Festool GRANAT Delta P120 Abrasive Sheets 100 x 150mm 9-Hole StickFix 100 Pack

What Is Festool GRANAT Abrasive?

Festool GRANAT is a premium coated abrasive range developed to provide effective sanding performance across a broad variety of demanding surfaces.

It is especially suitable for modern paint systems, VOC varnishes and hard substrates, where conventional abrasive materials can become clogged by accumulated sanding residue.

The GRANAT range incorporates a special coating designed to reduce abrasive loading, helping maintain cutting efficiency and extend working life.

This makes GRANAT particularly useful in professional painting, decorating, drywall finishing, cabinetmaking and joinery applications.

What Does P120 Grit Mean?

The designation P120 identifies the abrasive grain size according to the relevant coated-abrasive grit classification system.

P120 is generally considered a medium grit, suitable for controlled surface smoothing and intermediate sanding.

It is finer than coarse abrasives such as P60 or P80, but removes material more aggressively than finer grades such as P180, P240 or P320.

This makes P120 particularly useful for preparing suitable surfaces after initial rough sanding and before moving to finer finishing stages.

The correct grit sequence depends on the coating, substrate and final finish requirements.

Why Is GRANAT Suitable for VOC Varnishes?

VOC stands for Volatile Organic Compounds. The term is commonly used when describing solvents and other volatile constituents in paints and varnishes.

Modern coating systems can present demanding sanding conditions because certain finishes produce fine or cohesive residues that can load the abrasive surface.

Festool GRANAT is specifically designed for these types of coatings and incorporates a special anti-clogging treatment.

This helps reduce loading and maintain efficient sanding performance when working on suitable VOC varnishes and hard coating layers.

What Is Abrasive Clogging?

Abrasive clogging, also known as loading, occurs when removed material accumulates between the abrasive grains.

Paint residue, filler dust and other particles can cover the cutting edges, making the abrasive less effective.

As clogging increases, the sheet may begin to rub rather than cut efficiently, potentially increasing heat and reducing surface quality.

Festool GRANAT incorporates a special coating that helps minimise this buildup, supporting a longer useful abrasive life.

Effective dust extraction further helps reduce dust accumulation during sanding.

What Does DELTA/9 Mean?

The designation DELTA/9 identifies the triangular abrasive format and its nine-hole extraction arrangement.

The delta shape allows the pointed end of the sanding pad to reach internal corners and areas that are difficult to access with round or rectangular sanders.

The nine extraction holes are arranged to correspond with the matching openings in compatible Festool sanding pads.

Correct hole alignment allows sanding dust to be drawn through the pad when the sander is connected to a suitable extraction system.

For best results, use the abrasive only with an appropriately matched DELTA/9 sanding pad.

Why Is the 100 x 150mm Delta Shape Useful?

Triangular delta sanders are particularly useful for detailed sanding applications where larger machines cannot reach the entire surface.

The pointed tip can access internal corners, while the remaining sanding area provides useful contact for smoothing surrounding surfaces.

This combination is valuable when sanding door frames, window surrounds, furniture corners, cabinet components and other detailed workpieces.

The Festool 100 x 150mm delta format is designed to match the appropriate sanding pad dimensions of the DTS 400, DTSC 400 and DS 400 machines.

What Is Festool StickFix?

StickFix is Festool's hook-and-loop abrasive attachment system.

It allows sanding sheets to be attached directly to a compatible sanding pad without the need for separate mechanical clamping devices.

The abrasive is pressed onto the sanding pad, where the hook-and-loop surfaces hold it securely during normal operation.

When the sheet becomes worn or a different grit is required, it can be removed and replaced quickly.

Correct positioning is important to ensure the extraction holes remain aligned and the sanding sheet is fully supported.

Why Is Dust Extraction Important During Sanding?

Power sanding generates fine particles that can accumulate on the workpiece, the abrasive sheet and in the surrounding air.

When sanding modern coatings, fillers and mineral materials, effective extraction helps remove these particles from the work area.

The GRANAT DELTA/9 abrasive features nine openings designed to work with the extraction channels in compatible sanding pads.

When connected to a suitable Festool dust extractor, this arrangement helps maintain a cleaner sanding surface and reduces unnecessary dust accumulation.

Dust extraction must be combined with appropriate respiratory protection and workplace controls for the material being sanded.

When Should You Move to a Finer Grit?

P120 is a useful intermediate sanding grade, but many finishing applications require a progressively finer scratch pattern.

For example, a surface prepared with P120 may subsequently be sanded with P180 or P240, depending on the coating system and desired finish.

Moving to finer grits helps reduce the visible scratch pattern left by the previous sanding stage.

Always follow the paint, varnish or finishing manufacturer's recommendations, as some products require specific sanding grades to achieve correct adhesion and appearance.

Understanding the STF DELTA/9 P120 GR/100 Designation

STF: Festool StickFix hook-and-loop attachment system.

DELTA: Triangular abrasive format for compatible delta sanding machines.

/9: Nine-hole dust extraction pattern.

P120: Medium abrasive grit grade.

GR: Festool GRANAT abrasive family.

/100: Pack of 100 individual sanding sheets.

577546: Official Festool manufacturer part number.