How to treat a frame that's been standing for internal corrosion?

Am over the moon with the new (to me) Gazelle frame I've just picked up (thanks again M if you read this board). It needs a good wash and brush up as it's been standing in a garage for the last 10 years or so. I'm going to get it powder coated but wondered if there was anything I should or could do for the frame as no doubt it's picked up some internal corrosion just from condensation and so on over the last decade? Any thoughts? Cheers.

=D

GT85 in the pipes.
If it has been inside and out of the rain for 10 years it should be all right, unless you have seen something that gives you cause for concern of course.

Not really no, just general grime inside the BB and chainstays leading off but probably more dust, grease, and crud than anything. Just occurred to me that any frame might need a bit of tlc after standing for a while. I'll give the GT85 a whirl though, cheers.

I suppose a bit of corrosion is probably normal but nothing to worry about, after all it is a steel frame?

get some emery cloth and wrap it around a stick, give the seat and head tubes a wipe to remove any surface rust, then spray in the GT85

I would do as Chris advises but a good tip is to gaffer tape a 'Scotchbrite' pad to a piece of dowell or cane, soak it with WD40 or GT85 and run it up and down the seat tube. Use a small (brass) wire brush to clean out the BB area running it 'round' the threads. RInse everything very well with more solvent. I always clean out the top of seat tubes especially like this and finish off with 180 then 600 grade or so wet and dry to get rid of any burrs (that would knacker a nice Campag post...)

If you want to preserve a frame you need to use Waxoyl or similar but thinned 30% or more with white spirit, heat it in a bucket of boiling water and pour into a warm frame (with all but the seat tube taped up) - twirl it round every which way and let the excess drain.

One very well preserved frame.

oh yeah DO NOT use frame saver. its shit

What's wrong with frame saver? Other than it is shit, why is it shit?

I had a frame repaired at Chaz Roberts and coughed up a score for a tin. Bit like buying polish with your new Clark's Commando's. Anyways up haven't used it yet, live in a flat on the 13th & not a field. Christ I'm rambling.¬

its more expensive, and less preservative then GT85 or the like. it will also kill your paint job, if you splash any of it on there.

Max ... gaffer tape a 'Scotchbrite' pad to a piece of dowell or cane, soak it with WD40 or GT85 and run it up and down the seat tube.

Max, that is such a good tip. Should go down in the lfgss hall of fame for top tips!

Thanks for the tips gents. I ended up getting some dowel, WD40, some gaffa tape and some sponge pads and some of those stainless steel saucepan scourers. I made a sort of giant cotton bud with sponge at one end and scourer at the other. Lots of WD40 and some scrubbling later I now have a very clean seat tube. Also cleaned the BB with a small brass spark plug brush. Am considering taping the BB up and filling the frame with Kurust just to be double sure.

OCD, moi?

Great stuff. Don't try and make a frame watertight - you can never keep all the moisture out. Far better to have drain hole so it can 'air' and water can get out - I usually drill a small (4mm or so) drain hole at the lowest point of the BB shell.

Every now and again give a squirt of GT85 in there and in to the other vent holes you will find in the frame tubes.