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    spx vs mirka sanding discs

    SPX vs Mirka: Which Abrasive System Is Right for Your Workshop?

    Bottom line: SPX is a practical alternative to Mirka for Australian panel shops that want trade-focused sanding discs, 150mm formats, 15-hole dust extraction, ceramic options, and simple local supply. Mirka makes a genuinely strong dust-managed system and suits shops fully committed to its tools and abrasives — but you do not have to buy into a whole ecosystem to sand clean and fast.

    This comparison is meant to be fair. It covers where Mirka leads, where SPX competes hard, and where Mirka might still be the right call for your shop.

    See SPX 15-hole discsTrade & wholesale pricing
    15-hole dust extraction150mm trade focusCeramic optionsMelbourne dispatch
    Quick comparisonDust extractionBest for SPXBest for MirkaFinal verdict

    SPX vs Mirka at a glance

    The short version. The dust-extraction and supply sections below are where this decision is usually made, so read those before you commit.

    SPX vs Mirka sanding discs comparison for Australian panel shops.
    CategorySPXMirkaBest fit
    Main use caseAutomotive sanding and refinish workflowDust-managed sanding across an integrated systemSPX for flexible, mixed-tool shops
    Disc sizes150mm-focused trade rangeWide range across many formatsSPX for standardised 150mm shops
    Dust extraction15-hole options, strong when pattern matchesNet and multi-hole designsMatch to your sander and pad
    Ceramic optionsYes — built for cost-per-job cutYes, across several linesSPX for value on cut stages
    Tool dependenceWorks with standard 150mm sandersBest inside the Mirka tool ecosystemSPX if you run mixed brands of sander
    Supply modelAustralian trade/wholesale, Melbourne dispatchDistributor and dealer networkSPX for simple local repeat supply

    SPX 15-hole discs in this comparison

    These are the SPX 150mm 15-hole discs most often compared against Mirka's dust-extraction range. Check grit and pack style, then read the dust-extraction and cost sections below.

    Dust extractionRange comparisonCost per jobThe verdict
    SPX 150mm Ceramic Sanding Discs - 120–1200 Grit (100 pcs)
    DiscsIn stock

    SPX 150mm Ceramic Sanding Discs - 120–1200 Grit (100 pcs)

    Pros don’t have time for discs that die halfway through the job. Cheap sanding discs might look cheaper upfront, but on the job they cost you more...

    $78.54
    GST included
    View product
    SPX 150mm Ceramic Sanding Discs - 60–80 Grit (50 pcs)
    DiscsIn stock

    SPX 150mm Ceramic Sanding Discs - 60–80 Grit (50 pcs)

    You're not paying for discs. You're paying for every minute you waste changing them. Every worn-out disc is a break in your rhythm, machine off, di...

    $43.20
    GST included
    View product
    SPX 150mm Sanding Disc – MIXED Packs (100pcs)
    DiscsIn stock

    SPX 150mm Sanding Disc – MIXED Packs (100pcs)

    Choose from Low, Medium or High Grit SPX 150mm Sanding Disc – Mixed Low Grit Pack (100pcs) Grits: 25 × P80, 25 × P120, 25 × P180, 25 × P240 Get the...

    $86.39
    GST included
    View product

    Dust extraction and hole pattern — the real Mirka question

    If you are comparing SPX with Mirka, dust is almost always the reason. Mirka earned its name on dust-managed sanding, and its net-style discs pull debris across the whole face. That is a genuine strength, especially on fine finishing where surface cleanliness shows.

    SPX takes the 15-hole route. For shops using compatible backing pads, 15-hole sanding discs can support strong dust extraction by moving debris away from the work surface — provided the hole pattern lines up with the pad and the sander. Get that match right and dust pickup through coarse and mid-grit stages is excellent. Get it wrong and no disc design saves you.

    So the honest framing is: net designs have an edge on the finest finishing, while well-matched 15-hole discs handle the bulk of refinish sanding cleanly and at a lower cost per job. Check fitment first.

    Check 15-hole fitment before you switch from Mirka →

    Fitment warning before you reorder

    • Dust extraction only works when disc holes match the backing pad
    • Mirka pads use their own hole layouts — confirm against SPX 15-hole
    • Mismatched patterns lose pickup no matter how good the disc is
    • Test one pack on your sander before buying in volume
    • If your pad is net-specific, factor in a pad change

    Net vs multi-hole vs 15-hole dust extraction

    Three extraction designs, three different jobs. This is the part most brand comparisons skip — here is how net, multi-hole, and 15-hole discs actually move dust, and where each one shines.

    How net, multi-hole, and 15-hole sanding discs extract dust, and the best-fit stage for each.
    Extraction designHow it pulls dustBest-fit stage
    Net (e.g. Mirka Abranet)An open mesh extracts across the whole face, so dust has only a very short path to a hole — Mirka cites roughly 0.5mm to the nearest extraction point.Fine finishing and dust-critical work where surface cleanliness shows.
    Multi-holeMany drilled holes spread pickup across the disc, but extraction depends on the holes lining up with the backing pad.General refinish work when disc and pad patterns match.
    15-hole (SPX)A defined 15-hole pattern clears debris well when matched to a compatible 15-hole pad and extractor.Coarse and mid-grit refinish stages — filler, primer, guide coat.

    How to compare them honestly

    Mirka loyalty is usually earned through the system working as a whole, so a fair comparison has to test the disc and the dust pickup together. Put SPX and Mirka on the same sander, same stage, same extractor, and watch what actually changes.

    Approved reviews
    26

    Across the SPX 15-hole products shown on this page.

    Average rating
    4.8/5

    From approved reviews on matching SPX discs.

    The fair SPX vs Mirka test

    • Use the same sander and extractor for both discs
    • Pick one stage — primer sanding is a good neutral test
    • Check dust left on the panel after each pass
    • Count disc changes to finish the stage
    • Compare scratch consistency at the end of disc life
    • Then compare the cost per finished job

    What each brand is actually known for

    Both make good abrasives. They just sell different things — one a system, one a focused disc range.

    What Mirka is known for

    Mirka is known for dust-managed sanding and a tightly integrated system of sanders, pads, and net-style abrasives. If your shop runs Mirka tools end to end, the system is cohesive and well supported. The trade-off is that you tend to stay inside the ecosystem to get the full benefit.

    What SPX is known for

    SPX focuses on the discs a refinish workshop reaches for daily: ceramic and standard 150mm discs, 15-hole dust extraction, and direct trade supply. It is brand-agnostic on tools, so it suits shops running mixed sanders that still want clean dust pickup and a sharp cut.

    Where they overlap

    For everyday filler, primer, guide coat, and paint prep, both brands cover the same stages. That overlap is exactly where it pays to compare on cost per job and fitment rather than brand reputation.

    Product range and fitment compared

    Cautious by design: Mirka specs vary by line and region. Always confirm fitment against the specific Mirka product you currently run.

    SPX and Mirka product range and dust-extraction fitment compared.
    What you are buyingSPXMirka
    150mm sanding discsCore focus of the rangeAvailable across multiple lines
    Dust extraction design15-hole pattern, pad-dependentNet and multi-hole designs
    Ceramic optionsYes — positioned for cost-per-job cutYes, across several lines
    Tool requirementStandard 150mm sandersBest with Mirka tools and pads
    Grit rangeCoarse cut through fine prep for refinishVery broad across applications
    SupplyDirect trade/wholesale, Melbourne dispatchThrough distributor and dealer channels

    Cost per job, not cost per packet

    The better question is not which disc has the lowest packet price. It is which disc gives the best cost per job once you include disc life, cut consistency, labour time, dust control, and rework risk.

    Mirka can absolutely justify its price inside a committed Mirka shop, where the system efficiency adds up. But if you are buying discs to fit sanders you already own, paying an ecosystem premium is harder to defend. SPX is built to deliver clean dust pickup and strong cut at a cost per job that works for a busy, mixed-tool workshop. As always, prove it on one real job before you switch your standing order.

    See the full 150mm grit and value guide →

    Who should choose SPX

    SPX is a strong fit for:

    • Shops running mixed brands of sander, not one ecosystem
    • Panel shops standardising around 150mm discs
    • Buyers who want 15-hole dust extraction at a fair price
    • Teams that want ceramic cut without a premium-brand markup
    • Buyers who value simple local wholesale supply

    Who should choose Mirka

    Mirka may be the better fit if:

    • Your shop is fully standardised on Mirka tools and pads
    • You rely on net-style discs for the finest finishing
    • Your technicians specifically request the Mirka system
    • You value one integrated tool-and-abrasive supplier
    • You already have dealer supply terms in place

    Final verdict

    For Australian panel shops comparing SPX and Mirka, SPX is best viewed as a flexible, trade-focused alternative rather than a copy of an integrated system. Mirka is hard to beat inside a committed Mirka shop, especially for net-based fine finishing.

    But if you run mixed sanders, want strong 15-hole dust extraction, ceramic options, 150mm formats, and simpler local supply, SPX belongs on your shortlist. Confirm hole-pattern fitment, run one real stage side by side, and let cost per job decide.

    Keep comparing

    Follow the decision into fitment, format, and other brand comparisons.

    15-hole sanding discs

    Dust extraction fitment guide for matching pattern to pad.

    Open page
    150mm sanding discs

    Full grit selection guide for the 6-inch standard.

    Open page
    Automotive sanding system

    Stage-by-stage workflow from filler to paint prep.

    Open page
    Mirka alternatives

    Looking at more than one option? See the alternatives page.

    Open page
    Reviewed by SPX Abrasives

    SPX Abrasives Trade Team

    SPX Abrasives is a Melbourne, VIC supplier of professional sanding abrasives for retail, trade, and wholesale buyers across Australia. This comparison is written and checked by people who sell, test, and use these discs in a working paint shop.

    Location:
    Melbourne, VIC, Australia
    ABN:
    28 675 457 315
    Last updated:
    15 June 2026

    How we compare sanding discs

    • Fitment: disc size, hook-and-loop, and hole pattern against common workshop sanders
    • Abrasive type: ceramic, aluminium oxide, or film matched to the sanding stage
    • Sanding stage: filler shaping, primer, guide coat, and paint prep
    • Dust extraction: hole pattern and pad compatibility
    • Supply model: local trade dispatch versus distributor or import stock
    • Cost per job: disc life, cut retention, labour time, and rework — not packet price

    Disclaimer: competitor specifications vary by product line and region and can change over time. Brand names are used for comparison and identification only. Always confirm disc and hole-pattern fitment against your own sander and pad before switching.

    Sources and references

    Competitor positioning in this comparison is checked against official manufacturer information. We do not copy competitor content; links are provided so you can verify claims yourself.

    • Mirka — Dust-free (net) sanding — Official Mirka overview of net abrasives and dust extraction.
    • Mirka — Abranet net abrasive — Official Abranet page, including the ~0.5mm dust-path detail referenced above.

    SPX vs Mirka sanding discs FAQ

    Is SPX a good alternative to Mirka sanding discs?+
    For many Australian panel shops, yes. Mirka built its reputation on dust-managed sanding and a tightly integrated tool-and-abrasive system, and that system is genuinely good. SPX is the better fit when you want strong sanding-disc performance and dust extraction without committing to one brand ecosystem — especially if you run mixed sanders and want simpler local trade supply.
    How do SPX discs compare to Mirka net or multi-hole discs?+
    Mirka net-style discs extract dust across the whole face, which is a real strength on fine finishing. SPX uses 15-hole dust extraction, which performs strongly when the disc and backing pad hole patterns line up. For coarse and mid-grit refinish work, well-matched 15-hole discs handle dust well; for very fine finishing, net designs still have a following. The honest answer is to match the disc to the stage and your sander.
    Do 15-hole SPX discs fit Mirka sanders and pads?+
    It depends on the pad. Dust extraction only works when the disc hole pattern matches the backing pad and the sander. If you run a Mirka pad with a specific multi-hole layout, confirm the SPX 15-hole pattern lines up before switching in volume. Our 15-hole fitment guide walks through exactly what to check.
    Does SPX sell 150mm sanding discs?+
    Yes — 150mm is the core of the SPX range. It is the 6-inch workshop standard for automotive refinishing, so the discs, grits, and dust-extraction options are all built around it.
    Are ceramic SPX discs worth it versus Mirka?+
    For repetitive cut stages like filler shaping and primer sanding, ceramic usually earns its keep by holding cut longer and reducing disc changes. SPX ceramic discs are positioned to give that performance at a competitive cost per job. Compare them against your current Mirka discs on one real stage and count the changeovers.
    Can trade buyers order SPX abrasives wholesale?+
    Yes. SPX supplies trade and wholesale buyers directly with Melbourne dispatch, which keeps repeat ordering simple and local rather than tied to distributor stock.

    Test SPX against your current Mirka discs

    Confirm fitment, order a trade pack, and compare dust pickup and cost per job on one real job. Wholesale options available for repeat buying.

    Shop SPX 15-hole discsOpen wholesale account
    Schleifpunkt X Logo

    Premium precision-engineered abrasives for professionals. Designed to be dependable, scaled for trade.

    ABN 28 675 457 315

    MSDS Sheet

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    Phone

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    Location

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