How to Choose Sanding Pad Manufacturer: the Right Grit

The short answer on choosing a sanding pad manufacturer

Here is the rule that governs most sanding pad decisions: match the grit to how much material you are removing, then match the pad style to how dust and control matter on that material. A coarse grit such as P80 or P120 levels stock fast but leaves scratches the next grit has to erase; a fine grit such as P400 cleans up; P1000 and P1500 sit at the polishing end of the scale and exist to soften marks, not remove material. And the pad itself comes in three styles that behave differently: a perforated pad vents dust to the centre of an orbital sander, a solid, holeless pad gives an even, uniform scratch pattern for fine finishing, and a mesh pad runs cooler and longer on demanding, high-heat work. Two scenarios where that rule bends: very soft, sugary materials such as MDF, where even coarse grits load and glaze unless the pad keeps moving; and painted or coated surfaces, where a grit that is too coarse bites through the finish.

The one number that governs everything downstream is the FEPA / ISO 848 grit, because the grit number means nothing unless you know which scale it is on. The second number is the pad diameter and how it attaches — 3, 4, 5 or 6 inch pads, in PSA (peel-and-stick) or hook-and-loop (velcro style) — because a grit you cannot fit to your tool is not a grit you can buy. If your job is everyday panel work, cabinetry or painted metal, start in the P150 to P240 band, confirm the pad fits your sander's attachment system, and confirm the tool's rated speed against the pad before it spins. For the shapes and grits we supply, see the sanding disc range, and keep the abrasives glossary open whenever a label term is unfamiliar.

Two habits turn this from guesswork into a repeatable spec: always name the grit standard (FEPA or ISO 848) in the enquiry, and always match the pad attachment to the sander before the first cut. On every bulk order, whether you are buying a handful or a run for a private label, state the grit, the scale, the diameter, the attachment and the layout to the sanding pad manufacturer — that single line prevents most of the mismatches this page covers. Everything below is the reasoning behind those two moves.

What a sanding pad manufacturer actually produces

A sanding pad looks simple — a disc with grit on it — but three things are engineered into it, and each one trades against the others.

Grain decides how the pad cuts. Aluminium oxide is the all rounder: tough, economical, predictable on wood and painted metal. Zirconia alumina is a tougher, semi open grain that holds up when a soft material packs the face. Silicon carbide cuts harder and is the pick for some laminates and non ferrous materials. Ceramic is the long life option where cost per finished part, not cost per pad, is what you manage.
Backing and layout decide how the pad carries heat and dust. A paper backing is standard on most PSA and hook-and-loop pads; a mesh backing breathes, runs cooler and lasts longer under sustained work. The common diameters across the range are 3, 4, 5 and 6 inch, with perforated, solid and mesh layouts built on the same grains.
Bond holds the grain to the backing. The bond is why a pad is sold in grits: the same grain at P80 is bonded to grab and cut; at P1500 it is bonded to sit and polish. A weak bond on a coarse grit sheds grit into the workpiece; an over-tight bond on a fine grit stops self-sharpening. In practice, you feel the bond as how fast the pad "dies" — a good pad dulls gradually, a poor one cuts sharp then stops.

The grit number itself is a FEPA or ISO 848 designation: the higher the number, the finer the grain and the lighter the cut. FEPA is what most international buyers quote, so naming the standard in every enquiry avoids the classic mix-up where two suppliers ship two different pads for the same "150". The reference is at the FEPA grit standard, and the grain properties are plain reading at the properties of aluminium oxide.

What separates one sanding pad manufacturer from another is how honestly these layers are specified. A factory that states grain, bond, backing layout, diameter, grit and grit scale on the label is telling you what the pad will do; a shop that prints the grit and nothing else is leaving you to guess the rest. The manufacturing and quality page shows where each layer is controlled on our side, and the concrete pad lines — 5-inch mesh sanding discs for cooler sustained work and the 6-inch non-hole sanding disc for fine, uniform finishes — are where you check that the spec sheets match the shelf.

