driver repairs

Landline: 382-9845

Nelson de Leon · « **Reply #24 on:** Oct 28, 2014 at 10:32 AM »

Quote from: tony on Oct 28, 2014 at 10:14 AM

one thing about foam surrounds, napupulbus yan over time, it is just a matter of when it is going to happen...

Question master Tony. What if the original foam surrounds is replaced with rubber, ano ang magbabago sa kanya? Sensitivity etc?

tony · « **Reply #25 on:** Oct 28, 2014 at 10:55 AM »

Quote from: Nelson de Leon on Oct 28, 2014 at 10:32 AM

Question master Tony. What if the original foam surrounds is replaced with rubber, ano ang magbabago sa kanya? Sensitivity etc?

honest answer...i do not know....unless we can measure data before and after...
just a guess, i am not sure you can hear the difference if at all...

tony · « **Reply #26 on:** Oct 28, 2014 at 11:02 AM »

Quote from: JJLoveMusic on Oct 28, 2014 at 10:27 AM

Sis, try mo kay Mang Paul
Taga Sta. Ana, Mnla. Veteran na sa gera yan este driver repairs
Landline: 382-9845

meron ding taga antipolo.. si Nemesio Seritan, nasa facebook sya... https://www.facebook.com/nemesio.seriritan?fref=ts

Nelson de Leon · « **Reply #27 on:** Oct 28, 2014 at 11:19 AM »

Si Benedict aka speaker doctor mahusay. Highly recommended. Taga Paco Manila.

JojoD818 · « **Reply #28 on:** Oct 28, 2014 at 10:09 PM »

Quote from: qguy on Oct 28, 2014 at 09:16 AM

Kailangan flexible glue, Elmers is hard when it dries. Thin layer of silicone should work.

Anong brand at saan nakakabili niyan sinasabi mo flexible glue? Might come in handy even with fabrics.

Btw, have you tried using Elmer's glue? The all-purpose white glue really isn't that hard.

Quote

Contact cement should work but it would be risky as if you make a mistake when your joining the two pieces, wala ng tangalan.

Have you even seen the intended application?

Wala naman two pieces to join there eh, it's just a small rip in the surround that needs patching up.

praktikal · « **Reply #29 on:** Oct 28, 2014 at 10:55 PM »

aside from elmer's, you may try this: