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6step guide to making your rvk silent


Guest leepy

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Cheers Leepy mate. Just done my 6 inch RUCK.

Be warned though - Pollycell Pollyfilla expanding foam is crap! Just used a 825ml can to fill half the box lol

:wink:

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Cheers Leepy mate. Just done my 6 inch RUCK.

Be warned though - Pollycell Pollyfilla expanding foam is crap! Just used a 825ml can to fill half the box :doh:

:)

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lol :wink: Mate you want to hope an pray its crap cos if that starts expanding like it should ur right up shit creek fella :doh:lol A full can should about fill 2baths fuck your gunna be cleaning for a month :rofl:

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Nice one Leepy

I have just leepyfied my 150 l1 fan, Quality !!

I now have cf >ducting >leepyfied fan> wac1 controller>silencer.

I am doing a test run this evenning to see if the nieghbours can hear it, if not all good, all systems are go for another grow .

:wink:

Fecking foam gets everywhere :ninja:

SS

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:rofl: :rofl:

Thank fuck I was right mate - You shit me right up then lol . Had to go check it.

It has filled the box now - slightly bulging. Turned it on and :rofl: can't hear a thing :yep: and works perfect!

I'll get it installed in a week or so. Gotta do some 'ceiling modifications' first :ninja:

But yeah - looks like the polycell stuff sucks. Get something else :v:

:wink:

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Bro im glad you were right buddy cos that would of took some right cleaning up mucka :D and im glad your happy with your new fan :wink:

StonedSkunk i think i like that <leepyfied>fan :D glad it worked for you m8 take care mucka :)

Ps the foam is shite init cant use the fucking stuff without getting it every were lol lol

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:v::smug::fear::yep: Stick that in ya fucking pipe an smoke it Edin bud

Cheers chaps its nice to know that something iv posted has helpped someone out :wink:

ya big fanny :stoned:

you just couldn't resist yerself, could you :D

here, go N twat him with this

post-36349-1257017924_thumb.jpg

:wink: JH

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Its my turn today!

I am not looking forward to this at all, I am messy at the best of times ;)

Thanks for the instructions Leepy, hopefully I wont overfill my box and get the foam everywhere! Mind you, not much chance of that by subwoofers post! I have bought the Polycell Polyfilla but only the 500ml can. I guess I wont need to rush to seal the box up if it is slow to expand? (Please please say its true ;))

Well, I will let you know how I get on because trust me if I can do this then anyone can :taz:

Edited by namaste666
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Am going to be attempting this in the next few weeks, as I'm gonna be starting a grow that I hope will be completely stealthy.

I was looking online for the foam that'd you used, and had it in my head that it was special acoustic stuff, so I had a hard time finding any. After coming back here I see it was the normal foam you used, so I was just wasting my time looking for anything else, but I did come across something called flexi-foam and wondered if anyone had come across it/knew if it was any good. It's meant to be more flexible - so maybe it would dampen vibrations better?

post-49580-1257514446_thumb.jpg

Flexifoam is much more elastic than standard PU-foam:

o Elastic Recovery ( ISO 1856) is up to 90% if the foam is compressed by 75%.

Traditional PU-foam does not have any recovery if the compression is higher than 10%.

o Elongation at break is three times that of traditional foam. The maximum elongation before breaking (DIN 18540) is about 45% compared to 15% for traditional PU-foam.

Thanks to these flexibility properties, the foam will maintain its general characteristics much better. Joint movements through the years will cause a traditional PU-foam to break and lose some of the following properties:

o Thermal insulation

o Acoustic insulation

o Air and vapour block

Flexifoam follows the movements of the joint and will keep its insulating properties over the years. This is certainly a necessity for larger windows in PVC or aluminium, especially in smaller joints (e.g. 2 to 3 cm width). The maximum movement allowed for traditional foam before breaking is only 2mm compression or 3mm elongation. Moreover, after several years the maximum elongation and compression will reduce to possibly 50%. That’s why Soudal created Flexifoam which has high movement capability as well as stress resistance in time.

