4 1/2" angle grinder, 6 inch pad

Anyone know if running a 6" flexipad, on a 41/2" angle grinder will work well, or we think it will just burn out the motor fast. Unrelated but could not figure out my old email, had to make a new account (too many poly fumes I guess). Thanks for the advice. 

Angle grinders are 11,000 rpm or more.

 

The powerpads are rated at what 3500 rpm?

 

Do you have a router speed controller?  I use one a lot with my angle grinders when foiling fins with flap sanders, or my belt sander, or my box fans, crock pot,  or even my router.

 

This is the one I use:

https://www.amazon.com/MLCS-9400-Standard-Router-Control/dp/B001JHQ3G8

Probably not very good for the motors though, but none seem worse for wear because of it.

 

Thanks for the variable speed reminder. Completely forgot the one I have is basic on off switch. Guess ill have to keep looking around cragislist for a variable speed or pull the trigger on that sander. 

The Harbor Freight 7" variable speed sander/polisher is 30$US with the coupon and comes with a hard backer pad and some sanding disks. That’s cheaper than messing up a board or a good pad.

Wear eye protection and maybe a kevlar vest.

The RPMs on a grinder like that will destroy your pad.  You’ll be picking up little pieces of foam all over your shop.  Do as someone suggested; buy the Harbor Freight sander/polisher for $30 with the coupon.