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Home / Chemicals / Descaling & Rust Removal / CoreKleen Plus
Additive · pH 8–10

CoreKleen Plus

Immersion & UltrasonicIMMERSION& ULTRASONICImmersion & Ultrasonic

The performance additive for CoreKleen HX

Dosed at 1–2% v/v into the CoreKleen HX bath — the second part of the two-part rust, scale and red-dirt remover. Not a stand-alone cleaner.

1–2% v/v alongside CoreKleen HX at 20%Mildly alkaline (pH 8–10), not classified as hazardousSold separately for top-up — 10, 20 and 200 L
From $205.00 ex GST
corekleen plus container
Why It Wins

One bath, two parts

CoreKleen Plus is the second part of the CoreKleen HX system, not a cleaner in its own right. It is the performance additive the HX bath is formulated to run with, dosed at 1–2% v/v alongside HX at 20% v/v in the same ultrasonic or immersion tank.

Mildly alkaline (pH 8–10) and not classified as hazardous, it is supplied separately in 10, 20 and 200 L so the bath can be topped up as the additive is consumed. Run the bath at 50–60 °C and titrate it to keep it at working strength.

The solvent in CoreKleen Plus crazes acrylic, polycarbonate and ABS and softens PVC and nitrile, so fit EPDM or Viton seals in the tank. It goes wherever the HX bath goes — steel, cast iron, stainless, aluminium alloys, zinc and titanium — and never on magnesium.

Applications

Where it earns its keep

Rust, scale, red dirt and grime on industrial components — always dosed with CoreKleen HX, in ultrasonic and immersion tanks.

MiningEnergy & Power
Material caution: Performance additive for CoreKleen HX — dosed at 1–2% v/v alongside the 20% HX make-up, never on its own. Mildly alkaline (pH 8–10) and not classified as hazardous. Its solvent crazes acrylic, polycarbonate and ABS and softens PVC and nitrile — use EPDM or Viton seals.
Temperature & Dose
SWEET SPOT 60 °C40–60 °C20 °C100 °C

Dose: 1–2% v/v, dosed with CoreKleen HX at 20% v/v. The trial sets your exact process values; the TDS governs.

Run It Right

The working process

1 · MAKE UPMake upDose CoreKleen Plus at 1–2% v/v into the CoreKleen HX bath (20% v/v) — never on its own.2 · HEATHeat & degasBring to 50–60 °C, typically 60 °C; degas after fresh fills.3 · CLEANClean30–120 min: about 1 h for light rust, 2 h for heavy — a stronger mix and more heat both speed it up.4 · RINSERinseRinse thoroughly with RO / DI water; the passivated surface holds short-term.
Why Flash Rust Happens

A freshly cleaned ferrous part is chemically active — protective films gone, surface warm and wet, rinse ions acting as electrolyte. Rust bloom can start within the hour. DI water rinsing slows it; protection stops it.

Protect It

Inhibitor in the final rinse before hot-air drying, an Anti-Rust dip between processes, or a water-displacing film for storage — matched to the next process. Tell us what happens next and the protection specifies itself.

The CoreKleen Family

Right product, right job

This Page

Plus — the performance additive

Dosed at 1–2% v/v with HX; never on its own.

Also Consider

CoreKleen HX

The chelating descaler this one doses into

View →
Also Consider

Descale

Phosphoric acid for general descaling duty

View →
KT-CC-CRK-HX-B · supplier code, Part B
Buy CoreKleen Plusex GST
10 L$205.00
20 L$355.00

Delivered within Australia. Outside Australia, request a delivered price.

