Abrasives for plaster walls

[Yeti fan 19]

Just need some advice on what is the best 150 size abrasive to use on plastered Walls. I have the ets 3 sander and have got to sand down a load of old Walls after I ve filled them . Been on the festool website but there's no definitive answer on the right abrasive. I'm thinking maybe saphir or crystal? Cheers.

 

[AlexThePalex]

Most certainly none of the above. Crystal and Saphir are way too sharp to get a good result. They are meant for the toughest of jobs. Plaster, on the other hand, is a very soft material. You want a more gentle abrasive to handle that.

I have found Granat works best on plaster walls, mainly because it doesn't clog as fast as other types of abrasives. I never go lower than grit 80 on the roughest of patches, but mostly use 120. If you can't get Granat, Brilliant also does fine but it will clog quite a bit faster so you'll use up more sheets.

 

[Yeti fan 19]

Nice one for that Alex. Have never sanded Walls before so that advice is much appreciated

 

[leakyroof]

Agree with Alex, Brillant 2 was my go-to abrasive for plaster repairs until Granat came along.