The grit ladder, and where each band cuts

A short ladder to keep in your head when you walk the floor or write an enquiry:

P60 – P80 🪚 — heavy stock removal, knocking down rough surfaces, sanding through thick coatings.
P100 – P120 🔩 — everyday leveling on bare wood, heavy deburring on painted metal, first pass on most panel work.
P150 – P240 📏 — the working band: leveling between coats, blending patches, preparing a surface for primer.
P320 – P400 ✅ — cleanup and inter-coat softening; leaves a uniform low scratch before topcoat.
P600 – P800 🪞 — final scratch refinement before clear coat; softens P400 marks enough that the clear coat does not raise.
P1000 – P1500 ✨ — polishing end of the scale; de-raises, softens fine marks, preps a surface for wax or final clear.
P2000 and finer 💎 — beyond most pad tooling; this is where polish compounds take over, though fine pads exist for delicate painted work.

The rule underneath the ladder is that every layer of scratch must be finer than the one before it. The moment you jump two bands, the coarser scratches survive under the next coat and show through, and no amount of the next grit erases them — you have to go back and erase the coarse layer first. That is the single most common reason a "finished" surface still looks scratchy under raking light.

One habit that saves a lot of money: read the whole label, not just the grit. A pad label lists the grain, the grit and scale, the diameter, the attachment style (PSA or hook-and-loop), and the backing layout. The attachment is the one number people forget. A PSA pad that is too thick for the sander's platen will wobble at the edges; a hook-and-loop pad on a sander that holds its pad with a spring clip instead of loops will not attach at all. So on every order you send, state the grit, the scale, the diameter, the attachment and the layout. The full range of layouts and grits, from coarse perforated pads to fine solid pads, is visible in the sanding disc range.

Choosing grit by material and finish line

Material changes the starting grit even when the tool is the same. The list below is the starting point, not a rule, because the finish you are aiming for and the thickness of the stock both shift things one way or the other.

Bare hardwood 🪵 — P120 to P150 to level, P220 to P240 to bring it even, P320 to P400 before stain or clear. Hardwoods abrade slower than softwoods, so the coarser end stays with you longer.
MDF and engineered wood 🧱 — P80 to P120 to remove stock, then step in small moves. MDF is soft and sugary; it loads a pad fast, so a moving pad on a slightly coarser grit beats a fine grit held in one spot.
Softwood and plywood 🌲 — P100 to P150 to level, P240 to P320 to bring it even. Less material to remove than hardwood, so the coarse end gets less use.
Painted or laminated metal 🧊 — P240 to P320 for inter-coat, P400 to P600 for final softening; skip anything coarser unless you are sanding through the finish.
Castings and rough surfaces ⚙️ — P60 to P80 to open the face, then P120 to P150 in small steps; a rough casting packs a fine grit, so work coarse to fine rather than jumping.

The rule underneath the list is the same as under the grit ladder: match the grit to the material and the finish, and let the grain decide how the cut feels. Aluminium oxide is the grain to default to on wood and painted metal; zirconia alumina is the pick when a soft, packing material clogs the face; silicon carbide is for the harder, slicker materials where a softer grain will not hold. For the wood side of these jobs, the woodworking sanding use notes walk through sequences by timber, and the sanding disc range shows which pad style is stocked for each grit band.

Worked example: prepping a hardwood door for a clear coat. The door comes off the plant straight, with a light orange-peel texture from an earlier sprayed coat and some deeper handling marks. The sequence that clears it is:

P180 on a pad with vent holes to take down the peel texture and the deep marks — this is the one coarse pass; everything after it is refinement.
P240 to even out the P180 scratch so the whole face is in one texture band.
P400 to clean up and soften, so the clear coat will not raise on the P240 scratch.
P800 to bring the scratch down to a depth a clear coat sits over cleanly.

