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Inox MX3 Aerosol Anti Corrosion Lubricant 300gm Can $7 @ Bunnings Warehouse

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Inox MX3 Aerosol Anti Corrosion Lubricant 300gm Can $7 @ Bunnings Warehouse
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Parsimonious Pete on 07/06/2026 - 16:40 bunnings.com.au (4429 clicks)
Last edited 07/06/2026 - 21:52 by 1 other user

This is a pretty well regarded multipurpose lubricant, often favoured over WD-40. At Supercheap currently over $15 during their 25% off promotion. Usual Bunnings price seems to be $12.95 and it’s displaying at $9-95 (which is current Amazon price) but it’s scanning at $7 (as website confirms)

MX3 is an anti-corrosion anti-moisture lubricant designed to be sprayed on surfaces and between moving parts. The lubricant is made with a high grade white oil, rust inhibitors and other components to give lasting protection from corrosion and oxidation.
MX3 will penetrate through bolts and parts that are stuck together to help loosen and easily free up without causing damage. The special MX3 anti-corrosion, anti-moisture formula is now sought after all around the globe making it one of the leading lubricants in the world today.
These qualities make it safe for almost every market out there including: Automotive, aviation, commercial, domestic, electrical & electronics, engineering, farming & mining, firearms, fishing, hobbies, manufacturing, marine, motorcycles, sports and transport.

Home & Garden Inox Lubricant

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  • asspray on 07/06/2026 - 16:45

    thanks. will buy.

    • 0
    • asspray on 07/06/2026 - 16:50

      what can i spray this with? car door hinges? whiny doors? what else? ideas?

      • 0
      • Irishness on 07/06/2026 - 17:04

        great to lubricate & penetrate best not use on human parts though

        • 11
        • PvsNP on 07/06/2026 - 18:06

          How about a rubiks cube?

          • 0
        • DarwinBoy on 07/06/2026 - 21:15

          Best penetrating spray is 50/50 atf/acetone.
          Works great and much cheaper if you have atf handy.

          • 0
          • ripprind on 08/06/2026 - 07:07

            @DarwinBoy: only that acetone will eat through most plastics, good luck finding a spray bottle that it doesn't destroy

            • 0
            • rumblytangara on 08/06/2026 - 09:57

              @ripprind: If you're mixing acetone with anything, you're not putting it an an ABS spray bottle.

              • 0
            • DarwinBoy on 08/06/2026 - 20:28

              @ripprind: My parents use to be carpet cleaners so they have plenty of durable spray bottles handy for me to use. One I'm using now has had a mix in it continually for 12 months and still going strong.
              I've used cheap bunnings ones and get months of use. Usually 6 months or so which isn't bad considering they usually fail in that time frame no matter the contents I've found.

              • 0
          • tunzafun001 on 09/06/2026 - 09:27

            @DarwinBoy: ATF pumped into sticking brake, throttle, steering cables with a garden pump sprayer is amazing.

            Don't put any ATF in the actual sprayer. Just add a length of hose / clear tube over the end of the garden sprayer. Say 1m. Full that with ATF and pump it through…

            Any cable (especially boats etc)…brand new…

            • 0
      • SuiCid3 on 07/06/2026 - 17:17

        Great for locks as it doesn't gum up/attract dirt.

        • 0
        • M00Cow on 07/06/2026 - 18:45

          it certainly will, you need silicon or even better graphite based spray. Oil based lube attract & retain dust/dirt which is why they gunk. Silicon doesn't as much, Graphene/graphite doesn't at all. my old man is a retired locksmith.

          • 9
      • RogerLoger on 07/06/2026 - 17:18

        Inox is a lubricant. The WD-40 most people think of is NOT a lubricant, but a cleaning fluid and water displacer (was an essential bit of kit in cars back in the days of distributors that were splashed when cars went through puddles).

