Making Finishing Touch to Putty Knife After Rust Removal

ugoleaf · Post by **ugoleaf** » Wed Nov 09, 2022 6:29 am

Removed slightly thick layer of rust from putty knife and want to polish as finishing touch. Which of the following will work?

- Baking soda with white vinegar paste and sandpaper
- WD-40 with sandpaper

Why though baking soda and white vinegar paste should be effective if former is supposed to neutralize the latter? Maybe I should just scrub with baking soda and sandpaper alone?

Someone-Else · Post by **Someone-Else** » Wed Nov 09, 2022 12:55 pm

Try both and see which works.

Grendel · Post by **Grendel** » Wed Nov 09, 2022 6:10 pm

Wet and dry paper lubricated with brasso can work well. Depends on how shiney you want it to be and what your plans for it are.

dewaltdisney · Post by **dewaltdisney** » Wed Nov 09, 2022 6:16 pm

Cover it in putty and let it harden, it will look like everybody elses then. I have not used a putty knife since 1979.

DWD

Grendel · Post by **Grendel** » Wed Nov 09, 2022 7:28 pm

And then chuck it in the box with the brace and bits and the plough plane...

dewaltdisney · Post by **dewaltdisney** » Wed Nov 09, 2022 8:15 pm

DWD

ugoleaf · Post by **ugoleaf** » Fri Nov 11, 2022 10:33 am

dewaltdisney wrote: ↑Wed Nov 09, 2022 6:16 pm Cover it in putty and let it harden, it will look like everybody elses then. I have not used a putty knife since 1979.

DWD

A shiny putty knife is a sign of professionalism. These day gotta stand out from the rest. I can't imagine a dentist with rusty tools.

ugoleaf · Post by **ugoleaf** » Fri Nov 11, 2022 10:41 am

Grendel wrote: ↑Wed Nov 09, 2022 7:28 pm Wet and dry paper lubricated with brasso can work well. Depends on how shiney you want it to be and what your plans for it are.

Used the paste I mentioned first, then sandpaper. Then used WD-40, then sandpaper. A lot better but has multiple pits that can't be processed. Maybe metal polish will fill them in but I don't have it. It's of average shininess. Not of professional to stand out but it should do to qualify me as home DIYer.

dewaltdisney · Post by **dewaltdisney** » Fri Nov 11, 2022 11:15 am

It was a joke

DWD

Grendel · Post by **Grendel** » Fri Nov 11, 2022 7:00 pm

To be honest I did use one a few weeks ago , small job replacing a broken pane. Granted I wasn't starting from a rusty start but I don't think I've ever gone to greater lengths than cleaning with a bit of worn out sand paper or wire wool.

Grendel · Post by **Grendel** » Sat Nov 12, 2022 9:56 am

Just rereading ugo's last post . If there are pits in the surface then polish won't fill them in , nothing will fill in rust pits to be honest. You would really need to take the surface back to get to the bottom of the pits so to speak. Do you have any pictures of the knife before you started and where you are at at the moment?

Grendel · Post by **Grendel** » Sun Nov 20, 2022 10:12 am

Here's mine , well the one that's kept for the occasional puttying job. I have others one of which tends to gets used for two pack filler.

: IMG_20221120_100638.jpg (221.96 KiB) Viewed 1875 times

Perhaps not a mirror finish and has a few blemishes but it does the job I want it to

bourbon · Post by **bourbon** » Sun Nov 20, 2022 1:49 pm

I would put it on my wire brush, grinding polishing set up myself.

dewaltdisney · Post by **dewaltdisney** » Sun Nov 20, 2022 2:09 pm

I would sharpen the point and use it as a throwing knife. About the same use it would get for putty for me

DWD

Grendel · Post by **Grendel** » Sun Nov 20, 2022 5:28 pm

Mine doesn't get a lot of use nowadays to be honest. I used to make more use of one when I was in restoration and single glazed windows were come across more often. Nowadays in most places they are rare. Also I find that a stanley knife does just as good a job. Just really posted that picture to show that something perhaps not 100% perfect is perfectly acceptable and useable. Incidentally and completely off topic but I realise the camera on the tablet is absolute shite...