Two things to notice about this sequence. First, the door never sees a two-band jump: each step is one band finer than the last, which is why the face ends up even. Second, the P800 pass is what separates a "sanded" door from a "polar" one; skipping it and going straight to clear is the classic reason a sprayed clear coat still shows scratches under raking light months later. On the same door, a solid (holeless) pad on the P400 and P800 passes gives the most even scratch pattern, because there is no gap for the grain to skip over; that is why the fine end of a sequence is usually where the holeless pad earns its place. You can see the two styles side by side: the 6-inch non-hole sanding disc for the even finish, and 5-inch mesh sanding discs if the door is part of a high-volume run where the pads are on the sander long enough to heat up.

Worked example: leveling MDF panels before edge banding. The panels come in slightly high at the joints, and the shop has three minutes per panel. The tempting move is to run P240 to make the panels even fast; the move that actually works is:

P80 on a moving pad, no holding, to knock the high spots down to the panel average.
P120 to take the P80 scratch off the face.
P180 or P220 to bring the face to a state where edge banding adhesive will grab.

The P240 trap here is that MDF loads it so fast the pad dies in two passes and the face ends up with a mix of P80 and P120 scratches under it. The coarser-first approach looks slower but keeps the whole face in one band, and the edge banding covers it cleanly. The hook-and-loop pads are the pick for this job: the pad swaps in seconds when the MDF loads it, so the operator is not peeling and re-sticking a PSA pad every pass. The hook-and-loop sanding discs page shows the sizes we carry against each grit.

Worked example: de-raising a scratch that reached the base coat. A panel comes off the booth with a fine swirl the clear coat did not erase, and the scratch has reached the base coat, not the metal. The sequence that removes it without eating through the next layer is:

P1000 on a wet pad to take the scratch down to the depth of the next layer; the scratch must be fully opened, not softened.
P1500 on a solid pad to bring the scratch to a depth a fresh clear coat covers cleanly; the solid layout keeps the scratch pattern even across the panel.
A light P2000 pass on the edges, where the scratch shows most under raking light.

The thing the sequence is doing is keeping every scratch finer than the one before it, all the way to a depth the clear coat sits over cleanly. If the scratch reaches the metal, the sequence starts from fill, not grit, and no amount of P1500 erases a scratch that is deeper than the material under it. The fine end of the kit, P1000 through P1500, is what separates a "sanded" panel from one the clear coat will make glassy.

Perforated, solid, and mesh: the pad style question

The grit decides how much the pad removes; the layout decides how it removes it. Three layouts show up on orbital and finishing tools, and each one is a different tool in the kit.

Perforated pad 🕳️ — a ring of vent holes around the pad pulls dust to the centre and into the sander's port. This is the default for orbital tools and for anything where dust is the enemy. The holes also break up the pad, so the layout is slightly less aggressive than a solid one at the same grit — which is why a P240 perforated pad and a P240 solid pad feel different on the same face.
Solid (holeless) pad 🟫 — no gaps, so the grain carries the whole cut. That gives the most even, uniform scratch pattern, which is why the holeless pad is the pick for the final 200 to 400 band on a face that is about to be coated. The trade is dust: without vents, the pad carries more dust at the work and the sander's own extraction has to do the work.
Mesh pad 🕸️ — the backing is an open mesh that breathes and lets the dust fall through. This runs cooler and lasts longer under sustained work, which is why it is the pick for heavy-volume runs where the pad is on the tool for hours. The 6-inch mesh sanding disc is where you see the layout against the grits we carry.

The decision comes down to two questions: what is the tool's extraction, and how long is the pad on the tool? An orbital sander with a dust port wants the perforated layout, because the holes and the port work together. A pad that will be on the tool for more than a couple of minutes at a time, or on a hot job, wants the mesh. A pad that is doing the final refinement on a face that is about to be coated wants the solid layout, because the even scratch is what the clear coat sits over.

