01
A dry finish. A cleaner handoff.
The volatile carrier evaporates to leave a dense protective film. The thin film is non-tacky with little oily feel, suitable for parts that need clean handling.
MOERY · KG-3 · FEATURED PRODUCT
Fast-drying
rust preventive oil
Thin-film protection.
A non-tacky finish.
Protect steel, cast iron and copper parts through storage and before the next process. KG-3 forms a thin, fast-drying film with little oily feel, and is easy to remove with alkaline cleaning.
- Steel
- Cast iron
- Copper
- Alkaline-removable film
Made by Nanjing Moery Chemical Co., Ltd. · ISO 9001:2015 quality management
UNPACKAGED · REFERENCE1 year
Reference protection period without packaging.
PLASTIC-BAG PACKED · REFERENCE3–5 years
Validate the bag, seal and storage environment.
Protection is a process: a clean, dry surface, a fully formed film and suitable packaging. Reference periods are not unconditional guarantees.
Plan a sample trial ↗DESIGNED AROUND YOUR WORKFLOW
Protection that fits
the way you work.
Rust protection should consider handling, packaging and the process that follows. KG-3 combines a fast-drying film with a practical removal route.
02
Protection through storage.
Reference protection periods are one year without packaging and 3–5 years with plastic-bag packaging. Validate the target period against your surface condition, film formation, sealing and storage environment.
03
Ready for the next process.
The film is easily removed in alkaline solution. Establish a cleaning trial before painting, plating or assembly to confirm the next process requirements.
FROM APPLICATION TO TRIAL
See where KG-3
could fit your process.
Three application examples for discussion and trial validation; they are not completed customer case studies.
APPLICATION EXAMPLE / 01
From the final machining step to warehouse release.
Steel shafts, sleeves and machined components
Discuss a steel-parts trial- THE CHALLENGE
- Cleaned parts need rust protection while awaiting assembly or shipment, with a finish that is practical to handle and pack.
- THE PROPOSED PROCESS
- Clean → remove all water → dip in KG-3 → drain surplus oil → allow the film to form completely → pack to the agreed storage plan.
- WHAT TO VERIFY
- Trial representative parts. Record surface cleanliness, complete coverage, handling feel and changes during the planned storage interval.
APPLICATION EXAMPLE / 02
Protect the surface you want customers to see.
Copper fittings and machined copper components
Discuss copper compatibility- THE CHALLENGE
- Visible copper surfaces need a protective process that also considers appearance and compatibility with subsequent cleaning or assembly.
- THE PROPOSED PROCESS
- Confirm the actual copper grade and any surface treatment → trial on clean, dry parts → use a consistent dip / drain / dry cycle → package after full film formation.
- WHAT TO VERIFY
- Compare pre-treatment and post-treatment appearance under the same lighting. Check surface changes, film removal and fit with the actual downstream process.
APPLICATION EXAMPLE / 03
Make the film and the packaging work together.
Steel or cast-iron spares held in storage
Build a storage trial plan- THE CHALLENGE
- Longer storage intervals require more than selecting an oil: cleanliness, complete drying, packaging integrity and inspection planning all matter.
- THE PROPOSED PROCESS
- Verify substrate compatibility → clean and remove water → dip and drain → dry fully → bag and seal → define storage location and inspection intervals.
- WHAT TO VERIFY
- Use the 3–5 year reference period with plastic-bag packaging as a starting point, then validate the actual environment and packaging. Consider KG-8 / KG-9 for other long-term or export requirements.
KNOW WHAT YOU ARE SPECIFYING
The details
behind the film.
Key product properties to support product selection and trial planning.
A flash point of 64 °C falls within the 61–68 °C range. The unit for the viscosity value at 25 °C is unspecified.
| Property | Value | Method / source |
|---|---|---|
| Appearance | Light yellow | Visual |
| Flash point | 61–68 °C | GB/T 261 |
| Application temperature | −10 to 40 °C | SH/T 0211 |
| Salt spray · No. 45 steel | 18–24 h | SH/T 0081 |
| Film thickness | 50 µm | SH/T 0105 |
| Viscosity at 25 °C | 2.2–4.3 | Unit not specified |
| Specific gravity | 0.80 ± 0.01 | MSDS |
| Water solubility | Insoluble | MSDS |
Salt-spray hours are laboratory references and cannot be converted directly into field protection life. Substrate, surface preparation and application conditions matter.
