ASK THE EXPERT: Can you polish with an angle grinder?

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hello there I'm Paul from ask the expert

we have a really good question here

today and this is can you polish with an

angle grinder okay so a tool like this

normally reserved for quite aggressive

and uh big stock removal applications

well actually yes you can polish with an

angled grinder and here's something I

did earlier using this nice product here

from Norton which is our rapid prep

polish uh used in combination with this

compound here but

before you actually can use a product

such as this there are some steps prior

that you need to do to your your

component before you can use it to his

most effective nature and that is first

of all on a component like this we need

to take off the Weld and all the damage

and scratches on the on the front

surface here and to do that you can

either use a flap or Fiber disc such as

this item here and this one I'm going to

use a grit 80 because if I use a grit 80

yes it will take me a little bit more

time to take the world off but the

scratches I leave behind will not be so

deep so I spend less time later on

trying to remove them scratches so yeah

you could do with the P40 but you will

see the scratches once you start to

polish if you do that so p80 p120 is

better for the first step once you've

removed the weld with that product we

then need to blend the surface in to get

it nice and flat and to do that we can

recommend our Norton Vortex rapid blend

this is reasonably aggressive but still

these are really really nice finish on

the surface of the metal and we'll take

out all of the scratches left from the

flat disc used in stepper step one

really nice product this and then to

blend away and get us to a sub polish

finished we need to look at our rapid

blend 2 SF much softer silicon carbide

abrasive to give you a bright finish and

a fine grade this will take you directly

to a sub polished finish that could be

good enough for most of you out there

but if you really as this question is

asking if you really need to take it to

a Polish you need to employ as a fourth

step our rapid polish disc essentially

the same as a flap disc but instead of

abrasive flaps on the surface we

actually have a pure felt flaps and once

you load these flaps up with the

compound here this is what will give you

your bright shiny polished mirror finish

on this honest material really easily

always be aware there is a difference in

the maximum operating speed of a disc

like this this one is 7700 RPM so ensure

when you do use this disk you use it on

a variable speed grinder just to be

extra safe okay I hope that answers your

question any comments put them in the

chat below we'll see you later