Hook & loop questions

[Larry Browning]

I have a Makita ROS that uses hook & loop to attach the paper to the sander. Most sanding disks stick to it like contact cement. But ever now and then a disk won't stick to it at all. I was thinking that it must be the cheap disks I've been buying, so I ordered some Klingspor disks. So far these disks stay on the sander for a while and then all of sudden the disk just flies off across the room. Is there something wrong with my sander or is this the way they let you know it's time to change the disk? There "piles" like you would see on old worn out flannel pajamas on the disks that won't stick.
Also, I seem to need to change grits before the disk wears out and when I reuse these disks, they seem to not stick as well as before and some won't stick at all when I try to reuse them. I thought disk reuse was one of the big advantages to hook & loop.
Comments please.

Larry

[Tyler Howell]

Larry,
It might be too much presure on the sander. The weight of the ROS and the abrasive should do all the work.
Anything else is just burning up paper and the brushes of you ROS.

[Mike Scoggins]

Larry,

You may need to replace the hook and loop pad on your sander. I have the PC333 ROS and have had to replace the pad before. I was having the same problem as you are describing and the replacement pad cured the problem. The "hook" had lost its bite.

Mike

[Larry Browning]

Larry,

You may need to replace the hook and loop pad on your sander. I have the PC333 ROS and have had to replace the pad before. I was having the same problem as you are describing and the replacement pad cured the problem. The "hook" had lost its bite.

Mike

Mike,
I would think this were true if it wouldn't hold the disk at all. But a new disk holds like super glue. It is extremely difficult to get the disk off the sander.

[Larry Browning]

Larry,
It might be too much presure on the sander. The weight of the ROS and the abrasive should do all the work.
Anything else is just burning up paper and the brushes of you ROS.

You might be right. I apply pressure sometimes.

Larry

[Mike Scoggins]

Mike,
I would think this were true if it wouldn't hold the disk at all. But a new disk holds like super glue. It is extremely difficult to get the disk off the sander.

Larry,

I see. I missed the point about the new disk holding firm in your original post. Tyler may have hit the nail on the head regarding too much pressure being applied.

Mike

[Mark Singer]

I have had better luck with Mirka than Klingspoor. Once the disk on the sander is worn it will throw every disc. If you ever sand without paper in it ...that will ruin it....Like the phone rings and you forget to install a disc...wow!

[Dale Thompson]

Larry,
You need to replace the disc on your sander. I had the same problem with my DeWalt ROS. I got a new disc and now I have the opposite problem. I can't get the darn paper OFF the disc. If it weren't for BAD luck - I'd have NO luck at all!!

Dale T.

[Daniel Rabinovitz]

Larry
I'm going to be number 6 reply post to tell you that your hook n loop pad has worn out becuase you are pushing on your sander, rather than just letting the weight of the sander and the grit of the paper do the job.
How's that - one long breath.
Daniel

[Larry Browning]

Let me get this straight. Even though a brand new disk sticks to the pad to the point that I think I am tearing the pad in half when I try to remove the disk, I still need a new pad because it eventually lets go after some extended use. Right???
This seems very strange to me. Why does it lose it's ability to hold the old disk but holds an new one fine?

Larry

[Dale Thompson]

Let me get this straight. Even though a brand new disk sticks to the pad to the point that I think I am tearing the pad in half when I try to remove the disk, I still need a new pad because it eventually lets go after some extended use. Right???
This seems very strange to me. Why does it lose it's ability to hold the old disk but holds an new one fine?

Larry

Larry,
I can't explain why you are having your specific problem. It may be that vibration is letting dust get between your sanding pad and the sanding disc. The most probable reason is that the pad on your sander is WORN OUT!

Larry, just TRY a new one. It might work. On the other hand, it may just be a gremlin which you have to deal with here in the Year Of Our Lord 01111010100! DANG! Did I get THAT wrong also??

Dale T.

[Larry Browning]

Ok! OK!
I will TRY a new pad. But where do I get it. Do you think Home Depot or Lowes carry such a thing? Or do I need to order it from Makita?
Man, you'd think these guys could make something that would last more than a year or 2 wouldn't you?

Hey Dale, you are the first person to comment on my signiture. And even more, you got it

larry

[Tyler Howell]

[QUOTE=Larry Browning]Ok! OK!
I will TRY a new pad. But where do I get it. Do you think Home Depot or Lowes carry such a thing? Or do I need to order it from Makita?
Man, you'd think these guys could make something that would last more than a year or 2 wouldn't you?

Hey Dale, you are the first person to comment on my signiture. And even more, you got it

Makita should have a service center in your area. Try them. I still say lighten-up a bit.
TJH

[Bart Leetch]

I have the Makita with the front knob & back handle which I purchased at ACE & that is where I got the new hook pad.

[Daniel Rabinovitz]

Larry
Sorry for the long delay in answering but I read the forum stuff and log out and go to lunch and don't get back until tomorrow.
So to answer:
The new sandpaper grips the curled over and smashed down gripping barbs on the velcro for a short time until you start pressing down on the ROS again. Then the sandpaper just starts to ooooooch around instead of "gripping fast". Then the sandpaper lets loose as you release your grip slightly because you are tired. Then you can't get the sandpaper to stick again because you've allowed the fuzz on the back of the sandpaper to smooth out due to ooooching and you've pressed the barbs on the ROS pad "down more".

Now, check out GOOGLE and do a search on the part number of the pad.
On the PC pads the model number is on the underside of the pad.
I came up with some pretty cheap replacement pads for my PC ROS by doing this.
Daniel