There are many great tips online for cleaning foam pads, but it usually involves throwing them in the washing machine with your other soiled microfiber towels.
If you don't have a bunch of other things to clean, since it's just one pad, we don’t really recommend doing this.
I would suggest simply using some soap and hot water to hand rinse them and leave out to air dry, then placing them in the plastic bag to re-use the next time.
Couple more important tips are to make sure you don't use any other products on this pad, besides our Plastic Restorer.
Water in the pad will definitely have a negative impact when using our Plastic Restorer so make sure it's 100% dry before using it again.