General information about the Site

This lapidary and jewelry design community forum is dedicated to the novice, more experienced, and expert lapidaries and jewelry designers.

Forum cabochon in the Spotlight

Bob ( bobby1 ) shared this unknown druzy

Forum Jewelry Design in the Spotlight

John shared this beautiful pair of amethyst cufflinks

Forum Jewelry Design in the Spotlight

Mick B shared this stunning opal shell carving

Intarsias / Composites / Bead Making in the Spotlight

Kent shared this really nice Imperial Jasper pendant

Lapidary Related and Forum Member Shop Links

Brian Ababurko Silversmithing Classes / Rock Rollers Club

Dons Lapidary Arts

Idaho Rock Shop

Rare Rocks and Gems

Coyote Rainbow

Lightninghorse

Rocky Treasures

Talking Rocks

Fine Gem Designs

Idaho Rockman

Fine Woodwork and Lapidary

Darkstar Jewelry

DLC Gems

Teton Art Gallery

Art Cut Gems

Woman With A Torch

Lapidary Buy and Sell (Facebook Group)

Lapidary (Facebook Group)

Lapidary Equipment Marketplace (Facebook Group)


Lapidary / Gemstone Community Forum
June 17, 2019, 01:29:55 am
Welcome, Guest. Please login or register.

Login with username, password and session length
News:
 
  Home Help Search Login Register  

Adhesive for Sponge Pads

Pages: 1 2 [All]   Go Down
  Print  
Author Topic: Adhesive for Sponge Pads  (Read 427 times)
James D. Farrow
Sr. Member
****
Offline Offline

Gender: Male
Posts: 281


« on: June 06, 2015, 07:24:17 am »

O.K. I am getting the 3M Feathering Disc Adhesive to stick the (flexible) sanding discs to the
backing plates.

I am also putting "sponge pads" between the sanding disc and the backing plate.

I understand the reason for the Feathering adhesive so that when they wear out you
can remove them for replacements.

Do I use the same adhesive to first stick the sponge pad to the backing plate or
can I use a permanent adhesive for those?

I figure I will only be replacing the sanding discs and not the sponge pad or do they
wear out too?

The feathering adhesive is expensive so don't want to have to re-glue the sponge pad
every time I replace the sanding discs if I don't have to.

Yes? No?

James
Report Spam   Logged

James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"

kennyg
Sr. Member
****
Offline Offline

Gender: Male
Posts: 499



« Reply #1 on: June 06, 2015, 08:13:13 am »

I just get the disks and pads that already have the adhesive on them. They are labeled PSA.
Report Spam   Logged
James D. Farrow
Sr. Member
****
Offline Offline

Gender: Male
Posts: 281


« Reply #2 on: June 06, 2015, 08:33:44 am »

I just get the disks and pads that already have the adhesive on them. They are labeled PSA.

I did too. I also got a couple that are non PSA.

For the sponge pads with the PSA ,I assume they will only glue once. When you soak the backing plate in hot water
so you can remove a worn out sanding disc to replace it ,the sponge pad will also come un-glued as well.

If the sponge pad is still good (not worn) you will have to re-glue it back to the backing plate before you attach
a new sanding disc.

What I am asking is that if the sponge pads don't wear out, why not glue them to the backing plate once with
permanent adhesive. Instead of regluing them each time with the feathering adhesive.

I know this won't come up that often (we hope) but regluing the same sponge pads over and over again seems
like an unnecessary task.

Does anyone know if the sponge pads wear out?

James
Report Spam   Logged

James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"
Back
Full Member
***
Offline Offline

Posts: 161


« Reply #3 on: June 06, 2015, 09:46:26 am »

Hi James

The sponge pads can break down over time. I do have some that are more than 30 years old. I make my flat laps and I do use heavy duty glue for the backing.

Hope that helps.

Bless
Shawn
Report Spam   Logged
jakesrocks
Hero Member
*****
Offline Offline

Gender: Male
Posts: 2107


New Toy.


« Reply #4 on: June 06, 2015, 09:48:04 am »

http://www.atsacoustics.com/item--3M-Super-77-Adhesive-16-75-oz--1018.html?d=GPGEN01&kw=1018-3MS77

The stuff is expensive, but really does the job of sticking things.
Report Spam   Logged

A day spent without learning something new, is a day wasted.

Don

James D. Farrow
Sr. Member
****
Offline Offline

Gender: Male
Posts: 281


« Reply #5 on: June 06, 2015, 10:10:12 am »

Thanks!

James
Report Spam   Logged

James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"
jakesrocks
Hero Member
*****
Offline Offline

Gender: Male
Posts: 2107


New Toy.


« Reply #6 on: June 06, 2015, 11:31:33 am »

James, to stick the foam down spray the plate and one side of the foam. Let the spray dry for a minute, then stick the two pieces together.

For the discs, only spray the disc. let it dry for a minute and stick it to the foam. By only spraying the disc, you'll be able to peel it off without damaging the foam.

If at some point you have to remove the foam from the plate, let it soak in acetone for a while.
Report Spam   Logged

A day spent without learning something new, is a day wasted.

Don

kennyg
Sr. Member
****
Offline Offline

Gender: Male
Posts: 499



« Reply #7 on: June 06, 2015, 03:52:21 pm »

James said:
"For the sponge pads with the PSA ,I assume they will only glue once. When you soak the backing plate in hot water
so you can remove a worn out sanding disc to replace it ,the sponge pad will also come un-glued as well."

