LumberJocks

Using Mirka Abranet Sanding Discs on Bosch 5" ROS?

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by Lovegasoline posted 06-30-2020 08:59 PM 758 views 1 time favorited 16 replies Add to Favorites Watch
View Lovegasoline's profile

Lovegasoline

93 posts in 809 days


06-30-2020 08:59 PM

Hello All,
I’m curious if anyone is intimately familiar with Mirka’s mesh abrasives and can advise me if backing pad product(s) exist to allow the use of Mirka’s product line of 5” mesh abrasive discs (ex. Abranet, Autonet, etc.) on a 5” Bosch ROS.

My Bosch is an older model (3725DVS) and the backing pad attaches to the body of the sander with a single hex socket head cap screw. (I’m not sure if current production Bosch ROS sanders use the same backing pad attachment design & screw).

My understanding is that to benefit from the improved dust collection possible with Mirka’s mesh sanding discs, a super-perforated (i.e. 28 hole or so) backing pad is utilized. And that these are available in hard or soft (and other?) version depending on the sanding application (my sanding application for the most part is flat hardwoods).
Question: is there such a pad offered by Mirka that fits the aforementioned Bosch backing pad attachment system?
Question: if not is there either, a.) an adapter sold, or b.) and aftermarket pad sold, that functions in a simliar manner for the Bosch ROS?

Mirka also sells Backing Pad Protectors. From my understanding these are designed to fit between the backing pad and the mesh abrasive disc; these are conceived as a optional consumable product that extends the life of the more expensive backing pad (i.e. they wear out from the heat generated during sanding, preventing the tiny hooks on the backing pad sustaining premature wear). These also come in thick and thin versions(?).
Question: which is recommended for my aforementioned application?

The CSRs and sales reps at the abrasive sales companies I’ve contacted are shockingly ignorant about the Mirka product line they sell. That’s the reason for posting here. (Mirka has truncated hours so I haven’t contacted them).

Thanks a bunch for any insight in to these products.


16 replies so far

View Rich's profile

Rich

5608 posts in 1360 days


#1 posted 06-30-2020 10:36 PM

I use them all the time on my Bosch ROS and other sanders like Makita and DeWalt. They work really well. I do use the interface pads. Someone on here suggested they might be needed to prevent the more aggressive hook material on some sanders from poking through the mesh, particularly on the finer grits. True? I have no idea. But I use them.

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

View Kazooman's profile

Kazooman

1489 posts in 2723 days


#2 posted 07-01-2020 12:19 AM

Yes. Use the additional backing pad adapter. It works great. As you suggested, the heat from sanding can deform the hooks on your standard Bosch ROS. Well known and well documented issue. One problem you might have is that the hole pattern on the adapter pad does not align with the holes in your Bosch pad. At least mine do not. I bought a cheap set of hole punches at Harbor Freight and added holes where needed to get the Bosch pattern drawing well for dust collection. I love the Mirka Abranet disks. I will never look back.

View pottz's profile

pottz

9851 posts in 1755 days


#3 posted 07-01-2020 12:32 AM

yeah i use them all the time on my porter cable and dewalt sanders,as kazooman said just modify the pad,they last a long time so it’s no big deal to take some time and make them work.my main use though is with my mirka deros ros sander thats made just for them.but you may not want to drop 6 bills on one.

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View Lovegasoline's profile

Lovegasoline

93 posts in 809 days


#4 posted 07-01-2020 03:46 AM

OK. So I assume then that Mirka doesn’t sell adaptors to fit their backer pads to non-Mirka sanders, or backer pads made to fit other sanders? And conversely that the other major tool manufacturers do not produce and sell either adaptors to fit the Mirka backers to their tools or accessory backer pads to work optimally with mesh abrasives and vacuum dust collection? They seem like sensible corporations … why would Mirka restrict the otherwise large market of mesh abrasives to the small demographic that own Mirka tools? Why would Bosch and other major tool manufactures hobble their tools by making them incompatible with mesh abrasives by not offering accessory pads? Both positions seem short sighted from a sales perspective.

Very well. Who wants to go into business making adaptors for the Mirka Backer Pad to fit various other makers’ ROS?
Or entire backer pads for a wide spectrum of tools brands made to work optimally with the mesh abrasive disks to fill the void in the marketplace?

[Rant off]

So, it looks like I’ll have to make my own backer pad to work with mesh discs and optimize dust collection.
My pad looks to have a pretty tough plastic back. I do own a set pf punches originally purchased for leather but I think drilling the backer pad until it is suitably and liberally perforated would be a lot easier. Then buy the Mirka pad protector and drill that as well.

No, I’m not ready to drop 6 bills on a ROS. My ROS is … how old? 20 years? Older? I don’t know. It’s a work horse and has never disappointed me or failed at the tasks I’ve asked of it so I see no point in replacing it. It’s taken a beating and is still good as new. A ROS that has some sort of high tech vibration reduction system (if such a thing actually works) that’s easier on nerves of the hands would be useful, but I make do with a padded leather glove + extra palm pad fashioned from closed cell foam.

