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Sandpaper velcro stops sticking

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Forum topic by nickbatz posted 07-21-2018 02:31 AM 337 views 0 times favorited 9 replies Add to Favorites Watch
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nickbatz

146 posts in 160 days


07-21-2018 02:31 AM

Topic tags/keywords: question sander

Does anyone have any insight into what happens to make the disk stop sticking to my random orbit sander after maybe 45 minutes of use?

I’m assuming dust particles are getting in there, but then you’d think the good vacuuming/blowing out might help. Nope.

Is it that I’m using cheap disks (which I may be, don’t remember)?

TIA


9 replies so far

View HerbC's profile

HerbC

1778 posts in 2939 days


#1 posted 07-21-2018 02:57 AM

The hooks have worn off the Velcro on the sander disk. You need to replace the hook pad…

-- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090

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nickbatz

146 posts in 160 days


#2 posted 07-21-2018 02:58 AM

I was wondering about that. Okay, thanks. Hope it’s available – or are they generic…

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Rich

3334 posts in 669 days


#3 posted 07-21-2018 03:51 AM

It could be the loops tearing out too. I had a box of Mirka AbraNet 120 grit disks that would start to fly off the sander after just a few minutes. I mention the grit because it was the only grit of 80, 120, 180, 220, 320, 400 and 600 that did that. If it weren’t for the 80 grit hanging in there I’d have suspected that the friction caused tear out of the loops. Since the 80s didn’t fail, I think maybe it was just a bad batch.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View AHuxley's profile

AHuxley

725 posts in 3401 days


#4 posted 07-21-2018 04:10 AM



It could be the loops tearing out too. I had a box of Mirka AbraNet 120 grit disks that would start to fly off the sander after just a few minutes. I mention the grit because it was the only grit of 80, 120, 180, 220, 320, 400 and 600 that did that. If it weren t for the 80 grit hanging in there I d have suspected that the friction caused tear out of the loops. Since the 80s didn t fail, I think maybe it was just a bad batch.

- Rich

Abranet will burn through the hooks on a pad in fairly short order that’s why Mirka and Festool sell sacrificial backing pads to be used with their net abrasives.

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nickbatz

146 posts in 160 days


#5 posted 07-21-2018 04:21 AM

Well, I ordered a replacement anyway. $9.83. If it lasts two years like the current one, I’ll be very happy.

But it’s the same sort of thing here too – some disks stick fine, others don’t. And unfortunately the very coarse ones I need to use right now don’t.

Also, could someone find the spare belt I have around here somewhere so I can use my belt sander? :)

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Rich

3334 posts in 669 days


#6 posted 07-21-2018 04:34 AM

It could be the loops tearing out too. I had a box of Mirka AbraNet 120 grit disks that would start to fly off the sander after just a few minutes. I mention the grit because it was the only grit of 80, 120, 180, 220, 320, 400 and 600 that did that. If it weren t for the 80 grit hanging in there I d have suspected that the friction caused tear out of the loops. Since the 80s didn t fail, I think maybe it was just a bad batch.

- Rich

Abranet will burn through the hooks on a pad in fairly short order that s why Mirka and Festool sell sacrificial backing pads to be used with their net abrasives.

- AHuxley

I use them. The disks still failed. Thanks anyway.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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nickbatz

146 posts in 160 days


#7 posted 07-24-2018 04:31 AM

Update: thanks HerbC, that solved the problem.

Who knew that velcro hooks wear out, let alone that you can replace that pad so easily!

View Fred Hargis's profile

Fred Hargis

5032 posts in 2573 days


#8 posted 07-24-2018 03:32 PM

It’s possible you’ve done the damage to the hooks yourself. If you press down on it while in use (instead of just letting it’s own weight do the work) it builds enough heat in the pad to destroy the hooks.

-- Our village hasn't lost it's idiot, he was elected to congress.

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nickbatz

146 posts in 160 days


#9 posted 07-24-2018 05:54 PM

Well, okay, but I’ve had this sander for a couple of years and used the heck out of it. If I have to spend $8 in two years for the next pad, that’s not a problem!

Still, I do keep my eye on the green/yellow/red lights that show you how much pressure you’re applying. But I was thinking about not burning up the motor.

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