Does anyone have a WAG as to what grit a brown paper bag may be?

600?

800?

1000?

 

Just a WAG is good.

 

Thks

 

smitty

I think @Gene Howe uses these for the final finishing, maybe he knows.

I wouldn't rate them at any of the choices, much finer (just my opinion) . Maybe like FFFF pumice. You did ask for a wag....

Edited August 16, 20223 yr by Fred W. Hargis Jr

Brown paper bags knock down the dust nibs and not much than that in my opinion.  Never leaves any visible sanding scratches.

Alexis can you WAG this for us please? 

 

https://www.penturners.org/threads/grit-equivalent-of-paper-bag.35434/

 

A few other blog or article snipets supported this with guesstimates between 1500 and 2500 grit equivalent. Who knew.

 

Years ago working on highly lapped, polished, critical internal parts of diesel injectors and injection pumps, I used brown paper bag pieces along with mutton tallow to polish parts. It was the recommended and accepted practice of the time.

 

Good question Smitty.

 

 

Edited August 16, 20223 yr by Grandpadave52
Tablet can't speel

1 hour ago, lew said:

I think @Gene Howe uses these for the final finishing, maybe he knows.

Dan has it.

39 minutes ago, HandyDan said:

Brown paper bags knock down the dust nibs and not much than that in my opinion.  Never leaves any visible sanding scratches.

I only use it occasionally.  

Folded a few times and, charged with the green stick, it's a decent lapping surface. 

I have not used that type of bag but I agree that it may not have to do with the amount of grains.

1 hour ago, matespormayor said:

I have not used that type of bag but I agree that it may not have to do with the amount of grains.

Welcome to The Patriot Woodworker Nicholas. Great to have you on-board and participating immediately. Looking forward to future interactions.

 

When you get a chance you might considering starting a thread in INTRODUCE YOURSELF Forum telling us a little more about yourself and your woodworking interests, challenges and projects. We love pictures too. Thanks for joining us.

I've used it soaked in mineral spirits, works as advertised.

That's too funny. I often use a folded brown paper bag to buff the surface of shellacked boxes that I've made. It does awesome job. It looks and feels close to a wet and dry 1200 grit IMO.

Edited February 2Feb 2 by MrRick