        WD40 now make a lot of different products https://wd40.com.au/product

        To spray sticking locks, avoid both. A PTFE Teflon spray will clean the mechanism and not leave an oily film.

        • 20
        • Igaf on 07/06/2026 - 17:31

          The original is a lubricant, of sorts: https://wd40.com.au/product/wd-40-classic-spray
          It does leave a dirt accumuating film though as you say.

          • 1
          • M00Cow on 07/06/2026 - 18:48

            @Igaf: rubbish, oil attracts & keeps dirt/dust.

            • -3
            • Igaf on 07/06/2026 - 18:59

              @M00Cow: Have another read, or phone a friend.

              • 3
              • Tennessee Jack on 07/06/2026 - 22:21

                @Igaf: Agreed. So many people jump on the bandwagon about WD40 not being a lubricant, even though the manufacturer states otherwise.

                • 0
                • Headless on 07/06/2026 - 22:33

                  @Tennessee Jack: but they are right tho, buy the wd40 lubricant spray instead

                  • 0
                  • tunzafun001 on 09/06/2026 - 09:24

                    @Headless: WD 40 is Kerosene based (smell it).
                    So leaves a faint oily residue. But I would never use kerosene as a lube, and definitely not in a lock.

                    • 0
                    • Hugh G Rection on 14/06/2026 - 07:49

                      @tunzafun001: Most use it as lube, but It isn't lube; it is used to displace moisture and loosen rusted or stuck mechanisms

                      • 0
                  • Igaf on 09/06/2026 - 10:29

                    @Headless: MSDS says the original contains 10-30% petroleum oil along with distillates and other petroleum based products. Hence the oily dust-attracting film it leaves. Great for hand tools, squirting into old rotary clothes line shafts etc etc.

                    There are better products if lubrication is the primary aim. In some cases apply the WD40/equivalent, wipe off, then apply your choice of oil/grease/spray. Entirely dependent on the use case.

                    • 0
                • fantombloo on 08/06/2026 - 13:51

                  @Tennessee Jack: Water is a lubricant too.

                  • 0
              • M00Cow on 08/06/2026 - 22:01

                @Igaf: asked a dad who spent 40+yrs as locksmith… its a dirt/dust attractant.

                • 0
                • Igaf on 08/06/2026 - 22:16

                  @M00Cow: Here's what I wrote, in larger text:

                  The original is a lubricant, of sorts.

                  It does leave a dirt accumulating film though as you say.

                  I can confirm that "a dad's" experience is the same as mine with every de-watering lubricant I've used. WD40, LP1, Exceed X, RP7, Motortech….. If I can, always wipe excess spray off when I use DWFs for that very reason.

                  • 0
        • bargaino on 07/06/2026 - 17:45

          I thought graphite was the best lube for locks?

          • 7
          • RogerLoger on 08/06/2026 - 07:04

            @bargaino: It's good, but you tend to get graphite spill. Read about dry PTFE/Teflon lock lubricant.

            • 0
      • Jimothy Wongingtons on 07/06/2026 - 17:38

        How else could you get a small cylinder (5.1in length, ~4.5in girth) unstuck from a mini M&Ms tube filled with butter and microwaved mashed banana?

        • 4
        Jimothy Wongingtons on 07/06/2026 - 17:38 (Collapsed - Offtopic. Show)
      • asspray on 15/06/2026 - 08:44

        https://www.youtube.com/watch?v=Ryo47PPzamU is this video a joke, or true?

        • 0
  • lordezekiel on 07/06/2026 - 16:51

    If you want 3 cans delivered Amazon's got em for $21 https://www.amazon.com.au/Inox-Original-Formula-Lubricant-Sp…

    • 5
    • Chocobros on 07/06/2026 - 17:08

      If you have onepass you can get one can delivered for $7 from bunnings

      • 18
    • ocular on 07/06/2026 - 18:15

      For an addict, it is so much easier to use Amazon Prime and click for 3 cans than use Bunnings App/website.