I’ve fortunately steered clear of the Festool and Mirka tools nice as they are … I can’t say the same for the premium hand tools.

Thanks for all the replies.

View Rich's profile

Rich

5608 posts in 1360 days


#5 posted 07-01-2020 04:37 AM


OK. So I assume then that Mirka doesn t sell adaptors to fit their backer pads to non-Mirka sanders, or backer pads made to fit other sanders?

[...]

- Lovegasoline

Wow. That escalated quickly.

My post intimated nothing of that sort.

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

View Lovegasoline's profile

Lovegasoline

93 posts in 809 days


#6 posted 07-01-2020 05:15 AM

Wow. That escalated quickly.

My post intimated nothing of that sort.

- Rich

^No … it was a long slow ascent. So slow in fact I don’t even perceive it as an escalation but the arrival at the logical conclusion.
You just weren’t privy to the other 98% of my efforts that preexisted my considerations of posting to this forum … it’s not a conclusion drawn from your single data point Rich ;)

...

Now if such things do exist, the marketing/sales/PR staff should all be fired as keeping it a closely guarded secret would appear counter indicated for generating profits from such aforementioned, hypothetical entities.

View Lovegasoline's profile

Lovegasoline

93 posts in 809 days


#7 posted 07-01-2020 11:00 AM

The other side of a dirty coin … good that Mirka doesn’t offer a backing pad to fit the Bosch!
$40 for a backing pad? A backing pad?? A chunk of plastic backed foam with perhaps a chip of metal? Ha! There must be some proprietary secrets and materials. Are the diameters of the individual holes in the backer pad patented? Or maybe the foam crosses the threshold between organic and inorganic?
$40?!?

I laugh robustly!

View Kazooman's profile

Kazooman

1489 posts in 2723 days


#8 posted 07-01-2020 11:38 AM

Whoa! What I am talking about is a thin disk of material that Mirka sells. Hooks on one side, loops on the other. You attach it to your existing Bosch sander and then mount the Abranet on it. It just protects your sander pad. The problem is that the Abranet is so thin that the hooks on your sander can actually stick through the mesh. They can then rub on the work piece, get hot, and melt.

You do not need to modify your sander in any way. What you might need to do is modify the Mirka disk so that there are holes that line up with your sanders hole pattern. I just took one of my regular sanding disks and held it up to the Mirka adapter to get the best alignment of holes. I found I needed to enlarge a few holes and add a couple. Simple.

View Craftsman on the lake's profile

Craftsman on the lake

3335 posts in 4209 days


#9 posted 07-01-2020 12:09 PM

The first person replying indicated that someone that a pad would be needed to stop hook wear. It may have been me as I reviewed this years ago on here with that recommendation.

I’ve had two of these sanders. I love the Mirka stuff but stopped using them as no matter what I did the hooks on the pad eventually wore off and the stuff no longer sticks. Yes I used the interim pad between them to stop this but it still seems to do it.

I even stopped using regular sanding paper with holes as occasionally the holes will get out of alignment, or even if the sandpaper loosens and slides once an awhile the area under the holes will wear the hooks off quickly. My sister has a dewalt and I’ve seen other brands. The Bosch sanders seem to have very tiny velvet like hooks compared to coarser ones on other sanders. I think this is part of the problem. Love the sander but this frustration was hard to live with.

That being said, I did think it was a great, almost vibrationless sander. But, these days I’ve got an air powered sander with hook and loop and no holes and the same pad for years with no velcro issues.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

View pottz's profile

pottz

9851 posts in 1755 days


#10 posted 07-01-2020 02:29 PM



Whoa! What I am talking about is a thin disk of material that Mirka sells. Hooks on one side, loops on the other. You attach it to your existing Bosch sander and then mount the Abranet on it. It just protects your sander pad. The problem is that the Abranet is so thin that the hooks on your sander can actually stick through the mesh. They can then rub on the work piece, get hot, and melt.

You do not need to modify your sander in any way. What you might need to do is modify the Mirka disk so that there are holes that line up with your sanders hole pattern. I just took one of my regular sanding disks and held it up to the Mirka adapter to get the best alignment of holes. I found I needed to enlarge a few holes and add a couple. Simple.

- Kazooman

ditto those pads dont cost 40 bucks,no rocket science involved here to use em on other sanders.if it’s an irritant go back to regular sanding disc’s.

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View Rich's profile

Rich

5608 posts in 1360 days


#11 posted 07-01-2020 09:51 PM


You just weren t privy to the other 98% of my efforts that preexisted my considerations of posting to this forum … it s not a conclusion drawn from your single data point Rich ;)

- Lovegasoline

Got it. The interface pads I’m talking about are these:

https://www.amazon.com/Pack-Mirka-Abranet-Faced-Protector/dp/B01LXHJIB0

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

View Lovegasoline's profile

Lovegasoline

93 posts in 809 days


#12 posted 07-04-2020 12:08 AM


ditto those pads dont cost 40 bucks,no rocket science involved here to use em on other sanders.if it s an irritant go back to regular sanding disc s.

