Sia 5 in Firm Interface Pad, NH Hook and Loop

Description

This sia interface pad mounts between a 5 in NH hook and loop backup pad and the sanding disc itself, adding a thin cushioning layer that changes how the disc contacts the work. At 1/8 in thick and rated firm, it takes up the gap between a rigid backup pad and an uneven or contoured surface, letting the disc flex slightly instead of transmitting every ripple in the panel straight into the operator’s hand.

Where This Sia Interface Pad Fits

Body shops and cabinet finishers reach for a firm interface pad when a random orbital or in-line sander needs to hold flatness on body panels, countertops, and cabinet doors while still absorbing the small movements that come from hand pressure. The firm rating keeps the disc tracking true on flat or gently curved panels, unlike a soft pad that would allow the disc edge to dig in on a crown or feature line. Shops running mixed grits on the same backup pad also use the interface pad as a buffer that reduces swirl marks from uneven hand pressure.

How This Sia Interface Pad Holds Up

Built from a closed cell foam core with an NH (no hole) hook face on one side and a loop face on the other, the pad seats directly onto the sander’s existing backup pad without changing the arbor or thread. Because it carries no vacuum holes, it works on both hole and non-hole abrasive discs, giving a shop flexibility to run whatever paper is in stock. Replace the pad once the foam compresses unevenly or the hook face stops gripping discs securely, since a worn interface pad transmits vibration the same way a missing one would.

Order this pad as a running spare for any 5 in random orbital or in-line sander, or size up to the 6 in version for larger backup pads. Browse Chemical Concepts abrasives and sanding accessories for matching backup pads and discs, or see the full sia Abrasives line at sia Abrasives.

Need Help?

Need help matching interface pad density to your backup pad and panel type? Call (800) 220-1966 or email [email protected].