Scotch brite finishes

K

kbright

Joined
Jun 27, 2004
Messages
83
Which scotchbrite belts do you like? Medium, Very Fine, Super fine?
Aluminum oxide or SC?
 
Medium is super agressive from what I Have seen.
Shoot for fine or very fine. But this depends on the finish you want.
Silicon carbide works best for steel.
 
Just picked up maroon, blue and grey. Haven't tried maroon yet but blue is plenty to blend 220 grit nicely. Just did a chef that I finished to 400 grit then worked over with blue and grey Scotchbrite. Nice working finish.
 
Allthough I maybe don't see myself using the maroon for end finishing, I think it may have a place for removing/blending lower grit scratches here and there.
Also just got cork belts in 400 and 600 grit. I am a dedicated non-hand-sander, so excited to try these too.
 
i think the blue belt leaves a nice finish. i dont think they come on ao or sc though.
 
This thread is kind of interesting to me, as last summer a similar thread had many people saying they stopped with the maroon, and that finer was “too fine”. So, when I stopped by Pops I only picked up the maroon. Is someone here able to post photos showing the difference in finish between the maroon and one of the other belts?
 
I was given a tip from Pops on these belts.
Grind to a 220 finish, then use the maroon with wd40 then finish with dry blue. I have not tried it yet.
 
In my experience the medium maroon scratches look deeper and seem spread out more. And The fine blue looks perfect with the right prep, like shiny brushed steel. The ultra fine hasn't seen much use yet. Im usually happy with the fine belt.
 
Bob Duguay said:
I was given a tip from Pops on these belts.
Grind to a 220 finish, then use the maroon with wd40 then finish with dry blue. I have not tried it yet.
Click to expand...
They gave me the same advise. So far I have only used the maroon dry (as once done with wd40 you can’t go back). I’m reasonably satisfied with the look ... but then again, as I pretty much only make kitchen knives, I am actually concerned about not having *too smooth* a finish (to reduce cut food sticking to the surface...)
 
Scaniaman said:
Allthough I maybe don't see myself using the maroon for end finishing, I think it may have a place for removing/blending lower grit scratches here and there.
Also just got cork belts in 400 and 600 grit. I am a dedicated non-hand-sander, so excited to try these too.
Click to expand...
I just bought the brown course and a extra course from tru grit. The extra course is fantastic for removing deep ceramic belt scratches. You can then go to a 220 and follow it up with something finer. It's worth a try.
 
john april said:
i think the blue belt leaves a nice finish. i dont think they come on ao or sc though.
Click to expand...

The "S VFN" (silicon carbide very fine) grade is available in "Scotch-Brite™ Clean and Finish Rolls" UPC 048011-00270-5, in case that is any use to you.
 
If you go from 220 to maroon scotch Brite to blue to grey (ultra fine) it makes a very nice satin finish. Shiny but nowhere near 'too shiny'.

I'd equate it to a fairly clean ~600 grit look. Shiny, yes, but brushed looking and nowhere near polished.
 
I have the maroon and don't like it, I bought it by mistake. I was ordering online instead of calling like I normally do. I did one batch and found it a little too coarse for me. So called em up and ordered "a blue one" like I normally do. I have one time since used it to blend something and then followed with the blue. Don't even remember what it was. Anyhoo my normal usage is 220 grit and then hit with the blue Scothbrite. I'll hit em twice. Once when finishing the blade and once again very briefly once the handle is finished and buffed.

220 grit followed by blue:

46GAWa4.jpg


ZSvZvc8.jpg


This is how I finish all stainless and A2 knives.
 
I use the maroon and fine depending...
This is z wear with 60 micron lengthwise scratches and then the blue fine belt on my 4x36

I put a leather pad on the platen underneath... not sure that it does anything

9KlJeZT.jpg
 
HSC /// said:
I use the maroon and fine depending...
This is z wear with 60 micron lengthwise scratches and then the blue fine belt on my 4x36

I put a leather pad on the platen underneath... not sure that it does anything

9KlJeZT.jpg
Click to expand...

z-wear is the worst for getting a clean finish on. Other high alloy steels finish better. Frustrating. Your finish is as good as it gets.
 
Willie71 said:
z-wear is the worst for getting a clean finish on. Other high alloy steels finish better. Frustrating. Your finish is as good as it gets.
Click to expand...
It is without a few more hours...
I set the expectations up front with my customers and they understand it’s a performance knife and I’ve haven’t had any problem selling them at the price I want

Tim Wright is the only one that I know of that hand rubs out wear resistance steels like PD-1 to a high grade polished finish scratch free.
 
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