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doogie
PostPosted: Tue Apr 17, 2007 2:29 pm 
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Doing a bit of work on a mini & up under the front parcel tray someone has gone nuts with a can of expanding foam, i've been chipping away at it for ages, does anybody know of a solvent that will break in down or melt it? Is it acetone?

Doogie

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Wombat
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PostPosted: Tue Apr 17, 2007 2:36 pm 
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Acetone should - some foams are disolved by petrol and therefore are not allowed as floatation in boats so you try that as well

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Mick
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PostPosted: Tue Apr 17, 2007 2:42 pm 
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Location: Under the bonnet son!
Possibly turps as well, but acetone seems to destroy most things it touches.

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sports850
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PostPosted: Tue Apr 17, 2007 2:45 pm 
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Try a few things on the stuff you've chipped out , as wombat said petrol or acetone should work , thinners (just watch the paintwork)does on some as well . If they don't work it might be worth looking at some tins of the stuff in a hardware shop and see if they list a solvent .

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Harley
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PostPosted: Tue Apr 17, 2007 2:59 pm 
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Fire.
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lil-ute
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PostPosted: Tue Apr 17, 2007 3:21 pm 
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a bfh

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Joe
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PostPosted: Tue Apr 17, 2007 4:32 pm 
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doesn't mixing petrol and that crap make explosives? 'anarchists guide to mayhem' ot 'terrorists hand book' or something said something about that didn't it? I'd find out what its made of first, you don't want any bad chemical reactions...

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drmini in aust
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PostPosted: Tue Apr 17, 2007 4:36 pm 
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polystyrene + petrol = napalm or similar, if I remember correctly...
Ask Mike Byron... :wink:

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Maxi23
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PostPosted: Tue Apr 17, 2007 4:38 pm 
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Reading up on the net, that stuff seems pretty tough.

Acetone can be used against un-cured foam, but if it hard, starting chipping/scraping/grinding away.

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Joe
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PostPosted: Tue Apr 17, 2007 4:41 pm 
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how does a wire wheel go through it? or 3M Scotch Brite discs or something?

got a big cold chisel? (not the band!)

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drmini in aust
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PostPosted: Tue Apr 17, 2007 4:41 pm 
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Doogie, just wire wheel it- angle grinder + 4" dia x 5/8 bore twistknot wheel. Not the cone shaped one... :wink:
Rips it orf quick smart.

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Joe
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PostPosted: Tue Apr 17, 2007 4:47 pm 
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yeah, thats the type I was thinking of, unless you can find something harsher

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Harley
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PostPosted: Tue Apr 17, 2007 4:58 pm 
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But then you're just making dust that will work its way everywhere.
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Joe
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PostPosted: Tue Apr 17, 2007 5:01 pm 
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and any free dust particle you breathe can cause cancer

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drmini in aust
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PostPosted: Tue Apr 17, 2007 5:54 pm 
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At Rheem we remove foam from overfoamed water heater cylinders with a high pressure water jet.
It works fine but could make a mess in your Mini... :lol:

re the dust, just wear a particle mask. It ain't sharp fibres like fibreglass or asbestos we're talking of here, risks are minimal..

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