Orbital sander sanding grits

[paddythegreek]

I know this has been discussed on the forum but dammed if I can find it.
Having removed the cab decals what grit disc should I use to start and finish with prior to redecalling. Thanks Ken

 

[AlanJ]

@replicas ? 240-400??

 

[Dex-Jay]

I know this has been discussed on the forum but dammed if I can find it.
Having removed the cab decals what grit disc should I use to start and finish with prior to redecalling. Thanks Ken

Kind depends how flat it is, but 180 roughly, 320 if it's already quite good. If you can upload a picture even better. 320 is as fine as I go before primer, no point going much finer 400 at finest. If you've got chunks missing and need filling then I use 80 briefly.

Aluminium Oxide is the better paper, stays sharper longer than just sandpaper.

 

[JT.]

@replicas ? 240-400??

The lower end of that range I'd guess, with lower grit levels before that as needed - e.g. if filler is being removed.

I don't even go to 400 grit on woodwork projects where the wood is exposed. 400 is into the realm of blade (chisels mainly) sharpening for me

 

[DRD]

Buy a range and experiment. The pressure you apply and the vibration amplitude of your sander are big factors

I start with something like a 60 grit then progress to 400 for finishing off

 

[carl lawrence]

I use the orbital to 240 grit then the rest by hand 400 , 600 , 800 then finished off with 1200 grit , it’s a little bit OTT but you do get a nice smooth surface . It becomes so flat you can actually get a reflection off it , so I know the decal will stick down properly , but that’s just me !!

 

[replicas]

I usually start with 100-120 then work up to 240. A used 240 is close to a 360 so no need to go any higher than 240's.
Meaning you only need to buy two grades to do a cabinet.

 

[Epotech]

320 then 600, then filler primer and sand back again using 800. Its all in the preparation!