The secret is the silicone carbide abrasive. It cuts mill scale where aluminum oxide smears it around. Princess Auto/Harbour Freight offer a really cheap one in 5 packs that go on sale every now and then. Can’t beat the price and they seem to do pretty good,even when compared to the expensive 3m discs.
Yes! My material has some medium rust...it just glares over and has the really dark color. I have to really push hard to get it to shiny. Same with mill scale. I ordered some blue disks. Will.see how they work.
For your smaller parts, you can drop them into a bucket of vinegar for a few days and then just wipe the junk right off. It helps if you move it around and brush the thick rust or mill scale a bit every day.
The first five minutes and fifty sec is unhelpful and repetitive time wasting waffle. Then he gets the flap disc going and starts to do something. Edit: The millscale grinding demo is good, but it is only about 2 minutes long. A script or at least paced bullet points would greatly improve watchability. Ooooh… 11:58 “Aluminium!” Nice to hear.
I have some old flapper wheels to clean the inside. If you have the room to soak it in disabled white vinegar or muriatic acid works also, just becareful!!!
@@ACDesignsGarage if you soak the inside with some sort of acid, how do you neutralize and dry that inside area to avoid flash rust? Cheers and thank you for the reply!
I've used the strip discs as well, primarily on aluminum; much better than a flap disc for blending/smoothing. Greg (@makingmistakeswithgreg) also did a comparison of different grinding discs for removing mill scale.....but unfortunately don't think he included the strip discs- There are purpose built discs that I would also like to try.
Acetone or lacquer thinner works well, or anything that evaporates fast. Brake clean works also just make sure its non chlorinated and make sure it totally evaporated before you strike an arc lol. Or BOOM
Very nice but feel you should have mentioned to newbie grinders an welders that if you use any method on aluminum you should keep that disc dedicated dedicated to only alum.otherwise you introduce contaminates into ur weld piece and could be difficult to weld properly.snooky pa.😊😊
Holy crap! I'm doing something seriously wrong! Would take me 2 minutes to clean that much with flapper! A new dewalt one 40 grit! Maybe my grinder is slow or something. How many RPMs is yours? I'm gonna try the purple disks. You clean way faster than I am.
Ill have to check, not sure why but those purple disc cut great and doesn't remove much material. I tried the flapper wheels and they'll just take the soft stuff off.
The secret is the silicone carbide abrasive. It cuts mill scale where aluminum oxide smears it around.
Princess Auto/Harbour Freight offer a really cheap one in 5 packs that go on sale every now and then. Can’t beat the price and they seem to do pretty good,even when compared to the expensive 3m discs.
Awesome thanks for the tips!!!!
Yes! My material has some medium rust...it just glares over and has the really dark color. I have to really push hard to get it to shiny. Same with mill scale. I ordered some blue disks. Will.see how they work.
For your smaller parts, you can drop them into a bucket of vinegar for a few days and then just wipe the junk right off. It helps if you move it around and brush the thick rust or mill scale a bit every day.
Awesome thanks for the tips!!!!
Thank you for your videos
👍👍
Thank you for watching!!!!!
The first five minutes and fifty sec is unhelpful and repetitive time wasting waffle. Then he gets the flap disc going and starts to do something. Edit: The millscale grinding demo is good, but it is only about 2 minutes long. A script or at least paced bullet points would greatly improve watchability. Ooooh… 11:58 “Aluminium!” Nice to hear.
how do you handle internal scale on tubes and such? Thank you for the video
I have some old flapper wheels to clean the inside. If you have the room to soak it in disabled white vinegar or muriatic acid works also, just becareful!!!
@@ACDesignsGarage if you soak the inside with some sort of acid, how do you neutralize and dry that inside area to avoid flash rust? Cheers and thank you for the reply!
I've used the strip discs as well, primarily on aluminum; much better than a flap disc for blending/smoothing.
Greg (@makingmistakeswithgreg) also did a comparison of different grinding discs for removing mill scale.....but unfortunately don't think he included the strip discs-
There are purpose built discs that I would also like to try.
Thank you, ill have to check out his video!!!!
Do you wipe the metal down with anything after you clean the mill scale off. Before you weld?
Acetone or lacquer thinner works well, or anything that evaporates fast. Brake clean works also just make sure its non chlorinated and make sure it totally evaporated before you strike an arc lol. Or BOOM
Very nice but feel you should have mentioned to newbie grinders an welders that if you use any method on aluminum you should keep that disc dedicated dedicated to only alum.otherwise you introduce contaminates into ur weld piece and could be difficult to weld properly.snooky pa.😊😊
Hahaha thank you, I was thinking about that after I up loaded it hahahaha. Thanks for posting it in the comments
On them stripper disc might try a bar of soap on them to help clean them
Great idea!!!!!
I"m gonna use these strippin disks to clean up my pizza baking steel I'm making
They work great!!!
Holy crap! I'm doing something seriously wrong!
Would take me 2 minutes to clean that much with flapper! A new dewalt one 40 grit!
Maybe my grinder is slow or something.
How many RPMs is yours?
I'm gonna try the purple disks. You clean way faster than I am.
Ill have to check, not sure why but those purple disc cut great and doesn't remove much material. I tried the flapper wheels and they'll just take the soft stuff off.
🎉🎉
Thank you!!!!!
Belt sander
As a welder i can not take time to clean clean steel it would take to much time and slow down productivity
I can see that in a production environment!!!
This accent is really difficult to listen to.. Can't take anything you say seriously..