Festool 496140 Planex Interface Pad is a foam interface pad set for the Festool PLANEX drywall sanding system. This is an interface sander backing pad designed for contour sanding and surface preparation on irregular shapes. Model Number: 496140. If you are trying to smooth curved transitions, rounded corners, or delicate profiles without leaving hard edge marks, this is the accessory that makes the PLANEX sanding head more forgiving.

The main job of this pad is simple: it sits between the sanding disc and the sanding pad and adds controlled cushioning. That extra give lets the abrasive float a bit instead of cutting too aggressively into high spots. In real use, that means smoother results on uneven surfaces and less risk of scuffing or flattening areas that are supposed to stay soft and rounded.

Festool builds this accessory around the 225 mm PLANEX format, with an 8-1/2 inch diameter and 5 mm thickness per pad. Because the set includes two pads, you can run one pad when you want a lighter buffer or stack both when the surface needs more compliance. That is useful when moving from broad drywall sanding into more detailed finish work where you want the tool to follow the surface instead of fighting it.

The hook-and-loop attachment keeps setup straightforward, and the eight-hole pattern supports dust extraction through the sanding head. On a long-reach drywall sander, dust control matters just as much as cut quality, so keeping the pad layout matched to the sanding system helps maintain the vacuum performance the PLANEX is known for.

This accessory is specifically intended for use with sanding pad 496106 and for the PLANEX 225 EQ long-reach sander. Just as important, Festool is clear about what it does not fit: it is not suitable for PLANEX LHS 2 225 EQ(I) from September 2020, not suitable for PLANEX LHS-E 225 EQ, and not suitable for PLANEX LHS 2-M 225 EQ. If you are ordering for a newer PLANEX platform, check your exact machine before adding it to the cart.

Who should buy it? Drywall finishers, remodelers, painters doing wall prep, and anyone already running the older PLANEX 225 EQ who needs cleaner results on curved or uneven areas. It is not a must-have for every sanding job, but when the surface is irregular and the finish standard is high, this is the right accessory to keep the sander from being too rigid.

Festool 496140 Planex Interface Pad for Cleaner Drywall Finish Work

This is the kind of small accessory that earns its keep fast when your PLANEX is a little too aggressive on curves, patches, and blended edges.

• Who it's for: Drywall finishers, remodelers, and painters using the older PLANEX 225 EQ who need smoother sanding on irregular surfaces.
• Why it stands out: The 5 mm foam construction adds controlled flex, and the two-pad pack gives you the option to run one or stack both depending on how delicate the surface is.
• Worth knowing: Fit matters here. This is not a universal PLANEX accessory, so double-check your machine model before ordering.

• What does this interface pad do? It works as a damping element between the sanding disc and sanding pad so the sander can better follow rounded corners, contours, and other irregular surfaces.
• What size is it? The pad is 8-1/2 inches (225 mm) in diameter and 7/32 inch (5 mm) thick.
• Can the pads be stacked? Yes. The two 5 mm pads can be used separately or stacked together.
• Will it fit all Festool PLANEX sanders? No. It is suitable for the PLANEX 225 EQ long-reach sander and is not suitable for PLANEX LHS 2 225 EQ(I) from September 2020, PLANEX LHS-E 225 EQ, or PLANEX LHS 2-M 225 EQ.