No offense, but it is never a good idea to dry sand anything that has even the slightest possibly of containing asbestos, that's how it becomes airborne and gets into your lungs. Always keep anything you suspect that may potentially contain asbestos wet so it doesn't become airborne...hence using a wallpaper steamer and a putty knife to remove the mastic...and then do a light damp sand, wiping down as you go, to make sure you have removed every bit of it before letting it completely dry (a good 2 weeks, or more if it's humid) and then begin your refinishing sanding.

Source: https://inspectapedia.com/hazmat/Asbestos_Wetting_Procedure.php

Edit: added source