GOOD PROTECTION STARTS WITH GOOD APPLICATION
Four steps.
One consistent process.
Standardize your application before scaling. Dipping is recommended; drain and allow the film to form fully before packaging.
- 01
Clean and remove water
Start with clean, water-free parts. Remove all water before application.
- 02
Apply a consistent film
Dip, brush or spray; dipping is economical and reliable. Do not use a rag to apply oil.
- 03
Drain and let it dry
Let surplus oil drain and allow complete evaporation and film formation before packaging. Do not spin-dry.
- 04
Pack for the conditions
Choose packaging around storage conditions. Record your process and inspect samples against your target protection interval.
Do not spin-dry. Do not apply with a rag. Do not oil parts above 40 °C. Keep the work area ventilated and follow the supplied MSDS for protection, storage and disposal.
DIRECT FROM THE SOURCE
Read it. Check it.
Trial it on your parts.
Download the original Chinese documents supplied for this product. Request current application and safety guidance before production use.
TDS DOCX · 中文
KG-3 technical data
Performance, substrates, application steps and technical parameters.
2025.09.01 Download original ↓MSDS DOCX · 中文KG-3 material safety data
Handling, ventilation, storage, personal protection and disposal.
2025.03 · Rev. 3 Download original ↓For classification, transport and compliance decisions, consult the current safety documentation and local requirements.
BEFORE THE FIRST TRIAL
Questions,
answered.
Which metals can KG-3 protect?
KG-3 is suitable for steel, cast iron and copper parts, including machined components and spare parts. Alloy composition, surface treatments and residual cleaners can affect compatibility. Trial representative parts and check appearance, coverage and the next process; ask our engineers before using it on other metals.
How long can KG-3 protect a part?
The reference protection period is one year without packaging and 3–5 years with plastic-bag packaging. Actual performance depends on surface cleanliness, complete film formation, bag sealing, humidity and temperature changes. Set an inspection schedule and validate the target period under your own storage conditions.
What does 18–24 hours of salt-spray resistance mean?
The reference result is 18–24 hours on No. 45 steel using SH/T 0081. Salt spray is an accelerated laboratory test, not a direct conversion to storage or sea-freight life. Compare results only when the substrate, surface preparation, film and test method are comparable, then verify the complete packing process.
How should KG-3 be applied?
Clean the parts and remove all water. Apply by dipping, spraying or brushing; dipping is recommended where practical. Drain excess oil and allow the film to form fully before packing. Do not apply with a rag or spin-dry. Check recesses and contact points for complete coverage.
Can KG-3 be applied to wet or hot parts?
Parts must be clean and water-free, and must not exceed 40 °C when oiled. The application temperature range is −10 to 40 °C. Allow hot parts to cool and dry fully; check blind holes and recesses for trapped water before treatment.
Can the film be removed before the next process?
The film is readily removed in alkaline cleaning solution. Before painting, plating, welding or other surface-sensitive processes, run a cleaning trial on representative parts. Check cleaner compatibility, concentration, washing and rinsing conditions, and the cleanliness required by the next process.
How do I request a sample and quotation?
Tell us the metal and part dimensions, surface condition, application method, target protection period, storage or shipping conditions and estimated use. Photos and details of the next process are helpful. We can discuss grade selection, sample quantities and a trial plan before quotation.
TRY IT ON THE PART THAT MATTERS
Your parts.
Our next conversation.
Tell us the metal, process and protection period. Discuss a KG-3 sample, a quotation or a practical trial plan with MOERY.
- Confirm substrate and process fit
- Discuss samples and estimated use
- Review packaging and trial criteria
Prefer a direct conversation?+86 186 5164 9889nanjingmol@163.comMr. Yuan · Nanjing Moery Chemical Co., Ltd.
KG-3
Request a sample or a quotation
Required: name, company, email and consent.