      • 11
      • Tennessee Jack on 07/06/2026 - 22:16

        And it will arrive so much sooner.

        • 1
        • PleasureMe on 08/06/2026 - 09:28

          Not true. I purchased 1 can from Bunnings last night and got a message saying it's being delivered today.
          Totally on par with Prime. I dont get the comment about Prime being easier, both are completely easy to use. The benefit of Bunnings is that you get Flybuys points as well.

          • 0
    • SuperHanz on 07/06/2026 - 20:10

      It was available 20 minutes ago.

      • 0
  • PCHammond on 07/06/2026 - 17:04

    Way better than wd40. Probably the best readily available light oil

    Australian owned too

    • 9
    • Irishness on 07/06/2026 - 17:04

      agreed

      • 0
      • RogerLoger on 07/06/2026 - 17:31

        Disagree. The best spray depends on the situation. For example, you wouldn't spray either to lubricate zippers.
        Search for 'best spray lubicant for {whatever}' and make a choice from the result.

        • 1
        • PCHammond on 07/06/2026 - 18:18

          Would you spray a light oil on zippers?

          The fact is, for the majority of people a light oil is all that is needed 95% of the time. A specialised lubricant, while nice, is a whole different conversation that is irrelevant to the deal at hand

          • 3
          • ocular on 07/06/2026 - 18:48

            @PCHammond: I agree, this is the best general purpose spray out there. It's formula is a Colonel Sanders secret, but my hunch it is a white paraffin oil, but that is a guess. I frequent a marine environment and buy Inox M3 in bulk. Spray it on zippers on back packs, duffle bags and coats with no adverse effects. Boats, trailers, car underbodies, hinges and locks, battery connections and electrical equipment such as chargers and power tools to extend their life. Repeated application does produce a fine film that is water repellant.

            • 0
        • tenpercent on 07/06/2026 - 20:20

          wouldn't spray either to lubricate zippers.

          Would you spray anything to lubricate zippers?

          Who even lubricates zippers?

          This sounds a bit like

          You wouldn't spray either to lubricate a slice of toast.

          It's trivially true.

          • -1
          • RogerLoger on 07/06/2026 - 20:59

            @tenpercent: I fish the surf walking with a backpack. If zippers aren't lubricated they seize. The right spray is good for jackets, etc too. It dries fast and leaves no stain.

            • 4
          • rumblytangara on 07/06/2026 - 23:48

            @tenpercent:

            Who even lubricates zippers?

            Me, I guess.

            Sports gear that gets exposure to salt environments get a buildup on the zippers which a light machine oil gets rid of.

            • 1
            • tenpercent on 09/06/2026 - 08:47

              @rumblytangara: Why not rinse the salt away with fresh water?

              • 0
              • rumblytangara on 09/06/2026 - 12:00

                @tenpercent: I'm using the word salt in the broader chemical sense, it's not sodium chloride (table salt).

                Whatever the weird chemical salt is, it is nonpolar. This seems to happen closer to the sea or in high humidity climates.

                Water is a polar molecule, so it doesn't dissolve a nonpolar compound. Oil is nonpolar so that's what you use to dissolve it.

                That's the science lesson for today :)

                • 0
                • tenpercent on 09/06/2026 - 12:44

                  @rumblytangara: I'm aware how solvents work. That's why I suggested fresh water. The majority, 77-90% of dissolved salt, in seawater is sodium chloride. So what is this mysterious nonpolar salt that occurs closer to the sea or in high humidity climates? Aren't all salts ionic anyway?

                  Plastic zippers should be the go for seaside/humid environments. But if the zippers are metal I can imagine the oil creates a barrier to prevent salty sea spray causing rust. If the zipper is already clogged up with salt crystals you should probably rinse with fresh water first to actually remove the buildup.

                  • -1
                  • rumblytangara on 09/06/2026 - 12:52

                    @tenpercent: Again- this stuff isn't salt salt, and seems to happen with plastic zippers as well (well, I think they're plastic but I've not taken a magnet to it to test if there is steel involved as I honestly can't be arsed).

