This sander Im looking for a good sander when doing high gloss doors. Im using 2k urethane primer and base coat/clear coat (automotive finish) Im really looking for a sander that can 1. sand the primer prior to applying the base coat using 400 grit ( the primer Im using turns to powder and sands very easy) but does tend to clog cheaper paper cubitron seems to perform the best. 2. wet sand the clear to knock out any orange peel. In the past I have used a RO sander to wet sand and it seems like the RO scratches are much more difficult to polish out. I recently re cleared one of my cars and noticed even when using the RO with 3000 grit I had to work much harder to polish out the RO marks than if I wet sanded by hand. I had an easier to polish and better finish even wet sanding by hand at 2000 I ended up doing it in to stages first I would use the 5" RO to level everything out then come back and go back over everything by hand and then polish with foam pad on DA style polisher.
THe primer doesnt need a ton of sanding but since it is so dusty I really want good dust collection and dont really want to be sanding by hand with a sanding block A. because of the mess and B. because of the papers clogging faster with out any DC. I know they have the sanding block that attaches to a DE but Im not sure how much I will like "hand sanding" with a hose attached. I am one of the odd balls that doesnt mind sanding but the thought of doing it while dragging a hose around is another thing. I dislike a hose on power sander enough. I did order one to try but it hasnt arrived to test out yet. However, Im not holding out much hope for liking it.
Im liking the larger flat surface area of the 3m sander for keeping everything flat, less chance of burning through at the edges and the less aggressive nature of the orbital vs the RO but still concerned with orbital type scratches. However, Eastwood sells a dedicated wet sander which is an orbital type sander and has good reviews so on the other hand Im thinking this 3m sander should also work well. The 3m sander doesnt say it can or cant be used for wet sanding but I will be using smaller amounts of water unlike wet sanding a car since its mostly MDF doors I wont be flooding the panels with water just light mists with a sprayer a little at a time so Im not worried about the sander more so just the finish quality and ease to polish the panel out.
THe primer doesnt need a ton of sanding but since it is so dusty I really want good dust collection and dont really want to be sanding by hand with a sanding block A. because of the mess and B. because of the papers clogging faster with out any DC. I know they have the sanding block that attaches to a DE but Im not sure how much I will like "hand sanding" with a hose attached. I am one of the odd balls that doesnt mind sanding but the thought of doing it while dragging a hose around is another thing. I dislike a hose on power sander enough. I did order one to try but it hasnt arrived to test out yet. However, Im not holding out much hope for liking it.
Im liking the larger flat surface area of the 3m sander for keeping everything flat, less chance of burning through at the edges and the less aggressive nature of the orbital vs the RO but still concerned with orbital type scratches. However, Eastwood sells a dedicated wet sander which is an orbital type sander and has good reviews so on the other hand Im thinking this 3m sander should also work well. The 3m sander doesnt say it can or cant be used for wet sanding but I will be using smaller amounts of water unlike wet sanding a car since its mostly MDF doors I wont be flooding the panels with water just light mists with a sprayer a little at a time so Im not worried about the sander more so just the finish quality and ease to polish the panel out.
I should be able to return it to Amazon if it doesnt work out but I hate doing that and just trying to do as much due diligence before hand. 