One more piece of construction to understand: the Hook and Loop attachment is not just a convenience, it changes the pad's life. A PSA pad wears from the adhesive side as much as from the grit side; a hook-and-loop pad wears from the hook face, and because the pad swaps out in seconds the operator reaches for a fresh pad instead of running the old one until it is flat. On a high-volume line, that swap is the difference between a consistent finish and a face that is good in the middle and rough at the edges. The hook-and-loop sanding discs page lists the diameters and grits we stock on the loop face, and the sanding disc range shows the whole layout against the grits.

Reading a sanding pad manufacturer's spec sheet

When you compare sanding pad manufacturers, the pitch rarely changes; the spec sheet does. A serious factory's sheet names every layer of the pad, and the gaps in that sheet are the gaps in the pad. The fields worth checking, in the order they matter:

Grain — aluminium oxide, zirconia alumina, silicon carbide or ceramic; the grain should be named, not just implied by the price.
Grit and scale — the FEPA or ISO 848 number plus the scale it is on; a number without a scale is a coin flip between two different cuts.
Layout — perforated, solid or mesh; it decides how the pad vents dust and how even the scratch is.
Attachment — PSA or hook-and-loop, and the diameter the attachment is cut for.
Backing and bond — the backing material and how the bond is built up; this is where pad life is decided.
Rated speed — the maximum speed the pad is rated for; confirm it against the tool, because the number must come from the pad, not from a guess.
Packing and marking — what is printed on the box and the individual pad, including the grit and the lot.
Inspection — whether an inspection report or cert backs the grit and the layout on each batch.

Two moves keep the comparison honest. One, ask for a sample against the spec before the full order, and run the sample on the same material and the same tool as the production run, because a sample that cuts one way in your shop will cut the same way at volume. Two, ask the supplier to name the grit scale and the rated speed in writing; when both are on the page, the order is a conversation instead of a gamble. The request a quotation form asks for exactly these fields, and the OEM and private label service page covers the marking and packing side for a branded run.

When a pad dies early

A pad that dies early is not always a bad pad; it is usually a pad run outside its job. The five early-death patterns, and the fix for each:

Loading on soft material. MDF, waxed wood and soft coatings pack the grain face until it stops cutting; the face goes flat and feels hot. The fix is a moving pad, a coarser grit and a more open layout such as the mesh, plus more pad swaps.
Glazing on a fine grit. A P400 or P1000 held too long in one spot burns the grain flat; the scratch stops opening and the face feels glassy. Back off the pressure, keep the pad moving, and drop one grit to re-open the cut.
Edge lift on a solid layout. Without vents, dust works under the pad edge and lifts the corner; the face shows a rough ring near the pad rim. Switch to a perforated layout on that tool, or clear the dust port.
Speed mismatch. A pad below the tool speed runs hot and delaminates; a tool above the pad rating risks separation. Confirm the rated speed against the model and keep the tool below it.
Attachment drag. A dirty hook-and-loop platen or a worn PSA face pulls the pad off the platen, so the face shows a wavy scratch. Clean the platen or re-stick before the next pass.

For each of these, the sanding disc range shows the layout to reach for, and the woodworking sanding use notes give the sequence by timber. The thread is the same as with the mistakes list below: an early death is a match problem wearing a quality problem's name, and the fix is almost always the same match.

Speed, dust, and safety, in plain terms

Sanding is quieter and cleaner than grinding, but it is not risk-free, and the honest message is that compliant use lowers the risk rather than removing it. A few practices do most of the work. Keep the tool's own guards and the sander's dust port in use; the port is the first barrier against a face loaded with fine dust. Confirm the tool's rated speed against the pad and keep it below that rating, and never run a pad past the speed it is rated for. Check that the pad is seated fully on the platen, not just on the edge, and that the attachment — whether PSA or Hook and Loop — is clean, because a loop face packed with dust will not hold a pad flat. Wear eye protection, and on dry sanding with heavy dust, use the tool's dust extraction and the right respiratory protection for the load. The U.S. PPE general requirements are a good starting point at OSHA 29 CFR 1910.132 — PPE general requirements, and a practical read on portable power tools is at OSHA 29 CFR 1910.244 — portable power tools. A plain-language reading of how abrasive wheels and pads are set up and used is at CCOHS: Abrasive Wheels. Read all three before the team starts, and re-check the platen and the dust port each shift.

