Other Stuff > Tricks & Tips
polishing thread?
Johnny4428:
That’s a great picture of progress on that casing. That takes great perseverance. I have battled on that front during my restorations, but I think after looking at your great work I’m prepared to give it a better shot at finishing my casings in the future. I have even ended up with different coloured soap/compounds that I don’t even know which is the fine and which is the course grades anymore. Yes “could do better†which was a familiar statement on my school report card. 🤣🤣
Oddjob:
Phil, secret weapons refer to some new stuff I found recently, they are working out just fine but I didn't want to say what they are until I'd ran a full test and can confirm they are easy to use, give good results and are worth the extra outlay. At this point in time I'd say these are really great, they are leaving a much better surface to work on than the abrasive brushes, they aren't as versatile as the brushes and can't reach areas that the brushes can. They are also not intended to be used by a Dremel and require some work to adapt them to fit, once that's done there is no more work, all extra ones bought will fit fine.
I'll let you know once this case is finished and polished what they are, where to buy them, how to adapt them etc. Things like brake plates will be great with them, the flatter the part the better these are IMO. I need to see the polished article in my hand to say yes to them, hope that makes sense, as the sort of resident guru on this I'd feel bad saying buy these only for them to not work out and I've wasted your money.
Johnny, I think you may be starting to polish too soon, work more on the surface, that surface looks a little rough due to the camera but feel it by hand and it's like touching velvet. The buffing soap is good stuff but it's not magic, it will give you a false impression as to how good it is, it looks ok but it won't last as it's just like a coating and underneath is still the same old stuff and it soon comes back to the surface. It's like the difference between a satin finish and a mirror finish, both are polished but only one is really polished.
If you check out this site, it grades the soap on how abrasive they are. https://bolgers.co.uk/collections/buffing-polishing
Grey is the most, yellow/beige is the least IIRC, I use grey, then white as by that time the surface is like glass but does have swirls etc, after white I do the final polish with pink. It's also the choice of mop that's important, grey with a 8" felt, that combination will give you a shine very quickly, then white with a close stitched cotton mop then pink with a loose leaf cotton mop. So it goes, very hard, medium, soft. I'm going to experiment with using white with a felt mop and see if that improves the finish as I'm not totally happy with some of the marks still left. If using grey with felt don't press on too hard, it's so aggressive you can easily dig a trench.
Sesman:
Thanks Ken.👍
Oddjob:
Rotor case is almost fully flatted now. 99% of the pits have been removed. Only ones left are where the Honda cover would cover them anyway, I could have removed those but the metal isn't that thick there and I didn't want to ruin the case just as it was getting so close.
Final few sandings tomorrow and then maybe polish it. It's looking pretty good, lovely and flat.
Johnny4428:
Thanks Ken for info regarding mops and soap, completely agree with what you say about polishing too soon on Surface that’s not been prepared properly. On the 750 I decided to go for the satin Finnish rather than polished surface, much easier to achieve and quite pleased with the result. Smoothed the surface then buffed with green scotchbrite wheel.
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