Thanks for all your replies!!
There's some good advice there.
@klasse/Vinya77/Rampage/Tech1210: Been a bit reluctant to use tools as I would end up spending more money on kit & feel caution regarding damage too but there's a fair few of you saying it's AOK tho..If I'm going to have to reautosol / resand again & again though then the purchase seems altogether more appealing
I will just make sure I go careful with something that isn't going to warm the ally up or bore holes through it
I reckon some 3m or Mirka Abralon foam backed pads wouldn't go amiss right now though for the welds, nooks & crannies.
@Irh: Cheers for the specific advice about my photo. I will go to a coarser grit to get rid.. I understand the point you make about just making the scratches stand out more if I go onto a coarser grit. I'm tuning me 'eye' in as to when I feel when the paper should change
@WD Pro: Nice lump of info there. I read a fair bit of that before I started the frame & realised what I was getting into regarding input/time needed. I think those ROOX barends are where it's at!!
@GT Steve: Keeping the paper wet?..Yes, I tend to let it run dry as it feels like it's doing more to the metal. It feels like it's just gliding over the metal when it's wet!..and I can see what's happening to the scratches I'm trying to rub out when its just dust- bad habit then
Bad idea having alu dust flying about as it's neurotoxic too. Re autosolling/resanding- didn't think that might happen- makes me reconsider a mechanical sand/polish. Can you recommend a good sealing wax??
@firedfromthecircus: re: 90deg rub: I've been trying that technique on the larger isolated scratches to get them out quicker and to prevent 'scalloping' of the metal -where you create a sunken area where you have rubbed too hard basically.
@ Klasse: I resorted to using steel wire wool to get powder coat off some Alu forks I did a while back, nothing else was tough enough, although I was using rubbish paintstripper to be fair. The powder coat was a total and utter B*****D to get off but then I went to W&D paper to lift the steel particles off from the Alu after I read about steel wool rusting in the alu if you dont get rid of it
I have taken photos of this frame "before / during and after" and all that. There'll be a thread about this bike.
Cheers for the feedback guys