Complete The Job
Anti-RustProtect the freshly bared metalView & buy →
Compatibility
Mild & carbon steelCarbon steel on the TDS list
Stainless steelSafe in prescribed use
Cast ironCast iron on the TDS list
Aluminium & titaniumAluminium alloys and titanium on the TDS list
Magnesium & soft alloysDo not use
Zinc & galvanisedZinc on the TDS list — removes white rust
Copper & brassChelated on prolonged contact — time-limit and test
Plated finishes (Cd·Cr·Ni)Chrome plating and nickel listed; cadmium — test first
Plastics & rubbersHDPE · PP · EPDM · Viton safe; PVC and nitrile soften; acrylic, polycarbonate and ABS craze
Painted / coated surfacesNot on the TDS list — test first
Per prescribed use — the cleaning trial confirms on your parts; the TDS governs. Full range matrix →
Transport
TransportNot classified as Dangerous Goods for road and rail
No DG freight surcharge applies.
Bath Life

This is not a single-use chemical

A common misconception treats industrial chemistry like dishwater — used once, tipped out. A defended bath of CoreKleen Plus works for weeks of production: weir oil separation and filtration defend the bath, solids leave through the filter, and the chemistry keeps working until genuine depletion.

Change out on evidence, not anxiety: when cycle times stretch or results fade at correct concentration, the bath has earned its retirement. Top-ups at specification carry it between changes.

Keep It In Spec
  • Skim or weir oils continuously — oil load is bath killer #1
  • Filter solids; drain settled sludge from the sump
  • Verify concentration on schedule per the TDS check method
  • Log it — the trend predicts top-ups before cleaning fades
Storage

Drum and bath, both looked after

The Concentrate
  • Handling: Avoid eye contact and repeated or prolonged skin contact.
  • Avoid inhalation of vapour, mist or aerosols.
  • Storage: Store in a cool, dry, well-ventilated place and out of direct sunlight.
  • Store away from foodstuffs.
  • Store away from incompatible materials described in Section 10.
  • Store away from sources of heat and/or ignition.
  • Keep container standing upright.
  • Keep containers closed when not in use - check regularly for leaks.
Compliant with the product SDS.
The Working Bath

Lid the tank between shifts — holds temperature, limits evaporation, keeps dust out.

Idle periods: a warm, stagnant aqueous bath can support biological growth over extended stagnation. Circulate periodically, keep concentration at specification, never leave an open tank standing for weeks.

Extended shutdown: drain to sealed, labelled containers — or schedule changeover for restart day.

Documents & Safety

The paperwork, on the page

Safety Data Sheet (SDS)
CoreKleen Plus — Australian GHS SDS for your chemical register and risk assessments. PDF, 487 KB. Issued 01/01/2026.
View SDSDownload
Technical Data Sheet (TDS)
Kleentek KT-TDS-CRKHX · Rev 1 · issued 8 Sep 2026. Dose, temperature, material compatibility, soils, bath control and transport — the CoreKleen HX system sheet, which covers both components. PDF, 731 KB.
View TDSDownload
Hazard identification
Per Safe Work Australia GHS 7
Compliant with the product SDS — full document available for your chemical register.
PPE & exposure controls
  • National Occupational Exposure Limits: TWA STEL NOTICES ppm mg/m3 ppm mg/m3 (2-Methoxymethylethoxy) propanol 50 308 Sk As published by Safe Work Australia.
  • Product Name: Corekleen Plus Reference No: KT-CC-CKPS Issued: 2026-01-01 Version: 1.1 Safety Data Sheet TWA - The time-weighted average airborne concentration over an eight-hour working day, for a five-day working week over an entire working life.
  • STEL (Short Term Exposure Limit) - the average airborne concentration over a 15 minute period which should not be exceeded at any time during a normal eight-hour workday. ‘Sk' Notice - absorption through the skin may be a significant source of exposure.
  • The exposure standard is invalidated if such contact should occur.
  • These Exposure Standards are guides to be used in the control of occupational health hazards.
  • All atmospheric contamination should be kept to as low a level as is workable.
  • These exposure standards should not be used as fine dividing lines between safe and dangerous concentrations of chemicals.
  • They are not a measure of relative toxicity.
  • If the directions for use on the product label are followed, exposure of individuals using the product should not exceed the above standard.
  • The standard was created for workers who are routinely, potentially exposed during product manufacture.
Compliant with the product SDS — full document available for your chemical register.
First aid
  • If poisoning occurs, contact a doctor or Poisons Information Centre (Phone Australia 131 126, New Zealand 0800 764 766).
  • Inhalation: Remove victim from exposure - avoid becoming a casualty.
  • Remove contaminated clothing and loosen remaining clothing.
  • Allow patient to assume most comfortable position and keep warm.
  • Keep at rest until fully recovered.
  • Seek medical advice if effects persist.
  • Skin Contact: If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.
  • If swelling, redness, blistering or irritation occurs seek medical assistance.
  • Eye Contact: If in eyes wash out immediately with water.
  • In all cases of eye contamination it is a sensible precaution to seek medical advice.
Compliant with the product SDS — full document available for your chemical register.
Storage & handling
  • Handling: Avoid eye contact and repeated or prolonged skin contact.
  • Avoid inhalation of vapour, mist or aerosols.
  • Storage: Store in a cool, dry, well-ventilated place and out of direct sunlight.
  • Store away from foodstuffs.
  • Store away from incompatible materials described in Section 10.
  • Store away from sources of heat and/or ignition.
  • Keep container standing upright.
  • Keep containers closed when not in use - check regularly for leaks.
Compliant with the product SDS — full document available for your chemical register.
Disposal
  • Persons conducting disposal, recycling or reclamation activities should ensure that appropriate personal protection equipment is used, see "Section 8.
  • Exposure Controls and Personal Protection" of this SDS.
  • If possible material and its container should be recycled.
  • If material or container cannot be recycled, dispose in accordance with local, regional, national and international Regulations.
Compliant with the product SDS — full document available for your chemical register.
Transport & dangerous goods
  • Not classified as Dangerous Goods by the criteria of the "Australian Code for the Transport of Dangerous Goods by Road & Rail" and the "New Zealand NZS5433:
  • Transport of Dangerous Goods on Land".
  • MARINE TRANSPORT Not classified as Dangerous Goods by the criteria of the International Maritime Dangerous Goods Code (IMDG Code) for transport by sea.
  • AIR TRANSPORT Not classified as Dangerous Goods by the criteria of the International Air Transport Association (IATA) Dangerous Goods Regulations for transport by air.
Compliant with the product SDS — full document available for your chemical register.
CoreKleen Plus FAQ

