Getting a disc sander disc to stick on - How do you do it?

[Techie1961]

I have a disc/belt sander combo and I can't seem to get the discs to stay stuck to the steel plate. I have tried cleaning it with really good solvents so I know it isn't grease. I have tried a few different brands of discs as well.

Should I put some contact adhesive on the disc first? Is the surface finish of the steel plate poor? Need some help here please.

 

[zkling]

What disks are you using and what sander do you have? Just clean the disk well with a good solvent. If you are using good PSA disks they should stick on with no problem. If you are using sheets of sand paper a even coat of 3m 77? (may not be correct number) spray adhesive.

 

[DirtyJersey]

Backing pad?
Spray adhesive?

PICS are worth a 1000 words




Texting while driving

 

[lilredex]

It used to be as simple as applying a bit of "Sanding Disc Cement" as pictured.

But, it has been discontinued, and when I run out I'll have to resort to the spray ons. Watch for old stock of that cement and grab it. It is much like the stuff used for price stickers and will hold sanding discs on forever.

 

[Iron-Iceberg]

I have the same problem and I use good 3m disks. I tried spray adhesive one time and it worked good. But then when I tried to get it off it was a nightmare.
So I'm open to ideas too.

 

[zkling]

If you can't get the spray adhesive off, use a little bit of heat from the heat gun.

 

[Hammer1963]

Lacquer thinner, mineral spirits, acrylic enamel and Urethane reducers will leave a film on the metal which can lead to poor adhesion so make sure your final cleaning is with isopropyl or denatured alcohol. This may help

 

[Techie1961]

The sander is from Busy Bee which is a Chinese machine store in Canada. The brand is Craftex. I have tried the discs that they supply which is in the photo as well as a premium brand from a local industrial supplier.

I cleaned the steel disc plate with essentially brake cleaner which is Perc as well as an nPb solvent. They are 100% volatile so there shouldn't be a residue.

I'm wondering if the disc plate isn't smooth enough. Could also be out of date discs and stale PSA.

 

[stevenhs]

You needs to glue the disc on the metal surface. 3m adhesive spray can

 

[DTE]

This is what we use, you could buy it in a spray can also.http://3mcollision.com/3m-feathering-disc-adhesive-type-2-08051.html

 

[DenisG]

Try zapping a disc in the microwave and see if that works. (The microwave trick works on old rolls of masking tape.)

 

[Hammer1963]

Try zapping a disc in the microwave and see if that works. (The microwave trick works on old rolls of masking tape.)

You are correct on the masking tape and may help with this too.

 

[ZRX61]

Try zapping a disc in the microwave and see if that works. (The microwave trick works on old rolls of masking tape.)

That, or attach the disc & then give it a work over with a hot air gun to get it toasty.