Depending upon just how much of this sanding your crews do and how much money it would save in labor, it may be worth while to purchase a machine and experiment.

Your idea of a backer board probably would work using something like double sided tape as the medium to stick the fiberglass to the board.

I would think that you would have to be working with a very fine grit of sandpaper.

George

 

Your idea of a backer board probably would work using something like double sided tape as the medium to stick the fiberglass to the board.

I would think that you would have to be working with a very fine grit of sandpaper.

George

A backer board will work. We do it all the time when we need to sand below 1/8".

The board can have a stop on the end to keep the material on the board.

We use 3/4 MDF as a backer, primarily because it's cheap and 3/4 has very little flex. We glue a pine or poplar strip on the end. If it's thicker than the setting of the sander, it soon will be correct.:yes:

I agree. A backer board which is more like a tray that will hold multiple pieces. Fiberglass takes very little to scuff up. I've done similar sanding on a Woodmaster with multiple mouldings held on guide boards.

.

 

A backer board will work. We do it all the time when we need to sand below 1/8".

The board can have a stop on the end to keep the material on the board.

We use 3/4 MDF as a backer, primarily because it's cheap and 3/4 has very little flex. We glue a pine or poplar strip on the end. If it's thicker than the setting of the sander, it soon will be correct.:yes:

 

If this is a really common operation, you might think about going with a wide belt sander. You can pick them up at auction fairly reasonable and it is much faster than a drum sander. The belts also last longer so you don't need to change paper nearly as often.

 

To begin with fibre glass ain't wood.The Grizz response and applications of their equip. is based on wood.

The answer to your problem has very much to do with $$....duh.Seriously,is this an application of 1-10 pcs?!0-100?1k+pcs?.....Likewise,how much money is this operation going to save?Employee's?

If its a 0-10 pcs,and a once a month affair......you're doin it,might stick with what ya got.But there are ways to speed up even that.Little hillbilly engineering goes a long way on sm batches.The problems and subsequent answers change a bit when # of pcs goes up.Dust management is a HUGE area of concern when doin large batches.Which requires a much larger and broader investment.Getting a vacumn base custom made at a machine shop then becomes "affordable".And taking it one step further,hiring a consultant for development is advisable(talk to your CPA).

So do you want the:

#1 Hillbilly 0-10 fix

#2 Spend some jack,experiment.....probably will work great fix

#3 Engineer stamped,OSHA approved solution

Just sayin,BW