Black Open Cell Foam for TL port Mouths?

[Rothchild]

The stuff in the back of my PMCs is way shot, and I've recently been tweaking with a pair of Castle Chesters, which have (had) the same stuff in the port mouth (which was also on it's way out), just starts crumbling to dust.

Black, open cell and prone to decomposition - and seemingly commonly used by TL speaker makers.

Does anyone one where to get fresh supplies?

[Audio Al]

https://www.google.co.uk/search?client=safari&rls=en&q=Black+Open+Cell+Foam&ie=UTF-8&oe=UTF-8&gfe_rd=cr&ei=MlpWWIfaHcLO8gfh-q-QDA

:)

[Rothchild]

Yeah,

https://www.google.co.uk/search?client=safari&rls=en&q=Black+Open+Cell+Foam&ie=UTF-8&oe=UTF-8&gfe_rd=cr&ei=MlpWWIfaHcLO8gfh-q-QDA#q=Black+Open+Cell+Foam+which+is+the+one+I%27m+ looking+for%3F

They're none the wiser either

[walpurgis]

Look on ebay for industrial filters.

You may need larger, but it's this sort of thing: http://www.ebay.co.uk/itm/2X-Carbon-Filters-for-AT493-SMOKE-ABSORBER-EXTRACTOR-FAN-SOLDERING-STATION-Iron/162248184040?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%2 6asc%3D38661%26meid%3D06f48cd5b6274074a0e8d3a346f5 9c42%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D2917 09689561

The stuff was called 'Declon' and was first popularised for speakers by JBL I believe, who made the front grilles for the L100 Century model from it around 1970.

[struth]

Stuff you want is Class '0' Acoustic Foam Studio Treatment 6mm. I got mine in a big roll

[walpurgis]

Just found these:

http://www.ebay.co.uk/itm/1x-SLB100-SLAB-Pro-Acoustic-Foam-Panel-Studio-Room-Treatment-1000x500x30mm-/301871195473?hash=item4648ece551:g:3UgAAOSwhOBXUJd O

http://www.ebay.co.uk/itm/RFX-Race-Open-Cell-Polyurethane-Sump-Foam-Prevents-mud-Build-Up-Ktm-Honda-Yamaha-/302063548869?hash=item465463f9c5:g:xB4AAOSwvzRXzqy C

http://www.ebay.co.uk/itm/ALLOY-FUEL-TANK-OPEN-CELL-FOAM-BAFFLE-400mm-x-300mm-x-50mm-16-x12-/112222202631?hash=item1a20f6eb07:g:LJYAAOSw4GVYF-vb

[Rothchild]

Thanks all,

The sump foam is the one that looks closest to the original (which is handy as it's cheaper than anything designated 'studio' or 'acoustic' ;-))

[danilo]

Given the erm.. biodegrable nature of the oem Airfilter foam material.
Possibly might consider an alternate material fitment?
http://www.homedepot.com/p/UltraTouch-16-in-x-48-in-Denim-Insulation-Multi-Purpose-Roll-6-Pack-60306-16482/202710055

[Rothchild]

Given the erm.. biodegrable nature of the oem Airfilter foam material.
Possibly might consider an alternate material fitment?
http://www.homedepot.com/p/UltraTouch-16-in-x-48-in-Denim-Insulation-Multi-Purpose-Roll-6-Pack-60306-16482/202710055

Thanks danilo, that's not the right stuff for this purpose, I probably would use it for pipe tuning / box stuffing but the stuff I'm after is really just there to stop children and animals having access to the pipe.

[Toppsy]

The actual foam material you need is called RETICULATED FOAM. It likely comes under several Trade Names.

[Rothchild]

The actual foam material you need is called RETICULATED FOAM. It likely comes under several Trade Names.

Thanks Toppsy, that's really handy - yup that's exactly the stuff.

This looks like a deal: https://www.amazon.com/Aquarium-Biochemical-Cotton-50x50x2-5cm-liannmarketing/dp/B00MNMFJFE/ref=sr_1_1?ie=UTF8&qid=1482237486&sr=8-1&keywords=Reticulated+Foam

Fish tank foam, whoda thunk it?!

[oceanobsession]

eBay item number:

252667271947

[oceanobsession]

http://www.ebay.co.uk/itm/ALLOY-FUEL-TANK-OPEN-CELL-FOAM-BAFFLE-400mm-x-300mm-x-50mm-16-x12-/112222202631?hash=item1a20f6eb07:g:LJYAAOSw4GVYF-vb

[Rothchild]

Thanks Phil, missed your post over xmas.

That looks just the ticket!