Harris 2¾” x 3⅞” Coarse Sanding Block

Harris Coarse Sanding Block

The Harris Seriously Good Coarse Sanding Block is a high-performance preparation essential designed for rapid material removal and surface leveling. Specifically engineered for heavy-duty tasks, this abrasive block features a rugged, coarse grit that makes short work of stripping old paint, smoothing rough timber, and prepping diverse surfaces for finishing. Its ergonomic design ensures even pressure distribution, providing a superior alternative to loose sandpaper for professional and DIY renovation projects.

Key Benefits

• Seriously Good Preparation: Part of the Harris premium preparation line, designed to deliver high-quality results in less time.

• Multi-Surface Versatility: Specifically formulated for effective use on wood, plastic, and metal surfaces.

• High-Impact Coarse Grit: Ideal for heavy-duty sanding, removing significant surface imperfections, and stripping stubborn coatings.

• Superior Control: The solid block format provides a stable, ergonomic grip, reducing hand fatigue compared to traditional sandpaper sheets.

• Uniform Pressure: Ensures a flatter finish by preventing the “finger-grooving” often caused by hand-sanding with loose paper.

• Durable Construction: Built to maintain its shape and abrasive integrity through demanding sanding tasks.

• Washable and Reusable: Designed to be cleaned of dust and debris, extending the life of the tool across multiple projects.

Technical Specifications

• Type: Coarse Sanding Block

• Dimensions: 2¾” x 3⅞”

• Grit Level: Coarse

• Application: Wood, Plastic, and Metal

• Series: Seriously Good Preparation

• Brand: Harris

Perfect For

• Initial Wood Smoothing: Leveling rough-sawn timber and removing splinters.

• Paint and Varnish Removal: Stripping old, flaking finishes from doors, window frames, and furniture.

• Metal Rust Removal: Cleaning oxidized surfaces and prepping metal for priming.

• Plastic Surface Scuffing: Creating the necessary “tooth” for paint to adhere to smooth plastic components.

• Wall and Ceiling Prep: Smoothing out coarse filler or removing protrusions in plasterwork.

Application Instructions

• Surface Check: Ensure the surface is dry and free from loose debris.

• Technique: Sand in the direction of the wood grain to avoid deep cross-grain scratches.

• Pressure: Apply firm, even pressure. Let the coarse grit do the work—excessive force can cause deep gouges.

• Cleaning: Periodically tap the block against a hard surface to dislodge dust and maintain abrasive efficiency.

• Finishing: After using the coarse block, follow up with medium and fine-grit blocks for a smooth, paint-ready finish.

Pro Tips

• Safety First: Always wear a dust mask and eye protection when sanding, especially on painted surfaces or metal.

• Wet Sanding: Depending on the material, lightly dampening the surface can help minimize airborne dust.

• Corner Work: Use the sharp edges of the block to reach into 90-degree corners and tight trim details.

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