Application areas:

o Expanding joints.

o Vibrating constructions

o Use as fixing foam while minimizing noise transmission

o Impact and shock damping

o Sealing of window- and doorframes

o Filling of cavities

o Sealing of all openings in roof constructions

o Construction of baffle plate; soundproofing

o Connecting insulation materials to roof constructions

o Application of a soundproofing layer on motors

o Improving thermal insulation in cooling/heating systems

Characteristics:

o Very high elastic recovery

o Copes with extreme mechanical movement without cracking

o Excellent adhesion on most substrates (except Teflon, PE and PP)

o High thermal and acoustic insulation

o Very good filling capacities

o Excellent stability (no shrink or post-expansion)

o Very precise application due to the foam gun system

o Low expansion

o Good compressibility

Properties

1)Gun Grade

What you see is what you get: Low expansion

Easy to use: gun application

Economical: less waste

2)Insulation Properties

a)Insulation

Tested by MPA Bau Hannover according to DIN 52612-1  = 0.0345 W/(m.K)

b)Acoustic Rate

Tested by IFT Rosenheim according to EN ISO 717-1 RST,w= 60 ( -1;-4) dB

c)Air penetration

Tested by IFT Rosenheim according to DIN 18542, Part 7.2

A < 0,1 m

Thing is you need a special gun to use it with, which makes it expensive, so I may just go with the normal kind for the moment (unless anyone has a source for a handheld spray of this?)

Also found the 2 part one that you have to mix yourself, would this be better, or just more faffing about?

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Yeah bro that sounds bang on mucka except its not expanding so you'll need a few cans to fill a box mucka and for get that costly gun ya need to use it .use the( leepyfied gun )an that is a nail though a board take can twat nail into base of can aim foam into box :g:

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Yeah bro that sounds bang on mucka except its not expanding so you'll need a few cans to fill a box mucka and for get that costly gun ya need to use it .use the( leepyfied gun )an that is a nail though a board take can twat nail into base of can aim foam into box :unsure:
Flexifoam gun is a one-component, self-expanding, ready to use polyurethane foam.

Think I'll go with this and the leepygun then, I need any extra stealth but not at the cost of a £40 gun. Just wondering how much foam should I expect to get outta 1 can - I'll have to do this indoors so I'm thinking I should have a spare box for the extra foam, or can you stop it when you need to?

Edited by RilverSizlas
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Hey look, that picture has a nozzle included unlike my foam :yes:

I built my box, put the fan in, taped it all up and was ready to add the foam when I read the back of the can. Attach the nozzle provided! Bugger, no nozzle. I looked in the places it might have been but no luck.

Ah well, we live and learn. I really thought it came with the nozzle so it must have fallen off somewhere in the house. I bet I find it tonight after taking it all apart again to get my fan back up and running :yep:

Remember folks, check your foam works before you start! This could have saved me a couple of hours today! :unsure:

Thanks again for the instructions Leepy, I will start again next week with a nozzle. :B):

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  • 3 weeks later...
Hey look, that picture has a nozzle included unlike my foam :clapping:

I built my box, put the fan in, taped it all up and was ready to add the foam when I read the back of the can. Attach the nozzle provided! Bugger, no nozzle. I looked in the places it might have been but no luck.

Ah well, we live and learn. I really thought it came with the nozzle so it must have fallen off somewhere in the house. I bet I find it tonight after taking it all apart again to get my fan back up and running :clapping:

Remember folks, check your foam works before you start! This could have saved me a couple of hours today! :clapping:

Thanks again for the instructions Leepy, I will start again next week with a nozzle. :B):

:clapping::clapping::toot: Thats how i came up with the leepyfied gun lol got half of box of foam from work an not 1fecking nozzle in the bastard box :doh: anyway bro i hope its worked for you pal

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Also try not to cut through a can with a jigsaw !!!!!

As i did when using a box full of foam cans (from mate) as a workbench, not good, like a bomb going off, had to throw it grenade style out the window onto my lawn....:yep:

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