Diamond Polishing Discs

Diamond resin polishing discs are a flexible pad for polishing all natural stones, but also ceramic, concrete and engineered stones. They are long lasting and fast working.

Maximum speed for our 100mm and 125mm diamond polishing pads is 4500 RPM (recommended speed 2500 - 4500RPM), which is a lot less than most standard angle grinders (they can be up to 11,000 RPM). The best control is achieved when using a specific polisher, but a variable speed angle grinder (usually 3000 to 11000 RPM), which cost around $300, can be good too. Some customers have had success with orbital sanders with variable speed.
We can not be responsible for any quality issues if you use high speeds with any of our pads (because they will wear out very fast when used at high speed).

Always work flat, with a little pressure. Too much pressure can shorten the disc's working life.

Dry Polishing discs:

Designed to be used dry, which in most situations is a lot easier as water makes a messy slurry that can be difficult to clean up.  They can be used with a tiny amount of water, although this will shorten the life of the pad. 
These velcro backed polishing pads simply stick to the velcro backing pad (available seperately, below)  that attaches to your polisher.

Note - Worksafe WA specify "Uncontrolled dry cutting (ie dry cutting without on-tool dust extraction) is non-compliant and WorkSafe inspectors will take enforcement action where this practice is identified." See more here

125mm Premium Honeycomb polishing discs

The Premium Honeycomb polishing pads are made in Korea and are a great polishing pad.
Will not leave colour on the surface, and last considerably longer than other pads (when used at correct speed).
With its ability to deflect heat, it's amazing flexibility,  long life and top quality finish, these Honeycomb Diamond Polishing Pads are the best dry polishing pad on the market.

  • Designed for Flexibility
  • Honeycomb pattern
  • Great life expectancy
  • Exceptional polishing
  • Ideal for edging
  • Large channels for dust evacuation
  • Dry use only
  • Made in Korea

Ideal for:

  • Concrete
  • Hard marble
  • Granite
  • Natural stone
  • Engineered or manufactured stone
  • Travertine etc


  • Grit: #50, #100, #200, #400, #800, #1500 & #3000
  • Diameter:  5"/125mm
  • Pattern Type: Diamond Honeycomb Resin
  • Suits most 125mm velcro backing pads

All $25 each incl GST

pad-100-grit.png grind-pad.jpg

pad-f-and-b.png pad-range.jpg

125mm KGS Swiflex XX Discs

These pads are designed for use on hand held machinery, and are suitable for edge and surfacing grinding, as well as chamfering.
These pads are for use on natural stones like marble and granite etc, as well as engineered stone, ceramic, concrete and glass.  
They can bring out a high gloss finish without discolouring  - even white marble will stay white.
They are designed for dry use, but can be used with a little water, although this may shorten the pads life.

  • Grit: #60, #120, #200, #400, #800, #1500 & #3000
  • Diameter:  5"/125mm
  • Suits most 125mm velcro backing pads
  • Made by KGS with Swiss Diamond Technology


Suggested usage info:
Marble - Use (#60), #120, #200, #400, #800, #1500, #3000 grits
Granite - Use #60, #120, #200, #400, #800, (#1500) grits

All $23 each incl GST

See these pads in action below (demonstrated on marble).

Wet Polishing Discs:

100mm "MM2A" discs for wet polishing concrete, marble, hard stone and ceramic:

KGS Speedline® MM-2A for efficient and fast polishing wet polishing.
Resin bond diamond polishing discs, with velcro backs.
Made by KGS with Swiss Diamond Technology

Step 1 - Green,   No.1 : Very coarse - Stock removal
Step 2 - Red,  No.2 : Coarse - Grinding, very high efficiency
Step 3 - White, No.3 : Medium - Smooth surface
Step 4 - Blue,  No.4: Fine - Produce a clear reflective shine
Step 5 - Orange, No.5: Very fine - Creates a good gloss

Maximum speed - 8700RPM (recommended speed 2500 - 4500RPM)

$16 each incl GST


See the MM2A in action on marble below:

100mm "Pronto" for wet polishing granite and engineered stone (not concrete):

KGS Speedline® Pronto discs offer an excellent ratio of price to service life and performance.
They are perfect for wet polishing with hand held machines of different materials like granite and engineered stone.
Universal fitting with a velcro back, they offer smooth grinding yet aggressive high polishing results.
Quick stock removal.
Grits: #60, #100, #200, #400, #800, #1500 & #3000
Excellent price performance ratio.
Made by KGS with Swiss Diamond Technology

Maximum speed - 8700RPM (recommended speed 2500 - 4500RPM)

$23 each incl GST



Backing pads:
5"/125mm Backing pads with velcro, M14:

tyrolit-m14-backing-pad.png magic-pads.png
Aluminium (rigid) $50 incl GST ea Magic Pad (flexible), M14 $70 incl GST ea

Korean Premium bakelite back pads - $45 incl GST each (not shown)
4"/100mm back pads -  $35 incl GST each (not shown)

125mm Cushion pads/backing sponge:
Velcro Male and female
Turns a rigid back pad into a more flexible pad when sanding uneven surfaces.
4mm thick, 125mm/5"
$40 each incl GST


Polishers - see our polishing machines here

Prices correct as of 1/10/21 but subject to change.