Dust is worth its own line because it is the part people under-plan. A sanding pad throws fine dust that is easily breathed in and easily tracked around the shop, and on some timber the dust carries the chemistry of the wood itself. Three things that help: the tool's dust port actually connected to an extractor, the extractor running at the work and not just at the wall, and a bin for the waste that is not just swept to the corner. On materials that can carry silica, the dust control has to be taken more seriously, because that is the hazard that turns a routine sanding task into a long term exposure. The dust topic is covered plainly at abrasive dust and airborne particulates, and the setup side is at CCOHS: Abrasive Wheels.

Two failure modes deserve their own line. A pad run past its rated speed will delaminate and separate; a pad that is not seated fully on the platen will walk and catch at the edge. Both are preventable, and both start at the label. So make the habit: read the pad, read the tool, and only then start the job.

Cost, pad life, and lead time

On cost, people usually buy the cheapest pad per unit and end up paying for it in machine time. A pad that keeps cutting through the whole face, rather than dying at the second pass, lowers the cost per finished part, and the difference shows up in how many faces you get between pad changes. For a job with steady volume, the wear rate and the cost per finished part matter more than the sticker price, which is the core idea behind buying pads on a wholesale basis from a sanding pad manufacturer rather than a handful at retail.

A useful way to compare two pads you are choosing between is cost per finished part, not cost per pad. If pad A costs more but lasts three times as long over the same job, the finished part is cheaper on A. That is the number to ask a supplier to help you with, and it is the number a wholesale conversation should be built around. The request a quotation page is where to start, and the OEM and private label service page explains what we can put on the packaging and how minimum order quantities work. A short note on the numbers we share: we list grit, attachment, diameter and grit scale as standard, and we confirm the rated speed against each model before an order ships, because that number has to come from the pad, not from a guess.

On lead time, two things set it. In stock grits and common diameters ship fast; off grid grits or a layout we do not hold in the same run take longer, because the grain, the backing and the bond all have to line up. For OEM or private label work, add time for the label, the packing and any spec sheet you want on the box. If you are planning a regular order or a branded run, the request a quotation page is where to start, and confirm the minimum order quantity and the lead time with sales before you commit to the run.

Pad life is where the two attachment styles pull apart most. A PSA pad on a high-volume run will wear from the adhesive side and have to be re-stuck more often, so its life is limited by the adhesive, not the grit. A hook-and-loop pad on the same run will wear from the hook face, but because the pad swaps in seconds the operator reaches for a fresh one instead of running the old one flat. The practical read: if your pads are dying fast and the face is showing a rough, uneven scratch, you are probably on the wrong attachment for the volume, not the wrong grit.

Common mistakes and how to fix them

The fixes are usually cheaper than the mistake. Here is what shows up most often, with the fix that actually moves the problem:

Skipping grits. Going from P120 straight to P400 leaves P120 scratches under the finish; add the P180 and P240 steps and the surface clears. A two-band jump is the single most common reason a face still shows scratches after a full sequence.
Holding the pad in one spot. A fine grit held still glazes and loads, which is the opposite of cutting more. Keep the pad moving, and if the cut dropped when you leaned in, the fix is lighter pressure and a moving pad, not a coarser grit.
Wrong pad layout for the tool. A solid layout on an orbital sander without a matching port carries dust at the work; a mesh pad on a tool that runs cool and light gets no benefit from its extra life. Match the layout to the tool's extraction and the job's heat, and the pad works the way it was designed to.
Attachment not clean. A hook-and-loop platen packed with dust will not hold a pad flat, and the face shows it as a rough, uneven scratch. Clean the platen before the shift, not after the face is done.
Grit scale mix-up. Buying a "150" on one supplier's scale and a P150 on another's can land two different grits on the same shelf. Name the scale in every enquiry, and keep the shop to one scale so the grits on the shelf are comparable. The reference is at the FEPA grit standard.
Heat on a thin part. A coarse grit on a thin panel or a coated part builds heat that can warp the part or raise the finish; drop a grit and keep the pad moving rather than pressing in.

