Shopsmith Forums

8iowa wrote:Like dragon, I now have several flat and conical disks so that I can access different grids.

That said, putting the disk in the oven on a low setting will soften the glue and make it easy to remove an old sanding disk. 3M77 can be used to re-fix old sanding paper on a disk. However, as Nick pointed out to those of us who attended the July week-end, do not use 3M90, as it is permanent.

8Iowa
Any good suppliers of 3M77 ????
Thanks in advance

Dusty: I'm pretty sure that Nick used the word "permanent", with enough emphasis to convince me.

Ed: I bought 3M77 at Lowes. I'm pretty sure that it is a standard item with them.

I have not used 3M77 specifically on sand paper attached to a disk, but I have used it to attach sandpaper to flat glass plates for wet/dry sharpening.

Look out that 3M 77 isn't cheap and my wife has discovered it's a great adhesive. every time I want it in the shop I need another can:p fjimp

That's funny, Jim! Sounds so much like happenings around this place. Enjoy!

I use the oven trick also for applying the paper. For me a warm disc seems to work better.

Thanks for all your help......I will be looking for additional discs and stop trying to save the paper it's not worth the time and frustration.

Thanks again for all your suggestions!

Sawmiller;)

[quote="sawmiller"]Thanks for all your help......I will be looking for additional discs and stop trying to save the paper it's not worth the time and frustration.

Thanks again for all your suggestions!

Sawmiller]

This is definitely the way to go. Shopsmith had a special sale package on three conical disks with paper when I bought mine. I now have a flat and a conical disk for each grit. Well worth the money.

Troy

horologist wrote:This is definitely the way to go. Shopsmith had a special sale package on three conical disks with paper when I bought mine. I now have a flat and a conical disk for each grit. Well worth the money.

Troy

Sorry I missed THAT one!:(

If all else fails take the sanding disk with the paper that stuck on it and set it out in the drive way, way from the house. Pour some gas on it and let it soak for a few minutes, resoak it and throw a match to it. After the fire goes out the disk will be pretty clean, nothing a little bit of wiping with a cloth won't remove.

JUST KIDDING DON't DO THAT!!!!

However I have found that both Acetone and Naphtha will loosen the glue without ruining the paper. However both chemicals are flamable and care should be taken using them. Also the paper is very flamable until completely dry after doing this. Make sure you put it in a safe place to dry before you throw into a cabinet or somewhere, where fumes can accumulate.

Took a trip to Lowes and HD and found 3M77 but I also found 3M44 or 45 I can't remember.
My question is 44(45) less permanent that 77. My reasoning is someone cautioned about using 3M90 as it was too permanent, so I'm assuming the lower the number the less permanent. Is that valid?

The reason I ask is like 8Iowa said 3m77 is about $10 a can while the 3M44(45) is around $5. Also both stores had a Duro product and one other manufacture.

Lastly I know the Auto supply houses sell a product called spray PSA glue. The use it on their DA sanders. Auto shops swap paper fairly often and I would think this glue would be right on the money for woodworking. Anyone using it?