Your favorite sanding sponge or profile sanding technique?

[®smpr_fi_mac®]

I need a better method to sand round overs on plywood than with folded-over paper.

I'm thinking sanding sponges. If so, which one?

If not, then what?

[handi]

I need a better method to sand round overs on plywood than with folded-over paper.

I'm thinking sanding sponges.  If so, which one?

If not, then what?

Flap sander or mop sander. 
I put one in my drill press, run it at 1800 or so and it cleans up parts rapidly.

[EdL]

Lee Valley makes rubber profiles that you wrap sandpaper around. Very good assortment, use mine on almost every project.

Ed

[fall]

Lee Valley makes rubber profiles that you wrap sandpaper around. Very good assortment, use mine on almost every project.

Ed

Plus #1 on the profiles, there are multuple companies that sell them cheap. They will last forever.

[MichaelMouse]

I need a better method to sand round overs on plywood than with folded-over paper.

I'm thinking sanding sponges.  If so, which one?

If not, then what?

Oldest answer is a reverse profile to hold your cloth-backed paper.  As indicated, such are available as commercial products, or from your router and pine scraps. 

Sponges and mops are best for three-dimensional works like carvings and complex moldings, though I generally just burnish the latter with its own variety of shaving.

[jteneyck]

On simple radii I still use sandpaper but put a piece of foam behind it to help it follow the contour smoothly.  On complex profiles I use abrasive foam pads.  Flap sanders would be a good approach if you have to do a lot of linear feet.  I have a shaft drive flap sander for doing moldings up to 8" wide.  I think I've used it twice.  I just haven't made as much molding as I thought I would when I bought it.  Anyone need a W&H molder with about $3K worth of knives and a flap sander?  

John

[Stwood_]

Harbor Freight sanding sponges. Made in Korea. Pack of ten for a few bucks.
Fine, medium, and coarse.

[®smpr_fi_mac®]

Thanks, folks! I'll check these out.

[KLaz]

For cove profiles for example, I'll take a small piece of the 2" rigid insulation board you can get at the box stores, adhere a piece of sandpaper to the profile of the workpiece itself, run the insulation board back and forth on it till I form the form the profile on that insulation board.  Boom, you now have an exact replica sanding block.  Adhere a piece of sandpaper to your newly created sanding block and there you go!  Only takes a minute or two.

[KC]

For cove profiles for example, I'll take a small piece of the 2" rigid insulation board you can get at the box stores, adhere a piece of sandpaper to the profile of the workpiece itself, run the insulation board back and forth on it till I form the form the profile on that insulation board.  Boom, you now have an exact replica sanding block.  Adhere a piece of sandpaper to your newly created sanding block and there you go!  Only takes a minute or two.

That's brilliant.