Disk grinder build up

JTknives

JTknives

Joined
Jun 11, 2006
Messages
8,650
have any of your disk grinder users had a problem of the spray stickum building up on the disk, and if so how do you remove it. also how do you apaly the spray. to the disk of the paper? it is building up on my disk and makes the serface a little bumpie, i got most of it of by spining the motor and using a knife to scrape it off.
 
Rubber cement thinner is good for removing spray adhesive. Try to keep it off your hands though, it's not good for your nervous system. I use a heat gun to soften the adhesive in order to remove the paper from the disk and then clean it up with the thinner. Most of the time I apply the spray to the paper and then attach it to the disk. For a stronger bond spray both the disk and paper and let it set up a minute before attaching.
 
http://www.knifeandgun.com/catalog/adhesive_remover_186643_products.htm

Or lacquer thinner, acetone, naptha, etc. I found I could only use the applied adhesive for about 2-3 abrasive sheet changes before it wouldn't stick properly anymore.
I'd then have to clean the disk and reapply. I don't like reapplying adhesive over old as it is not an even surface and the more layers you have the worse it gets, It won't help your knife finish for sure.
Keep that disk as flat as possible.
 
Stop cleaning that disk off while running the motor!
That's a good way to leave body parts laying on the shop floor.
And, there are all kinds of places that sell spay disk adhesive remover. I must have 5 cans of it.
 
kbaknife said:
Stop cleaning that disk off while running the motor!
That's a good way to leave body parts laying on the shop floor.
And, there are all kinds of places that sell spay disk adhesive remover. I must have 5 cans of it.
Click to expand...

Amen Brother! I have nightmares from reading the dangerous things people describe doing in here!

I was reading the post from the person who uses a knife on the spinning disc and I am having flasbacks from the high school drivers ed movies where the blood splashes on the windshield.
 
the motor was spinning like 50- 70 rpm, im not nuts. i could fallow a spot on the grinder as it turned.
 
3-M makes a adhesive remover that works great. I apply it to a very very slow moving disc. no paper just the disc and adhesive. Let it run for a while, then scrape it off. If there is any residue I dampen a rag with the solvent and clean off the rest. If you use the fethering disc adhesive or Franklin and apply it as directed, I have been able to use it for more than 10 changes before I had to re=apply. When you do use only enough to dampen the surface. I usually run a bead about halfway around the outside of the disc.. Since i have a lot of trimmings from all my paper I use a piece of that and spread it evenly around the surface. Just do not use the sandpaper if you are going to finish sand on the disc. You could get a piece of grit stuck into your adhesive and ruin a good finish. If you do go finer than about 150 you should clean off all the glue and run some clean glue on the disc, then I use a nice clean piece of cardboard. The finer the paper the slower the disc. The hard part is taking the time to really make sure all of the scratches are removed from the previous grit. It takes patience but it will happen. I do most of my finishing by hand. I can controll things much better and see what is going on. It actually seems to go faster. The biggest probelem with finishing on any machine is one slip and you are looking at hours to fix it. Well I've been longwinded enough. Good luck

Chuck
 
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