Please see our Contact Us page for Australia wide delivery information.

What is honed concrete?
Honed concrete is like exposed aggregate (where the aggregate, or rock, in the concrete are exposed, but the surface has been ground to a smoother matt finish. It is not as polished as polished concrete (see next).
After laying, the concrete needs to set for some time - a general rule is the concrete should be cured for 28 days before you start
. Once set, you will need to grind of the top layer of concrete to expose the decorative stone aggregates within the mix.
Use our diamond resin polishing pads to achieve the finish the you want.

What is polished concrete?
Polished concrete is a good looking and durable finish that is obtained by polishing a concrete surface with our diamond resin polishing pads until a glossy surface is achieved.

Polished concrete is made by grinding and polishing your concrete until it reaches the desired look.
Next, a process known as hardening occurs, where the use of a hardener penetrates the concrete, creating a chemical reaction to help harden and dust proof the surface.
During concrete polishing, the surface is processed through a series of steps (in general a minimum of 6 grinding steps are completed for it to be considered polished concrete) utilising progressively finer diamond resin polishing pads.

What is "Grind and seal" concrete?
This is where the concrete substrate is ground back (usually to #200 – #400 grit) and then coated with either a polyurethane or epoxy topical coating to give the look of polished concrete without the labour intensive grinding and polishing.

Notes on polishing concrete counter tops:

Grinding and polishing results will vary according to the material, machine and operator.
Not all concrete has the strength to produce a high sheen exposed aggregate finish.

If dry polishing, protect yourself from silica dust with a vacuum. Remove the dust regularly, otherwise it can scratch the surface.
If wet polishing, make sure you are protected from electrocution with a RCD. The water will remove the dust, so scratching is less likely.

The more aggressive, coarser grits work best at exposing aggregates and removing blemishes. 
The finer grits are for final polishing. Progress to higher grit levels until you achieve the desired surface sheen and smoothness.

If you are polish only, you will get a smooth, matt surface (honed).
To get a high gloss finish, a densifier or polished concrete clear sealer from Crommelin Chemicals, Sika (both available at Bunnings for under $80 for 4 litres) or Parchem is required.
 The densifier will harden the surface, increase abrasion and water resistance and reduce dusting. 
The polished concrete clear sealer protects concrete surfaces from staining, dirt and water damage, and leaves a clear, wet look. It is ideal in high traffic areas, indoors and out.
See manufacturer's instructions online.

Decide on the finish you want:
Uniform Finish – The concrete is a uniform colour because there is still a thin layer of cement over the surface.
Light Polish – The thin layer of cement is removed, so a fine sand aggregate is exposed. 
Ground Finish – As you polish deeper into the concrete, you begin to expose the larger aggregate (stones) that is in the concrete mix.

Clean the fully cured (minimum 10 days) concrete countertop to remove any grit that could gouge the concrete as you grind.
Patch any minor flaws or holes with a patching slurry prior to polishing. Mix up the slurry using a combination of cement, fine sand, water, and pigment.
Remove any dags or high points with one of our diamond turbo cup wheels, with water.
Start by polishing with the coarsest pad (#50 grit), depending on the desired finish. Go over the entire surface. Use the polisher in a circular motion (in the direction that it spins) from left to right or top to bottom going halfway over the area you have already done.
Hold the polisher as flat as possible on the surface and apply even, light pressure to prevent swirl marks.
Slower speed is usually better than high speed, but you may need to experiment to see what works best with your tools/pads/job/experience.
Use hand pads of same grit to polish areas the polisher can't reach. See our range here.

Change to a #100 grit pad and polish the entire surface again. Repeat this process, working progressively through all the grits till the desired shine is achieved. The level of gloss is determined by the stage at which you cease polishing in the concrete polishing process. Full high gloss is achieved with #800, #1500 and #3000 pads.
Clean, then let the surface dry. If applying sealer, follow the manufacturers instructions. Some sealers require the surface to be polished only to #800 grit so that it can bond to the surface, so don't over polish.

Disclaimer: the information on this website is provided in good faith and believed to be reliable and accurate at this time. However, the information is provided on the basis that the reader will be solely responsible for assessing the information and its veracity and usefulness. UDT shall in no way be liable, in negligence or howsoever, for any loss sustained or incurred by anyone relying on the information, even if such information is or turns out to be wrong, incomplete, out-of-date or misleading.



United Diamond Tools

U9, 84 Barberry Way
Bibra Lake
Western Australia 6163

Telephone: (08) 9434 6878
Mobile: 0419 901 533

Email:  sales@udt.com.au