Making molds for custom LS-130 sanding pads...

Econoline

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Has anyone experimented with using latex, silicone or polyurethane for molding custom sanding pads for the Festy LS-130 sander? I'm getting ready to fill the grain on a bunch of oak base, it needs to be painted to match some existing base, without re-ordering a paint grade version... It's a pretty big sanding job, it'd be nice have pad that didn't distort the profile too much. I hear there is someone on the forum that is printing the plastic frames that could be attached to the sanding profiles.
E.
 
I bought one of those LS 130 profile kits, and thought for $67 I did not get much. I figured it was time for some homeshop backwards engineering.

I saw the 3D printed backing, and am thinking about making my own.  What type of foam would be best?  It seems the pink or blue stuff would not hold a profile long.  I remember a foam years ago that is the color of coke foam (if you made an ice cream coke float then froze the froth).  It seems this is a heavier foam but have no idea if that still exists. I also have no idea what to officially call it.

If anyone makes their own, I would be interested in the foam used and what type of glue can be used on the foam and any other ideas you may have. 
 
Yardbird said:
If anyone makes their own, I would be interested in the foam used and what type of glue can be used on the foam and any other ideas you may have.

I tried a few things on the pink rigid foam, and PL construction adhesive was the only thing I found that would stick. 

Spray adhesive eats the foam if you spray it directly, but I was trying to stick foam to foam- so it may work if you spray the paper, and wait for the propellant to evaporate before touching the foam to it. 
 
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