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Expanding Foam in Scoop |
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MINTEVENTRESOURCES 
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Joined: 12 April 2017 Location: USA Status: Offline Points: 59 |
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 Topic: Expanding Foam in ScoopPosted: 15 November 2017 at 10:53pm |
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Has anyone tried expanding foam in the scoop section of a scoop? (Under side of the scoop of course) What are the results?
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valve head777
Old Croc 
Joined: 27 July 2012 Location: East Sussex Status: Offline Points: 1781 |
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Posted: 15 November 2017 at 10:56pm |
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YYeah, heard it was a good idea, stiffens the scoop and reduces any resonance in the void behind.....
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Freedom of choice, choice of freedom.
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Sypa
Young Croc 
Joined: 21 February 2013 Location: Croatia Status: Offline Points: 921 |
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Posted: 16 November 2017 at 9:35am |
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What if it breaks and starts flapping in there after some time
 . A possibility.... |
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cravings
Old Croc
Joined: 30 January 2007 Location: Ireland Status: Offline Points: 7441 |
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Posted: 16 November 2017 at 9:52am |
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if the void is filled with expanding foam, it won't break.. it'll dense.
i do'nt have any scoops but i've done this behind all horn sections i have. like in mt121s and stuff. it's a good thing to do. |
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odc04r
Old Croc
Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5483 |
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Posted: 16 November 2017 at 10:06am |
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Used it in punishers before. Would definitely use it again. I could see it damping out a fair bit of resonance, but is no substitute for a properly braced expansion.
Do spent £10 on a proper applicator gun to attach to a can, you'll thank yourself later. |
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UpComingSound
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Joined: 21 June 2006 Location: United States Status: Offline Points: 393 |
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Posted: 16 November 2017 at 1:08pm |
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drill little hole bottom of cabinet make sure you don't use to much would bus thru
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valve head777
Old Croc
Joined: 27 July 2012 Location: East Sussex Status: Offline Points: 1781 |
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Posted: 16 November 2017 at 2:46pm |
Let it come out, set and then cut the excess off. Used it in my old mid horns and improved the quality of sound. It won't break up if it's filled completely and adds nothing to the weight. |
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Freedom of choice, choice of freedom.
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Dub Specialist Sound
Old Croc
Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4873 |
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Posted: 16 November 2017 at 10:01pm |
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Was going to say , yu need it to fully expand in the void, and yes let it come out so you its all filled
let dry and go hard cut excess off , little filler sand , job a gud'un :-)
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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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nickyburnell
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Joined: 06 February 2005 Status: Offline Points: 4410 |
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Posted: 16 November 2017 at 10:30pm |
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Builder friend says it actually conducts sound and makes things worse when trying to stop noise.
Make of that what you will, I'm not sure |
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It's everything, not everythink!
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mini-mad
Old Croc
Joined: 13 July 2012 Location: london Status: Offline Points: 6903 |
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Posted: 16 November 2017 at 10:43pm |
...so why do they use it in house for heat AND sound insulation? I've seen people fill drywall with the stuff and it cuts down noise A LOT |
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If it sounds like a gorilla is trying to escape, turn it down.
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cravings
Old Croc
Joined: 30 January 2007 Location: Ireland Status: Offline Points: 7441 |
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Posted: 16 November 2017 at 11:06pm |
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in our case though we're not using it to stop noise as such.. but to ad density and reduce resonances.
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Tonskulus
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Joined: 15 September 2017 Location: Finland Status: Offline Points: 425 |
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Posted: 17 November 2017 at 6:04am |
So your friend thinks.. foam conducts sound better than pure air? :D |
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UpComingSound wrote: