How Does poly strip disc wheel Work?

Author: Monica

Jul. 21, 2025

6 0 0

Tags: Hardware

Poly strip discs | MIG Welding Forum

Domdom

Member

Messages: 1,512

Location: Barranda, Spain.

Jun 22,

HI All,
Does anyone know what all the different colours represent on those poly strip discs please? Struggling to find information on them. It's the roloc ones for a pistol grinder.
Thanks
Dom

tigdlo

Member

Messages: 1,104

Location: UK

Jun 22,

Manufacturers choice to show a different grade, 3m uses purple for XT discs, whatever XT means and Norton use orange for their Blaze discs which are a ceramic type, I like these in 5" to use at about rpm, they do more work per disc keeping them cooler.

If any other manufactur uses purple or orange it doesn't mean a thing, there is no universal standard.

Barking Mat

Cuddler of hedgehogs.

Messages: 13,460

Location: France, Brittany.

Jun 22,

I've never used them are they any good, how do they compare to a flap disk ?

Price, roughly ?

MattF

Forum Supporter

Messages: 17,630

Location: South Yorkshire

Jun 22,

It's the roloc ones for a pistol grinder.

Deviating. What size discs & what pistol grinder do you have? Simple curiosity.

awemawson

Forum Supporter

Messages: 4,803

Location: East Sussex, UK

Jun 22,

I've never used them are they any good, how do they compare to a flap disk ?

Price, roughly ?

Excellent for stripping paint as they tend to leave the underlying steel largely untouched. Downside, I always seem to (painfully) go through my gloves to skin all too easily.

Domdom

Member

Messages: 1,512

Location: Barranda, Spain.

Jun 22,

Deviating. What size discs & what pistol grinder do you have? Simple curiosity.

2 inch and 3 inch Roloc. The pistol grinder is a sub 30 quid eBay job that did way more than I ever expected of it.

Duran Tools 50mm 75mm Air Operated Angle Sander Pistol Roloc Compatable | eBay UK

Compatible with Roloc system. Easy to use, Lightweight & Great value for money. Debit / Credit Cards.

Domdom

Member

Messages: 1,512

Location: Barranda, Spain.

Jun 22,

I've never used them are they any good, how do they compare to a flap disk ?

Price, roughly ?

Good at rust removal and not damaging the metal.

Stupoty

Member

Messages: 765

Location: London

Jun 22,

I've never used them are they any good, how do they compare to a flap disk ?

Price, roughly ?

I was amazed , they pulled off the under seal on my car like it was nothing.

And as awamason said they only polish the metal virtually zero material removal.

If you catch an edge of sheet metle you can wear them overly quickly and if you press to hard / too long on one spot you can melt them.

Stu

Barking Mat

Cuddler of hedgehogs.

Messages: 13,460

Location: France, Brittany.

Jun 22,

Ok, I must try them.

Are they expensive ? Compared to flap disks ?

MattF

Forum Supporter

Messages: 17,630

Location: South Yorkshire

Jun 22,

2 inch and 3 inch Roloc. The pistol grinder is a sub 30 quid eBay job that did way more than I ever expected of it.

Duran Tools 50mm 75mm Air Operated Angle Sander Pistol Roloc Compatable | eBay UK
Compatible with Roloc system. Easy to use, Lightweight & Great value for money. Debit / Credit Cards.

So in use, are they pretty much along the lines of a small, more readily controllable sanding/grinding tool? Comfortable to use?

Reason I'm asking is that I recently noted Bosch have brought out a 12V version of that type of tool, but can't decide whether it may be a useful addition to my tool collection, or whether it's just a gimmicky type thing I'll never need/use. This is the one:

GWG 12V-50 S Rotary Grinder | Bosch Professional

GWG 12V-50 S 12V system | Powerful, high-performance brushless motor and high torque enable high productivity, Extremely lightweight and compact design with small grip size for fatigue-free working, Variable-speed trigger switch and different speed modes enable perfect control for various tasks...

Domdom

Member

Messages: 1,512

Location: Barranda, Spain.

Jun 22,

So in use, are they pretty much along the lines of a small, more readily controllable sanding/grinding tool? Comfortable to use?

Reason I'm asking is that I recently noted Bosch have brought out a 12V version of that type of tool, but can't decide whether it may be a useful addition to my tool collection, or whether it's just a gimmicky type thing I'll never need/use. This is the one:

GWG 12V-50 S Rotary Grinder | Bosch Professional
GWG 12V-50 S 12V system | Powerful, high-performance brushless motor and high torque enable high productivity, Extremely lightweight and compact design with small grip size for fatigue-free working, Variable-speed trigger switch and different speed modes enable perfect control for various tasks...

Honestly, I use it way more than I expected to. Restoring this Sierra has meant many inaccessible places for a 4+1/2” electric grinder. I’ve got through at least a dozen boxes of 40 grit discs just dressing back welds. It’s slower progress than an electric grinder but it does a much more tidy job. And the disc change on the Roloc system is a breeze, like 10 seconds to change the disc.

Then there’s the sheer variety of discs available in Roloc. Look on the bay and you’ll see what I mean.

Gimmick? Hell no. Godsend is more the word.

AdventuresInMetal

Member

Messages: 221

Location: North West, England

Jun 22,

I use Roloc just as much as i do an angle grinder, I would never be without it at this point, infact at some point this year i'm considering getting another M12 right angle die grinder just so i never have to remove my roloc when i want to use a burr or cutting disc in it!

MattF

Forum Supporter

Messages: 17,630

Location: South Yorkshire

Jun 22,

Gimmick? Hell no. Godsend is more the word.

I'd only just talked myself out of it too. That resolve's gone right down the crapper now.

Shedendman

Member

Messages: 5,461

Jun 22,

I use Roloc just as much as i do an angle grinder, I would never be without it at this point, infact at some point this year i'm considering getting another M12 right angle die grinder just so i never have to remove my roloc when i want to use a burr or cutting disc in it!

I just got one,Milwaukee M12,why the hell i didnt i ages ago cracking little tool

Parm

Respect The Sound System

Messages: 18,006

Location: Towcester

Jun 22,

So in use, are they pretty much along the lines of a small, more readily controllable sanding/grinding tool? Comfortable to use?

Reason I'm asking is that I recently noted Bosch have brought out a 12V version of that type of tool, but can't decide whether it may be a useful addition to my tool collection, or whether it's just a gimmicky type thing I'll never need/use. This is the one:

GWG 12V-50 S Rotary Grinder | Bosch Professional
GWG 12V-50 S 12V system | Powerful, high-performance brushless motor and high torque enable high productivity, Extremely lightweight and compact design with small grip size for fatigue-free working, Variable-speed trigger switch and different speed modes enable perfect control for various tasks...

Buy it

Olderisbetter

Member

Messages: 3,918

Location: Wolverhampton

Jun 22,

I used some expensive ones but made the mistake of buying 5 for£18 off ebay.. total carp

MattF

Forum Supporter

Messages: 17,630

Location: South Yorkshire

Stupoty

Member

Messages: 765

Location: London

Jun 23,

I used some expensive ones but made the mistake of buying 5 for£18 off ebay.. total carp

I've had ok results with the cheep one so far. Might just be luck though.

What do you find better with the branded ones ?

Stu

sardine

Member

Messages: 3,723

Location: Buckinghamshire

Jun 23,

I use the Norton wood strip disk for cleaning up metal stuff, especially aluminium, they don't leave a mark on the base metal.

The trick is to keep cutting back the backing until you use the entire abrasive part because they are 10 quid a pop.

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Additional reading:
Malleable fittings Selection Guide - Jianzhi Pipe Fittings

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