Alex said:
In America there are no sandpapers from other manufacturers available
Not quite... Abranet is available in the US and fits Festool 5" and 6" sanders.
Neill said:
I have had excellent results with Mirka Abranet. It is a mesh screen. "Look Ma, no holes". Big advantage here is that if you are working through a series of abrasives the disk changes are very quick because you do not have to be concerned about aligning the holes.
You may want to use their interface pads to protect you Festool sanding pad, but it is not necessary. They also offer their own sanding pads that are compatible with Festool sanders.
And yes, Festool abrasives are excellent. You cannot go too far wrong by "sticking" with them.
Neill
Like Neill, I've used Mirka Abranet on my RO150 with excellent results. I especially like their little dustless hand sander, whose hose is very light and flexible, and whose hose adapter fits the Festool hose inlet perfectly:
http://www.woodcraft.com/Product/2005922/28629/Abranet-2-34-X-5-Grip-Faced-Vacuum-Block.aspx . That said, I prefer using Festool sandpaper because it's great sandpaper and for the most part, the same sandpaper is made in sizes to fit my RO150, RO90, and RS400/LS130.
Regards,
Dan.