- pottz

If you read my post I clearly referred to the backer pad ”$40 for a backing pad?” ... not the backing pad protectors.

Here’s a backer pad for my BOSCH (Bosch RS031 5” Soft Sanding Pad (3107DVS, 3725DEVS) approx. $8:
https://www.amazon.com/Bosch-RS031-Sanding-3107DVS-3725DEVS/dp/B0009H5MUW

Here’s a backer pad for the MIRKA’s (Mirka 915GV 5-Inch Grip Faced Abranet Vacuum Pad) approx. $37:
https://www.amazon.com/Mirka-915GV-5-Inch-Abranet-Vacuum/dp/B004BG5CSE

Those are the cheap ones. The other MIRKAs go for about $45, including the 8 holes pattern ones, like my BOSCH.

When I first saw the pricing I was trying to figure out what engineering could conceivably justify the outlandish price tag. Were there chips and highly sensitive and diverse sensors embedded in the backing pad to transmit substrate data to the sander? Precious metal wafers laminated to the foam?

Nope.
Rather than advancement in technology it seems to be an advancement in the marketing and sales department:
Executive #1: “Do you think we can get them to pay $50 for a backing pad … and which might even get chewed up using our discs?”
Executive #2: “Yes! I love it!”
Executive #1: “How about a subscription service for the backer pads, they pay an annual fee and each month they get a new backer pad?”
Executive #2: “I dunno. I don’t think it will catch on.”
Executive #1: “I know! We’ll sell them insurance, lol!!
We’ll sell them intermediate pads as a consumable, as a form of insurance to protect the high priced backer pads!
Executive #2: “Yes! Yes! Ha ha ha!!!! Priceless!

I laugh robustly.

View Lovegasoline's profile

Lovegasoline

93 posts in 809 days


#13 posted 07-04-2020 12:20 AM



The first person replying indicated that someone that a pad would be needed to stop hook wear. It may have been me as I reviewed this years ago on here with that recommendation.

I ve had two of these sanders. I love the Mirka stuff but stopped using them as no matter what I did the hooks on the pad eventually wore off and the stuff no longer sticks. Yes I used the interim pad between them to stop this but it still seems to do it.

I even stopped using regular sanding paper with holes as occasionally the holes will get out of alignment, or even if the sandpaper loosens and slides once an awhile the area under the holes will wear the hooks off quickly. My sister has a dewalt and I ve seen other brands. The Bosch sanders seem to have very tiny velvet like hooks compared to coarser ones on other sanders. I think this is part of the problem. Love the sander but this frustration was hard to live with.

That being said, I did think it was a great, almost vibrationless sander. But, these days I ve got an air powered sander with hook and loop and no holes and the same pad for years with no velcro issues.

- Craftsman on the lake

Craftsman on the Lake,
Thanks for your feedback. I’d have never imagined the H&L design itself was so diverse among major manufacture’s ROSs. If what you say is true, if I decide to explore the MIRKA net abrasive discs, it may mean using an old beat out Bosch backer pad and sanding the hooks completely off, then glueing on a disc of proper beefy long-reach H&L (male/hook). Then to complete the sandwich drill a couple dozen holes in it, put a Mirka backer pad protector, then the net abrasive … and see what all the fuss is about.

View Kazooman's profile

Kazooman

1489 posts in 2723 days


#14 posted 07-04-2020 01:07 AM

OK. Just opt out. You do not have to use the Abranet system. For me, the proud owner of a Bosch ROS, Abranet has proven to be the absolute best solution to sanding out there.These disks work like crazy and last many times longer than standard sanding disks. Due to the thin nature of the disks there can be a problem with OLDER incarnations of the hook and loop system. Mirka COULD have required you to purchase an entire new backing pad for your sander, at a considerable cost. They offer this as an option for many of the most popular sanders. For the rest of the world they offer an adapter pad that makes the connection between disk and sander, protecting your existing pad. These adapter pads go for about five bucks a throw. Back when I switched to the Abranet system they came in packs of two. I am still using the first one. I fail to see the problem here. Use the Abranet pads with the adapter or forget about it. Simple.

View Rich's profile

Rich

5608 posts in 1360 days


#15 posted 07-04-2020 01:08 AM


Here s a backer pad for the MIRKA s (Mirka 915GV 5-Inch Grip Faced Abranet Vacuum Pad) approx. $37:
https://www.amazon.com/Mirka-915GV-5-Inch-Abranet-Vacuum/dp/B004BG5CSE

- Lovegasoline

OK, one more try.

A) You don’t need that. All you need are the interface pads I linked to above. A five-pack for $21.50 shouldn’t break the bank.
B) It’s expensive because it’s Mirka. Mirka is expensive stuff. Check out their $640 sander if you doubt it. I’m pretty sure anyone who pays that for a sander won’t bat an eye at $37 for a replacement pad.

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

showing 1 through 15 of 16 replies

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com