For any of these, the sanding disc range shows the grit and layout to reach for, the woodworking sanding use notes give the sequence by timber, and the abrasives glossary defines the terms so you and your team are diagnosing the same problem. The thread that runs through all of them is that a pad is only as good as the grit, layout, attachment and speed you matched it with before the job started; most of the complaints are really a mismatch complaint wearing a grit's name.

FAQ

What grit do I start with on a bare hardwood door? In many cases P120 to P150 to level, then P220 to P240 to bring it even, then P320 to P400 before the clear coat. Start coarse, work down in one-band steps, and never jump two bands.

What is the difference between a perforated and a solid pad? A perforated layout vents dust to the centre of an orbital sander's port and is slightly less aggressive at the same grit; a solid pad gives the most even scratch pattern and is the pick for the final 200 to 400 band before a coat. Match the layout to the tool's extraction and the job's final finish.

What does P1500 do that P400 does not? P1500 de-raises and softens on a face that is already close; P400 does the real prep and cleanup. You use P400 first and P1500 on top, not the other way around.

PSA or Hook and Loop for a high-volume line? Hook and Loop, because the pad swaps in seconds when it loads or wears, so the operator reaches for a fresh pad instead of running the old one flat. PSA is fine for spot repair and lower volume, where the re-stick is not the bottleneck.

Which of two sanding pad manufacturers should I pick? The one whose spec sheet names the grain, the grit scale, the layout, the attachment and the rated speed in writing, and who will run a sample against that spec on your material. A sheet that only prints the grit is a sheet that leaves you guessing.

What standard should I name in an enquiry? Name the FEPA or ISO 848 grit plus the diameter and attachment; that keeps your order from being mixed with a different grit scale. The reference is at the FEPA grit standard.

How do I buy pads in bulk or with my own label? Send the grit, the scale, the diameter, the attachment and the layout to a supplier, and ask for the minimum order quantity and the lead time; the request a quotation form and the OEM and private label service page are where a bulk or branded run starts.

Does a mesh pad really last longer than a paper one? In many cases, yes, on sustained work: the open backing breathes, runs cooler and the grain wears evenly, so the pad stays cutting for more faces. The trade is cost per pad, not cost per finished part, which is why the mesh shows its value at volume.

Before you buy

A short compliance and purchasing checklist. This is a reminder, not a substitute for your own site rules, and in compliant use with the right protection the risk of these tools is reduced but not zero.

Confirm your tool's maximum speed is below the pad's rated speed before every use, and confirm the rated speed against the model before you order.
Check that the pad attachment — PSA or hook-and-loop — matches the sander's platen, and that the platen is clean before the shift.
Fit the tool's dust port and keep it connected to an extractor at the work, not just at the wall.
Wear eye and face protection, and use the right respiratory protection for the dust load on dry sanding.
Name the grit and the grit standard (FEPA or ISO 848) in every order, and keep the shop to one scale so the grits on the shelf are comparable.
Ask for the inspection report or cert that backs the grit and the layout on the box; the PPE and setup baselines are at OSHA PPE general requirements and CCOHS: Abrasive Wheels.
Store the pads in a dry, cool place away from direct heat, and follow the install notes for the attachment before the first cut.
Confirm lead time, minimum order and packing for any bulk or private label order, and start with the quotation form.

If you tell us the material, the finish you are aiming for and the tool you run, we can help you pick the grit and the pad style to start from. Send the three and we will work the sequence with you on the request a quotation page.