Festool Granat Net Abrasive Mesh Disc 150mm P320 Fine Grit for Random Orbital Sanders 50 Pack

What Makes GRANAT NET Different from Conventional Sandpaper?

Conventional perforated sanding discs generally extract sanding dust through a fixed arrangement of holes. Festool GRANAT NET uses an open abrasive mesh that allows dust to pass through virtually the entire sanding surface.

This is especially valuable when sanding repair compounds, fillers, paints and varnishes that produce fine particles capable of quickly clogging ordinary abrasives.

By allowing dust to be extracted through the mesh, GRANAT NET helps maintain abrasive cutting performance, reduces unnecessary clogging and extends the effective working life of the disc.

The resistant mesh structure also provides high tear resistance and excellent edge stability, helping achieve consistent results with fewer unwanted scratches or additional finishing operations.

What Does P320 Grit Mean?

P320 identifies the abrasive grain size according to the recognised P-grade classification system. It is a fine abrasive grade designed for controlled surface refinement rather than aggressive material removal.

P320 uses finer abrasive particles than P150, P180 or P240, allowing it to reduce minor sanding marks and produce a more refined surface finish.

This makes it particularly suitable for the later stages of sanding, including preparation of suitable primed, painted or varnished surfaces before subsequent coating operations.

The ideal grit depends on the coating system, substrate condition and finish required. Always follow the coating manufacturer's sanding recommendations.

Choosing Between P180, P240, P320 and P400

P180: A finer preparation grade suitable for smoothing previously levelled surfaces and reducing marks from coarser abrasives.

P240: A fine sanding grade useful for surface refinement and preparing suitable coatings for further finishing.

P320: A fine finishing grade providing controlled sanding for reducing minor scratches and refining surfaces before subsequent coating applications.

P400: A finer grade suitable for more delicate sanding applications where a finer scratch pattern is required.

The appropriate grit progression depends on the material, coating system and final surface quality required. Not every finishing process requires every intermediate grit.

Why Is Full-Surface Dust Extraction Important?

Fine sanding of fillers, repair compounds, primers and coatings often produces very small dust particles that can accumulate between abrasive grains.

When excessive residue remains on the abrasive, it can interfere with cutting performance, contribute to premature clogging and affect the consistency of the finish.

GRANAT NET addresses this challenge with an open-mesh structure that allows efficient dust extraction across the abrasive surface. This helps maintain a cleaner sanding interface, reduces clogging and supports longer abrasive service life.

Effective extraction also helps reduce airborne dust and improves visibility of the surface being prepared when the abrasive is used with suitable equipment.

Why Use a Protection Pad with Abrasive Mesh?

Mesh abrasives have an open structure that differs from conventional paper-backed sanding discs. During extended use, direct contact between the abrasive mesh and the machine's sanding pad can contribute to wear of the attachment surface.

A suitable Festool protection pad is positioned between the machine's sanding pad and the GRANAT NET abrasive disc. It provides an additional protective layer while maintaining compatibility with the abrasive attachment system.

Using the correct protection pad can help extend the life of the machine's sanding pad, maintain reliable abrasive attachment and reduce replacement costs over time.

Always select a protection pad that is compatible with the particular sanding machine and backing pad.

Why Are Tear Resistance and Edge Stability Important?

During sanding, the abrasive experiences continuous movement, pressure and friction against the work surface. Weak abrasive backings may tear prematurely, while unstable edges can contribute to unwanted surface scratches.

GRANAT NET uses a resistant mesh construction with high tear resistance and excellent edge stability. These characteristics help the abrasive retain its integrity during use and support consistent sanding quality, even when working close to edges and surface details.

Understanding the STF D150 P320 GR NET/50 Designation

STF: Identifies Festool's StickFix abrasive attachment system.

D150: Indicates the circular abrasive diameter of 150mm.

P320: Specifies the fine abrasive grit classification.

GR NET: Identifies the GRANAT NET abrasive mesh range.

/50: Indicates that the product is supplied in a pack of 50 abrasive discs.