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Scary Sharp - proper way to attach sandpaper???

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Forum topic by Randy_ATX posted 158 days ago 731 views 1 time favorited 13 replies Add to Favorites Watch
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Randy_ATX

664 posts in 1040 days


158 days ago

Scary sharp is the only sharpening method in my budget at the moment (19yo college and 16yo kids).
What is the secret for attaching the sandpaper so that it doesn’t buckle/rip??? I first tried taping the top and bottom, that just loosens up, buckles and rips. I then tried spraying the back with a really tacky adhesive and that kept the sandpaper from moving but I ruined the glass – when it came time to swap out the sandpaper I couldn’t get the adhesive off the glass and the result was too rough to try and put new sandpaper on top of it. I just obtained a nice flat piece of granite this weekend so I would like to know the best way to try this again. Is there a better backed andpaper to use? I’ve been using the standard full sheets (paper backed?) one can pick up at borg and cutting them in half. Thank you!

-- Randy -- Austin, TX by way of Northwest (Woodville), OH


13 replies so far

View 7Footer's profile (online now)

7Footer

860 posts in 547 days


#1 posted 158 days ago

Haven’t done it myself but heard many people say they just used a spray bottle full of water and spritz the granite/glass and the friction between the paper and flat surface holds it for that sharpening session.

-- If a kid asks where rain comes from, I think a cute thing to tell him is "God is crying." And if he asks why God is crying, another cute thing to tell him is "Probably because of something you did." -

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shipwright

4842 posts in 1396 days


#2 posted 158 days ago

3M PSA backed film from toolsforworkingwood.com
Use it in half sheets on 6”X 12” glass like this.

Works great !

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View TiggerWood's profile

TiggerWood

192 posts in 205 days


#3 posted 158 days ago

Like 7Footer said, I get wet dry sandpaper, spray the bottom with water, and mat it down on the granite.

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TerryDowning

998 posts in 716 days


#4 posted 157 days ago

I use 3M 77 spray adhesive (sprayed on the back of the paper) with my granite tile. I have an old chisel to help scrape off used paper/adhesive. Razor blade scarper works well too.

While I do have the eze lap diamond stones now. I still use sandpaper on granite for coarse grinding work (220 and more coarse when needed).

-- - Terry

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screwikea

6 posts in 538 days


#5 posted 157 days ago

Spray adhesive—there are a bunch on the market, and big box stores carry a few.

When you get done with it, pull the sandpaper off of the glass, and use mineral spirits to clean it up.

That’s how I always do it!

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SCOTSMAN

5243 posts in 2183 days


#6 posted 157 days ago

A hammer and five six inch nails is what I use straight into the granite works nevery time.Alistair

-- excuse my typing as I have a form of parkinsons disease

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CharlesA

1044 posts in 396 days


#7 posted 157 days ago

Mineral spirits make short work of spay adhesive.

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b2rtch

4286 posts in 1646 days


#8 posted 157 days ago

I used Klingspor self adhesive sand paper

-- Bert

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bigblockyeti

1374 posts in 319 days


#9 posted 157 days ago

I use contact cement, costs a fraction of what they want for spray adhesive and lasts three times longer. It does take a few minutes as you have to wait for both surfaces to get tacky before putting the paper to your substrate. Usually peel off what I can and scrape the rest off with a razor blade.

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OSU55

100 posts in 588 days


#10 posted 157 days ago

I use the 3M 77sprayed lightly on the back of the paper. Amonia or glass cleaner will remove the adhesive. Spray the amonia on fairly heavy and let sit a few minutes. The longer it sits the easier it gets. Wipe off with paper towel. I use a razor scraper for stubborn spots

View Fred Hargis's profile

Fred Hargis

1644 posts in 1091 days


#11 posted 157 days ago

Yeti, I hadn’t though of contact cement….do you have any trouble getting the sandpaper flat against the glass? I’ll have to give that a try.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

View Randy_ATX's profile

Randy_ATX

664 posts in 1040 days


#12 posted 157 days ago

Thanks guys – I appreciate all the input. For some reason I didn’t think of using solvent to try and clean the glass, only razors which couldn’t remove the adhesive. I will try some of these suggestions.

-- Randy -- Austin, TX by way of Northwest (Woodville), OH

View bigblockyeti's profile

bigblockyeti

1374 posts in 319 days


#13 posted 153 days ago

No problem getting the paper flat, just have to carefully start at one end and kind of roll the paper onto the glass. Also have a silicone roller, sort of like a J-roller to provide pressure for the bond, only nothing will stick to it unlike my J-roller.

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