LumberJocks

Cleaning a Granite Block

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by Daibach posted 2313 days ago 1413 views 0 times favorited 14 replies Add to Favorites Watch
View Daibach's profile

Daibach

5 posts in 2317 days


2313 days ago

Topic tags/keywords: blade sharpening question

I bought a flat granite block for tool sharpening, fastened two different grits of sandpaper on it with spray adhesive and have been happily sharpening a couple of old chisels, plane irons and started on the sole of my old cheap plane. So it’s time to put on some fresh sandpaper.
How do I get the old stuff off without damaging the block’s surface?
Can I use an old wide flat chisel, or a putty knife? Is granite harder than steel or do I risk scratching the surface? Soak the old paper in Glue Gone or…..?

Thanks.

-- Daibach on the Wet Coast


14 replies so far

View tenontim's profile

tenontim

2131 posts in 2342 days


#1 posted 2313 days ago

You might check the label of the adhesive for clean up. When I use the sand paper technique for sharpening, I just spray the surface with water. The wet/dry sandpaper will stay in place and you don’t have the clean up problem.

View Betsy's profile

Betsy

2913 posts in 2494 days


#2 posted 2313 days ago

Tenontim is right. The paper is held on by water power only.

As far as cleaning off the adhesive, when I use the spray adhesive with my scroll saw if I have a piece that won’t come off – I first try to heat it up with my hair dryer. That melts the adhesive and allows it to be pulled off. If that does not work – I use mineral spirits—- I use that as a last resort though.

-- Like a bad penny, I keep coming back!

View Greg3G's profile

Greg3G

815 posts in 2683 days


#3 posted 2313 days ago

Try a razor blade. That’s what I use to remove my self adhesive sandpaper from my glass sharpening plates. Adrian and I did a bit of sharpening when he was here. I soon had to remove the old paper (it had been on way too long) and was rather stuck. We finally used some “goog off” to help remove it.

-- Greg - Charles Town, WV

View rikkor's profile

rikkor

11295 posts in 2472 days


#4 posted 2312 days ago

When you get it cleaned up stick the paper on just with water. You’ll be surprised how well it works.

View Thos. Angle's profile

Thos. Angle

4435 posts in 2560 days


#5 posted 2312 days ago

I use a 24×24 x3 inch granite surface plate to carve leather and sand wooden plane soles. My cousin, who is a tool and die maker, told me to clean it with Windex. That’s what I’ve used and it really works. If I get glue on it I use a heat gun and a sharp chisel.

-- Thos. Angle, Jordan Valley, Oregon

View TomK 's profile

TomK

504 posts in 2472 days


#6 posted 2312 days ago

On the other hand, no normal solvent is going to damage granite, short of strong acids, and the minerals that it is composed from are harder that most tool steels.

-- If you think healthcare is expensive now, wait until it's free! PJ O'Rourke

View GaryK's profile

GaryK

10262 posts in 2586 days


#7 posted 2312 days ago

Razor blades and MEK. MEK will get off any adhesive.

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View Myron Wooley's profile

Myron Wooley

226 posts in 2494 days


#8 posted 2312 days ago

Mineral spirits are easier on your nose hairs than MEK.

-- The days are long and the years are short...

View tenontim's profile

tenontim

2131 posts in 2342 days


#9 posted 2312 days ago

MEK makes me happy!

View Daibach's profile

Daibach

5 posts in 2317 days


#10 posted 2312 days ago

Thanks for all your suggestions.
The adhesive container had no information about removing the old stuff.
I finally got up the courage to use an old chisel to gently scrape off most of the paper, then tried soaking and scrubbing the remaining paper and adhesive with isospropyl alcohol which did nothing, and then Goo Gone which worked great. No sign of any scrapes on the block.
Once the block was cleaned up I tried a piece of sandpaper with just water to hold it in place; you’re right, water is all that’s needed.
Back to taking the hollow out of the sole of my old plane.
Thanks again.

-- Daibach on the Wet Coast

View motthunter's profile

motthunter

2141 posts in 2397 days


#11 posted 2312 days ago

if you ever need to resurface it, counter guys have the tools and materials.. I am sure that you can get one to do you a solid and polish it up for a cheap price.

-- making sawdust....

View Phildo92027's profile

Phildo92027

53 posts in 2397 days


#12 posted 2309 days ago

A machinist once told me that they used WD-40 to clean the 4’ x 8’ x 12” thick surface plate (availale free of charge if you can move it.) I have used WD-40 for cleaning the surface plate (with both razor blade and putty knife with no damage. I also use WD-40 for cleaning silicon carbide abrasives (when sharpening) and diamond plaes.

-- Phil, Near San Diego, CA

View rikkor's profile

rikkor

11295 posts in 2472 days


#13 posted 2308 days ago

I have also heard that WD-40 is good for cleaning.

View fredf's profile

fredf

495 posts in 2308 days


#14 posted 2301 days ago

Phil, thats only about 11.6 tons—at least 1.25” counter top is about 75# a sq ft . . . . a might heavy piece of granite for sure!

-- Fred, Springfield, Ma

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase