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Removing underseal
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Nick57



Joined: 09 Dec 2013
Posts: 35
Location: Leicestershire

PostPosted: Wed May 28, 2014 2:10 pm    Post subject: Removing underseal Reply with quote

I have to get some welding done shortly on the floor/chassis of my Renault 4

The person who did the job before did a bodge job and then covered it with underseal of some sort. The welds are splitting so i need to clean off the areas to be repaired

I think the underseal is 2/3 years old

Does anybody use something to soften underseal so that it can be wiped off or recommend another method Question

Nick
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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK

PostPosted: Wed May 28, 2014 2:33 pm    Post subject: Reply with quote

Cellulose thinners and lots of rag, but wear gloves / goggles, very messy
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Phil - Nottingham



Joined: 01 Jan 2008
Posts: 1252
Location: Nottingham

PostPosted: Wed May 28, 2014 6:36 pm    Post subject: Reply with quote

Better and safer to person to use a heat gun to soften it and scrape it off and then use thinners/white spirit/paraffin to clean it up
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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK

PostPosted: Wed May 28, 2014 7:08 pm    Post subject: Reply with quote

Phil - Nottingham wrote:
Better and safer to person to use a heat gun to soften it and scrape it off and then use thinners/white spirit/paraffin to clean it up


Actually you're right Phil, and this was exactly how I did mine.....
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Nick57



Joined: 09 Dec 2013
Posts: 35
Location: Leicestershire

PostPosted: Thu May 29, 2014 6:34 am    Post subject: Reply with quote

Thanks for the replies.

I had not thought of the heat gun and will use that to start with and see where it leads me.

nick
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Current Riley 9 Peugeot 505 Moto Morini 350

Have owned Aston Martin Inter Rudge Ulster Renault 4 Rover 100 Austin 7 Aston Martin Le mans
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colwyn500



Joined: 21 Oct 2012
Posts: 1745
Location: Nairn, Scotland

PostPosted: Thu May 29, 2014 8:17 am    Post subject: Reply with quote

You're going to need bare metal for the welding so if you have some paint stripper that would work wonders.
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MikeEdwards



Joined: 25 May 2011
Posts: 2711
Location: South Cheshire

PostPosted: Thu May 29, 2014 10:48 am    Post subject: Reply with quote

Yes, heat gun and scraper is the way, though if it's been worked into bad welds that haven't been planished or tidied up, you'll have to get the wire brush on it. Don't heat it too much, just so it gets soft enough to scrape off - if it starts bubbling, back off a bit.
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Nick57



Joined: 09 Dec 2013
Posts: 35
Location: Leicestershire

PostPosted: Thu May 29, 2014 4:51 pm    Post subject: Reply with quote

Thanks for the tips guys, just got to wait for it to stop raining !

Nick
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Have owned Aston Martin Inter Rudge Ulster Renault 4 Rover 100 Austin 7 Aston Martin Le mans
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