Asked at the tank

What dilution and temperature do I run?
1–2% v/v alongside CoreKleen HX at 20% v/v, at 40–60 °C, for 60–90 minutes — and the trial sets your exact process values against your soil. Running richer than specified wastes chemical without cleaning faster. That range is the chemistry’s window — not the whole answer. The substrate sets its own ceiling, and it is usually lower: aluminium and anodised finishes discolour above about 65 °C, zinc and coated parts lower again, and magnesium is governed by pH before temperature. Run at the lower of the two. Bath temperature — chemistry vs substrate →
Why do my parts flash rust after cleaning?
Because the clean worked — protective films are gone and the bare metal is active. Rinse DI, then protect: in-rinse inhibitor, Anti-Rust dip, or a displacing film for storage.
When do I change the bath?
When cycle times stretch, results fade, or filtration stops holding the debris. Drain, clean the tank, refill — never lay fresh solution over settled sludge.
Will it attack my tank?
Acid work runs in tanks specified for it — 316 stainless or polymer, never bare mild steel. Misonics acid-duty tanks are built for exactly this; if you are retrofitting chemistry into an existing tank, confirm the tank material against the card before the first fill.
Can I get the SDS before buying?
Yes — every product ships with its SDS, and documents are available ahead of purchase for your chemical register and risk assessments.

Prove it on your parts

The trial pairs CoreKleen Plus with your components — concentration, temperature and cycle documented before you order a drum. Wrong chemistry for your soil? The trial says so.

Talk to an engineer Back to the Range
Goes with this

Filter bags for this bath

The bag is what keeps the bath working — it takes the soil out before it settles back onto the next load. This is a alkaline bath, and that rules the media in and out before micron rating comes into it.

what we would sendPolypropylene needlefeltAlkaline bath · pH 8 – 11

Rated to pH 14. Start at 25 µm unless something downstream needs finer.

Not polyester. Alkali hydrolyses polyester. It is slower than in caustic, but a bag lives in the tank for weeks. Use polypropylene.
Size 17″ × 16″housing 717Size 27″ × 32″housing 732Size 34″ × 8″housing 408Size 44″ × 14″housing 415
Which size, media and micron — the full guide →
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