The Mirka COARSE CUT 8" PSA sanding disc is a coarse abrasive disc built for heavy sanding and surface preparation. This is a sanding disc designed for coarse sanding, stripping, and fast material removal across wood, metal, composites, and coated surfaces. Model number 40-352-036 is the P36 version, which is the right place to start when the surface is rough and you need to remove material quickly rather than chase a fine finish.

What matters here is how the spec translates to the job. An 8 inch, 200 mm disc gives you broad surface coverage, which helps on larger panels and flat work where smaller discs waste time. The P36 grit is firmly on the aggressive end, so it is better for knocking down stock, removing finishes, and opening up uneven surfaces than for final prep. If your first pass needs to do real work, this is the kind of abrasive you reach for.

Mirka calls out reinforced backing and dust binding properties, and both are useful in real-world sanding. The reinforced backing helps the disc stay together during coarse work, especially when you are working harder materials or dealing with edges and surface irregularities. Dust binding properties help manage sanding debris at the disc level, which can support more consistent cutting during messy stripping and prep tasks.

This abrasive is also broad in material range, which is a big plus for fabrication shops, body and paint work, marine repair, woodworking, and general refinishing. It is suitable for steel, mild steel, non-ferrous metal, stainless steel, cast iron, pine, hardwood, soft resinous wood, chipboard, MDF and HDF, plastics, synthetic materials, glass fiber, paint stripping, and lacquer work. That kind of spread makes it easier to keep one coarse sanding disc on hand for multiple stages of rough prep.

The PSA format matters if you want straightforward disc changes on a matching sanding pad. For users already set up around pressure-sensitive adhesive abrasives, this Mirka disc is a simple fit for coarse sanding tasks where speed and durability matter more than finish quality. It is best suited to pros and serious DIY users doing paint removal, leveling, cleanup, or heavy prep before stepping through finer grits.

Mirka COARSE CUT 8" PSA Sanding Disc Means Business

If you need a disc for real material removal, not touch-up sanding, this is the kind of abrasive that earns its keep fast.

• Who it's for: Pros and serious DIY users doing paint stripping, metal prep, wood leveling, and rough composite sanding.
• Why it stands out: The 8 inch size covers ground quickly, the P36 grit cuts aggressively, and the reinforced backing is built for coarse work instead of light finish sanding.
• Worth knowing: The Mirka COARSE CUT 8" PSA sanding disc is a first-step abrasive. It is great for getting surfaces down fast, but you will need finer grits afterward if the job calls for a cleaner finish.

• What type of sanding is this disc made for? It is designed for coarse sanding and fast material removal.
• What grit is model 40-352-036? This part number is the P36 grit version.
• What materials can it be used on? It is suitable for steel, mild steel, non-ferrous metal, stainless steel, cast iron, pine, hardwood, soft resinous wood, chipboard, MDF and HDF, plastics, synthetic materials, glass fiber, paint removal, and lacquers.
• What disc size is it? This is an 8 inch, 200 mm PSA sanding disc.