revisit my conical disk and sandpaper issues

[reible]

Hi Tim,

You are right and I have 5 of the standard disks. Three are for PSA in 3 grits, one has the Velcro system (easy to change grits but not good for all sanding) and one setup for sharpening. An additional conical would be all I need as I typically only use two grits.

I already have my budget list started for next year, based mostly on things I had to put off this year, but it's time to add some other things that will be new to the list.

Well it is either that or start house hunting down by Chuck...

Ed

[Ed in Tampa]

...As I mentioned I only see this happen when I REUSE the sandpaper. If it is new and I put it on it stays just fine and will stay until it is used up. I can then replace it with another new piece of sandpaper and have done this many times... NO PROBLEMS at all.

If I take a sandpaper off and put it on the backer paper then put it back on the disk I'm 2 for 2 with having problems. In this second case I even sanded with it last fall and it worked fine... but over wintering took its tole and the paper was quite loose when I went to use it. Had that been a fresh piece of sandpaper I can about say for sure it would have still been stuck down(this was the first time I have ever seen sandpaper do this over a winter and the first time I have had reused paper on the disk over winter.

Since I use the same basic process with new sandpaper as I do with the "reuse" sandpaper I would have expected them to act the same way, however that has not been the case for me...

Ed

Ed
I think what you seeing is very realistic, as far as sticking and unsticking the paper and having it eventually come off. I reuse paper alot but I will be the first to admit that each 'put on take off cycle' reduces the amount of adhesion of the paper.

I think that is only natural and must be expected. Also the fresher the paper the more cycles it will endure before it fails to adhere. Other factors include the cleanliness of the shop environment, the environmental temperature, the sanding force used, highest attained temperature the paper endured, the cleanilness of the disk and hands handling the paper and disk and etc all effect the life of the paper and the number of 'put on take off cycles'.

I have found that for longest life the paper should be applied once and used until it is used up. I personally don't use my conical disk alot and I only have one but I have three flat disks. One with velcro and two, with one for each grade of paper I normally use. If I would use my conical disk more I'm sure I would probably buy one or two more to insure I get maximum usage from my paper.

Incidentally I store my disks so two faces are pressed together and the third is sitting flat on it's face. I agree the more paper is kept under pressure the more likely it is to come loose when you least expect it.

[keakap]

Sounds like your problem with the disk is caused by Northern Illinois climate and cold weather.

Solution! buy more disks or MOVE!

I dunno. You can't get more south U.S. than here, and I gotta tell ya, the only thing that sticks reliably in Hawaii is your shirt to your back.

[charlese]

I dunno. You can't get more south U.S. than here, and I gotta tell ya, the only thing that sticks reliably in Hawaii is your shirt to your back.

Got me there! Maybe it's the himidity? Maybe this is the only place in the whole world where the stuff sticks!:rolleyes: