Mr Whippy
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| posted on 6/12/16 at 12:42 PM |
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Polyurethane Mastic Remover
Hi,
Due to a leak I've had to pull off the awing trim from our caravan. A bit of a battle as most of it was still soft and I now have long aluminium
rails covered in the stuff. So far nothing is working to get this muck off the metal and it's kind of driving me nuts...
Tried - white sprit, paint stripper, paint remover, meths, blow torch!, chisel, screw drivers etc
After about 4 hours I have got about 1 ft slightly cleaner , only about 15ft to go!
Short of buying another rail (don't even want to know how much that would be) I'm a bit stuck and it's winter and no doubt going to
rain soon so I'd like it sorted and the ducktape of the van asap
Any idea's??????????????
Thanks
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cliftyhanger
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| posted on 6/12/16 at 12:58 PM |
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It is pretty resistant to most stuff.
Could try acetone, but suspect that may not work either.
Sharp blade (razor blades are good, or snap-blade knife) or wire brush in a grinder (that maybe a bit dangerous in this instance)
But if you get most off with a blade, just a fresh bead of PU and stick the rail back.
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bonzoronnie
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| posted on 6/12/16 at 01:16 PM |
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Once cured, I don't think Sikaflex adhesives have a solvent.
On my boats I use a very sharp blade to cut it off.
Stanley Fat Max blades are real sharp
Then remove the tiny traces with Acetone.
A linky for inspiration
http://www.pistonheads.com/gassing/topic.asp?t=1378065
[Edited on 6/12/16 by bonzoronnie]
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steve m
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| posted on 6/12/16 at 03:10 PM |
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I have used a rubber (eraser to our US citizens  ) to get mastic off, but it does need to be cut with a Stanley blade first, or it pulls the lot
off, in one messy lump
using a rubber is tedious though, and not sure if it would work on an awning rail
Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at
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luke2152
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| posted on 6/12/16 at 10:25 PM |
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Use the blow torch again and then brillo pads while its still melted. You will need lots of brillo pads
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