                    This is how I've been dealing with stuck zips on sports gear for decades in a subtropical, seaside environment. Water was the first thing I tried. Didn't work. Someone suggest light machine oil and it was an instant fix.

                    You asked about lubricating zips, and I answered…?

                    Edit: Here you go. This is what it looks like. No part of the zip responds to a magnet.

                    • 0
                    • tenpercent on 09/06/2026 - 13:22

                      @rumblytangara: You said the oil is dissolving some new special salt. Salts are ionic, so I don't think it is. I haven't disputed that it is lubricating the zip mechanism.

                      • 0
          • Tiggrrrrr on 08/06/2026 - 18:18

            @tenpercent: Patio blind zippers?

            I rub a bit of surfboard wax on them.

            • 0
    • skillet on 08/06/2026 - 14:35

      What do most people buy spray lube for? I really don't like spray lubes. It spew everywhere atomise in the air and make big mess. Yes the pressure forces the oil into tricky area but always cover with cloth to prevent recoil in your face and eyes. It's also a big waste spray when you can drop a some little amount and work it in. Less is more. Too much oil then you find your part attracting too much dirt.

      Anyway if you are on Aussie land you should be using MX3 not the WD40 crap. MX3 is a light lubricant but a true and honest lube. The MX3 also smell less toxic. There's even a food grade version MX3FG that you can eat.

      • 0
      • PCHammond on 08/06/2026 - 17:15

        Convenience
        Speed
        The satisfaction of the "pssscht pssscht"

        • 1
      • DarwinBoy on 08/06/2026 - 20:32

        Kids bike chains and other moving bike parts is a big one for me.
        Also padlocks once a year or so. I've usually got tools that I bring back to life after the missus leaves them outside in the rain.

        • 0
  • SuperHanz on 07/06/2026 - 17:34

    I've been spraying this all up in my evinrude 15, keeps it minty fresh😆

    • 1
    • Igaf on 07/06/2026 - 17:37

      Rude product then?

      • 0
  • NevC on 07/06/2026 - 17:35

    MX3 is good stuff. Sh!ts all over WD40.

    • 1
    • skillet on 08/06/2026 - 14:38

      No need to compare. One is honest Aussie made lube the other one is for the useless Iran war.

      • 0
  • dufflover on 07/06/2026 - 17:54

    Is this just a "better WD-40" or are there any applications where chemically it is the best choice?
    I've already got the bulk 4L WD-40 liquid refills, some leftover PTFE spray lube, silicone spray lube, lithium grease spray for the metal stuff, and an ol 3-in-1 general purpose from way back for the door hinges and what not. So as good as it's sounding over WD-40, if it's not covering any new bases I better use what I've already bought first lol 😅

    • 1
    • gakko on 07/06/2026 - 18:01

      The s tier bargain is using what you already got hey.

      Doesn't give the same dopamine rush though.

      • 3
    • PCHammond on 07/06/2026 - 18:22

      I use this as a light oil to prevent rust on my rifles. WD40 is not trusted for this. Similarly I use this to prevent rust and provide light lubrication for other metals around the house.

      Where more lubrication is required, I use the inox grease with PTFE. Where there is exposure to salt water, I use lanox

      I still have wd40 but I rarely use it

      • 2
      • mobzer on 07/06/2026 - 19:07

        Not rifles but I use this stuff and lanolin on my swords and it works like a charm, way better than wd40 for storage. Lanolin for blades that go into leather sheaths and this m3 for stuff that's either bare blade or in wood lined scabbards. Thos is good stuff. Inox seems to have a higher quality than wd-40, even across the various specialist stuff

        • 0
  • ocular on 07/06/2026 - 18:04

    I believe there is InoxM3 FG (yellow cap)and Inox Rubber Grease FG which opens up some interesting possibilities? FG= food grade.

    • 0
  • tap on 07/06/2026 - 19:00

    This 300ml works out to be $23.3/L or you can buy 5L for $61.22 ($12.25/L) *pickup from alliedautoonline in Melb or stick with Bunnings 5L $77.85 (15.57/L).

    • 2
    • ocular on 07/06/2026 - 20:04

      Alliedautoonline also Brisbane Acacia Ridge for 5L bulk which does seem a good bulk price and includes a spray bottle.

      • 0
  • bdl on 07/06/2026 - 19:21

    lube it well

    • 0
    • Click_It on 07/06/2026 - 20:32

      Not for human parts

      2020 me: that's what she said

      • 0
  • hippyhippy on 07/06/2026 - 19:39

    Would you use this to try and loosen a stick window hinge?

    • 0
    • Igaf on 07/06/2026 - 20:10

      Probably. One of the penetrating sprays like WD40 or figarow's RP7 should also work on a metal hinge.

      • 0
  • figarow on 07/06/2026 - 19:46

    RP7 is my go to for budget spray, wonder how this compares.

    • 1
  • Click_It on 07/06/2026 - 20:28

    Haven't seen an inox deal for awhile. Will get some

    • 0
  • PerthectDeal on 07/06/2026 - 22:29

    Any good for garage door tracks/rollers or should I stick with silicon spray?

    • 1
  • bitcoinorbust on 07/06/2026 - 22:40

    i use the cheap boston stuff from bunnings works fine just as good as overpriced wd40

    • 1
  • sun sunny on 08/06/2026 - 02:23

    Free delivery with onepass, thanks op

    • 1
    • wiz187 on 09/06/2026 - 13:01

      Thanks for this comment. Just grabbed 2 with free delivery. None available in any stores near me so happy with this idea.

      • 0
    • wiz187 on 09/06/2026 - 17:12

      Unfortunately, just cancelled my order. No local stock available.

      • 0
  • bumpyhead on 08/06/2026 - 10:02

    just wondering how multipurpose this can be?

    • 0
  • FrugalNotStingy on 08/06/2026 - 10:38

    Thanks OP. Bought one even I am still finding a use for it.

    • 0
  • Rally Dave on 08/06/2026 - 12:30

    If you work on lots of outdoor or marine equipment, you can buy this as liquid and use a spray pack. Brilliant for properly coating and/or soaking things. Used to be able to get it in 2L, 5L and 20L (possibly drums as well). I do not work in that area anymore, but as good as it is as an aeorosol, it is even better in a liquid spray and cheaper overall.

    • 1
  • Rrpnothanx on 08/06/2026 - 14:11

    Onepass made Uber deliver to me today.
    The delivery charge wiuldbhave cost more than the item itself. Good grab fro $7

    • 0
  • ULT on 08/06/2026 - 14:49

    is this any good for garage doors? currently using WD-40 Specialist Silicone Spray Lubricant for the rotating parts which eliminates the noise for a few months, would prefer something that lasts a bit longer

    • 1
    • Bluey123 on 09/06/2026 - 10:26

      Also want to know

      • 0
  • tunzafun001 on 09/06/2026 - 18:39

    $9.75 at Marion SA.

    Rp7 is $7.49 usual price.

    • 0
  • HerpinDerp on 09/06/2026 - 19:22

    9.95 dyanamic priced at my local bunnings.

    I realised a different location (Alexandria Sydney) was $7. They did honour the $7 but bunnings is becoming more and more evil.

    • 0
  • Naigrabzo on 16/06/2026 - 10:00

    This or Wax for your bicycle chain? #Waxfan

    • 0
  • AS1253 on 22/06/2026 - 13:59

    Forgive my ignorance, is this well suited for home door hinges and car door hinges? Thank you.

    • 1
  • Spending2Much on 24/06/2026 - 12:32

    Still $7 at my local.bunnings

    • 0
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