I may be missing the whole point but I have never had to soak the head in hot water the psa sanding disk should just peal off the foam always has for me. Are you using the black gunky stuff that comes in a tube? It shouldn't make any difference, all the adhesives I have used or seen are supposed to be water resistance hence you can use them as wet sanders maybe being hot makes the difference. They should be reusable several times before they are worn out. sorry if I'm not getting the point. Oh by the way the foam backing on a metal or plastic head will tend to tear when removing it but I never remove until it is degraded so much it won't work anymore.
Report Spam   Logged
James D. Farrow
Sr. Member
****
Offline Offline

Gender: Male
Posts: 281


« Reply #8 on: June 06, 2015, 05:04:15 pm »

James said:
"For the sponge pads with the PSA ,I assume they will only glue once. When you soak the backing plate in hot water
so you can remove a worn out sanding disc to replace it ,the sponge pad will also come un-glued as well."

I may be missing the whole point but I have never had to soak the head in hot water the psa sanding disk should just peal off the foam always has for me. Are you using the black gunky stuff that comes in a tube? It shouldn't make any difference, all the adhesives I have used or seen are supposed to be water resistance hence you can use them as wet sanders maybe being hot makes the difference. They should be reusable several times before they are worn out. sorry if I'm not getting the point. Oh by the way the foam backing on a metal or plastic head will tend to tear when removing it but I never remove until it is degraded so much it won't work anymore.


In another thread I was advised to get the 3M Feathering Disc Adhesive to glue non-PSA sanding discs to the back plate. This, I am led to believe, is not a permanent adhesive and the sanding discs can be removed and replaced when they wear out. I was under the impression you put the backing plate with the sanding disc stuck to it in hot/warm water to loosen them and then they just peel off. Maybe the water is not needed but I thought that's what was meant.

That works fine if you are just using sanding discs on top of the backing plate.

But I am putting a sponge pad (either PSA or Non-PSA) n-between the sanding disc and the backing plate. I don't want to use the same feathering adhesive on the sponge pad as I gather when I peal off the sanding disc the sponge pad, having the same adhesive will also peel off with the sanding disc.

That's why I was asking if the sponge pads wear out. If they don't, or at least not very often, then I want to use a permanent adhesive to
glue them to the backing plate, and only use the feathering adhesive on the sanding disc.

That way when I peel off the sanding disc the sponge pad will stay adhered to the backing plate and I don't have to re-glue it.

James


Report Spam   Logged

James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"
kennyg
Sr. Member
****
Offline Offline

Gender: Male
Posts: 499



« Reply #9 on: June 07, 2015, 08:22:50 am »

Thats the point I tried to make the spong on the metal or plastic plate seems to bond more and doesn't release as easily as the sanding dish does to the spong. Maybe I'm just lucky. Like Jakesrocks said try using the feathering glue on the plate and the sponge but only on the sanding disk when putting it on the sponge.I have a new sponge for a backing plate I'll try it today and post the results.

Report Spam   Logged
James D. Farrow
Sr. Member
****
Offline Offline

Gender: Male
Posts: 281


« Reply #10 on: June 07, 2015, 08:34:46 am »

Thanks!

James
Report Spam   Logged

James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"
kennyg
Sr. Member
****
Offline Offline

Gender: Male
Posts: 499



« Reply #11 on: June 07, 2015, 07:21:55 pm »







I'm going to have to do something about my resolution



Report Spam   Logged
James D. Farrow
Sr. Member
****
Offline Offline

Gender: Male
Posts: 281


« Reply #12 on: June 08, 2015, 04:44:13 am »

Thanks!

Looks like if you don't use water the disc will peel off and leave the sponge pad there.

Thanks again.

James
Report Spam   Logged

James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"
lithicbeads
Hero Member
*****
Offline Offline

Posts: 4924


« Reply #13 on: June 08, 2015, 06:22:04 am »

A 1200 grit worn pad with no sponge rubber backing is an excellent tool for removing small scratches or fixing bad spots on an almost finished piece. Thy cut very differently unbacked.
Report Spam   Logged

mirkaba
Hero Member
*****
Offline Offline

Gender: Male
Posts: 2303



« Reply #14 on: June 08, 2015, 11:20:19 am »

I use 3M adhesive. On the right hand side of my 8", on an aluminum disc, I have an 8 inch pad. Glued in the center is a 6" pad and over both an elk hide polisher that is wired on.  On the 6", right hand side, I have cow hide disc glued to pad which is glued on to a rubber flex disc. I sprayed both pieces to be glued, let sit for a minute and stuck them all together. They both seem to work Okay. I have actually worn leathers out and the glue never failed.
Report Spam   Logged

Bob

Gathering dust in Montana.
Isotelus
Hero Member
*****
Offline Offline

Gender: Male
Posts: 1027



« Reply #15 on: June 28, 2015, 06:41:46 pm »

Been using plio bond adhesive for years, Waldo Mart has it. Good for gluing Leather , Sponge Rubber etc to metal or masonite substrate. ( Wheels )

Does not come off with water. Heat Gun or Solvent will work to remove.
Report Spam   Logged

Bryan


Pages: 1 2 [All]   Go Up
  Print  
 
Jump to:  

Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum | Buy traffic for your forum/website

Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy