Making your own linisher abrasive band belts from a bulk roll of it .

[not done it yet]

My comment would be to avoid `temu’ for reliability of gluing products. To cheap. Rely on well known, reliable, manufacturers of the products!

 

[ukracer]

I guess it depends on the quality of the patches.
Where I worked we were supplied with overalls. When they wore at the knees or got ripped the laundry company repaired them with iron on patches.
Naturally some of the inquisitive guys tried to remove the patches - no chance! Whatever glue they used the patch was permanently attached.

I would be happy if I could find a supply of decent tape. If anyone into clothing alterations knows of any that would be great.

 

[DAPPH]

Anyone tried cobbler's glue? It has to be strong and flexible to be any good - various options - https://www.google.com/search?tbm=s...PIAQCYAgCgAgCYAwCSBwCgBwA&sclient=products-cc

Yes ........ it's cobblers .

 

[DAPPH]

Problem is if the belt gets hot contact glue like this may let go!

The heat on a belt is momentary as the rushing air cools it very quickly .
My two pack epoxy rubberized metal epoxy was very watery and i could see it easily seeping into the belting . IIRC it's supposed to be good to 230 oC
When I next meet up with Fizzy ( I on the sick wagon at present or a few more days ) we will trial my home made 108 inch x 2 inch wide 600 grit cloth , red aluminium oxide belt I've made using a diagonal 10 mm joint feathered down on both ends on the facing sides then glued with a two pack rubberized metal dust epoxy , clamped up tight overnight ( It's in the airing cupboard right now fully curing )

 

[DAPPH]

When I worked in a food factory there was a machine for cooking omelettes. It had 2 Teflon coated fibre reinforced belts 2' wide and 20' long and they had to be joined on the machine.

The belt was overlapped by 2" with a strip of glue in between, all temporarily held together with staples. Some non stick tape was wrapped around it.

This was placed in the belt welder which was a s/s frame in 2 halves that went on either side of the belt and clamped up. On the face of each half there was a machined face with heating elements.

You positioned the weld over the elements and applied air to the welder. This inflated 2 rubber bellows to clamp the elements onto the belt.

Then you switched on the heat for a set amount of time, only a few minutes, and that melted the glue, bonding the ends of the belt together.

It was hit and miss if it welded, probably a 75% success rate. That improved after we got the machined faces skimmed as they had warped from use.

The glue looked like thin clear plastic, came on a roll and was not sticky when cold.

Not sure if it would work on sanding belts as it was for perfectly flat & thin Teflon belt.

I have three such rolls of different melting point for differing types of abrashive roll , butt jointing tape . I'm awaiting a heater foot that will slip inside my soldering iron so as soon as it get to the fusion point ( hand held accurate digital thermometer ) I can attempt a carefully placed butt join weld.

 

[Kram]

Having difficulty finding 50x530 belts, but plenty of thinner or longer ones. I am wondering if you had any success joining belts?

 

[ukracer]

PROXXON Mesh Sanding Belts TB50 50 x 533 mm (3 Piece)

Abranet Max is a tough aluminium oxide abrasive made by Mirka for the PROXXON TB 50 Table Belt Sander (SKU 109494). It has a high cut rate even on harder wood types and materials. The backing is a unique net structure that virtually eliminates clogging...

www.axminstertools.com

 

[Agroshield]

75 x 533 is also a standard size so that changes the problem to joining the two 25mm offcuts together in the opposite direction (which would seem to be much easier) in order not to be wasteful.

 

[gaz1]

so then what was your results after all this and asking

did it work or did it fail

have you tried alternatives in doing the belts or not ?

 

[Kram]

Those Proxxon mesh ones are for wood I believe, dont think they would last on metal.

75 x 533 is also a standard size so that changes the problem to joining the two 25mm offcuts together in the opposite direction (which would seem to be much easier) in order not to be wasteful.

I doubt joining would work however the offcuts could be used alone, I imagine adequate for many tasks, or even 37mm if in half.

 

[Agroshield]

I doubt joining would work however the offcuts could be used alone...

After finding the 75 x 533, it has only just occured to me to look for 100 x 533:

100 x 533 mm Aluminium Oxide Sanding Belts

100 x 533 mm Aluminium oxide resin bonded sanding belts. A tough durable product for sanding operations on wood and metals. Call us free on 0800 027 1928 or +44 (0) 1945 585500.

www.abtec4abrasives.com

They exist, but there is a lot less choice than 75mm wide.

 

[DAPPH]

Having difficulty finding 50x530 belts, but plenty of thinner or longer ones. I am wondering if you had any success joining belts?

I think I now have all bits for joining belts using differing methods . Chinese interpretation app was difficult for I asked for & eventually got just before Crimbo a plain heating platen / plate.

I did a scarfed feathered joint in a 2 mtr or so long 2 inch wide linisher belt for Fizzy using a flexible metallic ep[oxy resin ... Fizzy's machine has a 1/3 dia top platen roller that sends the belt back on itself so it might be a bit too acute for such a fabricated joint .

I don't know if he has tried it on big snazzy knife grinding linisher
When he does I'll also do a diagonal butt joint belt for it with heat fusing tape now I have the bits for the heating anvil .

 

[Kram]

As for cutting belts along their length, how? Im not sure if the cloth backed belts will rip along the length or if they will need to be cut from the cloth backing side?

 

[DAPPH]

IIRC Fizzy used a new Stanley knife blade in the correct blade holder/handle and a clamped down steel guide / ruler along the length of his 4 inch wide belt
Think he cut it on a board & cut from the cloth inside onto a plank of wood or some chipboard .

When I cut my cloth backed roll , one quick slice against a clamped straight edge and the cut clean broke apart after I removed the clamps & straight edge , as I bent the belt back away from the deep cut . A nice clean cut line and easy to feather with a my Dremel and a small abrading tip , Had to carefully scrape the abrasive off the sanding side .. again clamped 10 mm back from the cut edge with a half inch thick steel straight edge strongly clamped in place and gently scraped away the grit back to the straight edge


I also did an experiment whilst at Fizzy's unit , I cut a precise 30 degree diagonal scarfe in 2 inch wide roll of belting on his pristine 6 inch bench shear .
Had to use a couple of welding magnets to get a platen level with the cutting blade .
Lined up the cut belt on an uncut piece of belt , put a fine pencil line on the cloth side again so it would correctly glue up with the abrasive on both the same side and then cut along the pencil line .. That got a brilliant clean cut butt for jointing up to do experimental jointing tests with ( in hand , but I need more time ).

 

[Agroshield]

As for cutting belts along their length, how?

Something that looks like a woodworker's marking guage might be a suitable tool. Some have a cutting wheel instead of a point. It may be possible to turn the belt inside out so the cloth is facing out.

 

[oldbikedavey]

Might be worth asking someone like Henkel ?
Someone in their technical staff ought to know.
Sounds a bit as though a good deal of overlap area is required on the joint, probably using some thin but strong traction layer glued beneath.
Silk or Rayon might do well in that application.

 

[MetalMonkey]

Might be worth asking someone like Henkel ?
Someone in their technical staff ought to know.

I doubt it, they can't answer basic questions about loctite IME...

 

[oldbikedavey]

I doubt it, they can't answer basic questions about loctite IME...

They must know something, or they wouldn't be in the pre-eminent position that they are, one might reasonably expect ?

 

[Turbo]

I have bought some jointing tape from aliexpress, not tried it yet.

 

[Onoff]

I've only skimmed this thread but how about....

Connecting the two ends as a V joint or similar to increase the contact area of the joint. This rather than a diagonal/scarf joint.