

【One‑sentence Positioning】
Water‑soluble rust inhibitor dominated by organic amines; serves as short‑term rust inhibitor for steel & iron or rust‑performance booster for cleaners; rust‑protection period ranges from several days to weeks; forms transparent protective film without altering appearance or dimensions; water‑dilutable, economical and eco‑friendly.
【Core Tags】
Water‑based rust prevention | Organic‑amine base | Rust‑performance booster | Transparent thin‑film | Dilutable | Non‑flammable & non‑explosive | Easily removable | Short‑term rust protection
I. Industry Background: Inter‑Process Rusting — An Underestimated Cost Black Hole in Manufacturing
During transfer and storage between machining, cleaning and assembly, metal components are often exposed to humid air for periods ranging from several hours to weeks. Ferrous metals such as steel and cast iron are highly prone to rust. Rust impairs visual appearance, damages mating‑surface precision and triggers failures in subsequent machining and assembly. Consequences include re‑washing rework or full‑batch scrap. Rust‑induced rework constitutes a major hidden loss for mechanical manufacturers.
Traditional rust‑prevention solutions mostly adopt rust‑preventive oil. Although offering long‑term protection, oily films are sticky and require thorough degreasing before downstream processes, bringing complicated workflows and higher costs. Oil residues also contaminate cleaning bath fluids. For inter‑process short‑term protection lasting merely several days, anti‑rust oil provides excessive protection at considerable expense.
PP‑350 is a water‑based rust inhibitor engineered for inter‑process short‑term rust prevention. Dominated by organic amines, it is water‑dilutable and delivers rust‑protection for days to weeks. It forms a transparent protective film without changing part appearance or dimensions, facilitating subsequent inspection and machining. For most workpieces, residues can be removed simply by clean water or alkaline cleaning agents prior to next processes. Water‑diluted, non‑toxic, odor‑free, non‑flammable and non‑explosive, it achieves low overall operating cost.
II. Product Description
PP‑350 is a water‑soluble rust inhibitor based on organic amines. It functions as short‑term rust inhibitor for steel and iron, or as a booster to enhance the rust‑preventive performance of cleaners. Widely deployed across manufacturing cleaning workflows, it provides reliable protection for ferrous metals and effectively extends rust‑protection duration.
Diluted with water according to required protection duration and storage conditions for cost‑effective operation. A transparent protective film forms on metal surfaces without altering appearance or dimensions for convenient inspection and further processing. Residues can be readily removed by clean water or alkaline cleaners for most parts before subsequent operations. It is applicable to automotive components, machined parts, standard fasteners, molds, hand tools, bearings, metal sheets and tubes, for cleaning and rust‑protection of central‑system machine tools, standalone machines and contaminated machine‑tool zones.
III. Technical Parameters
‑ Product Name: PP‑350 Water‑Based Rust Inhibitor
‑ Product Type: Water‑soluble rust inhibitor (main component: organic amines)
‑ Appearance: Liquid
‑ Dilution Medium: Water (dilutable for use)
‑ Protected Materials: Ferrous metals including steel and iron
‑ Rust‑Protection Duration: Several days to weeks (depends on dilution ratio and storage conditions)
‑ Protective‑Film Property: Transparent film formed on metal surface; no impact on appearance and dimensions
‑ Removal Method: Removed by clean water or alkaline cleaning agents for most workpieces before downstream processes
‑ Safety Property: Water‑diluted; non‑toxic, non‑irritating odor, non‑flammable & non‑explosive
‑ Application Methods: Immersion, spraying, brushing; no sophisticated equipment required
‑ Typical Application: Short‑term rust inhibitor; rust‑performance booster for cleaners
Note: Above‑listed parameters are for reference only. Official specifications shall subject to the supplier’s latest datasheet and factory inspection reports.
IV. Key Performance Indicators
‑ Rust‑Protection Duration: Adjustable from several days to weeks
‑ Protective Film: Transparent; no influence on appearance and dimensions
‑ Dilutable Operation: Proportional dilution for low comprehensive cost
‑ Safety: Non‑toxic, non‑irritating odor, non‑flammable & non‑explosive
‑ Easy Removal: Strippable by clean water or alkaline cleaning fluids
‑ Application Modes: Immersion / spraying / brushing available
‑ Dual‑Functionality: Short‑term rust inhibitor + rust‑performance booster for cleaners
Note: All above data is obtained under standard test conditions. Actual performance may vary depending on workpiece material, contamination severity and environmental conditions.
V. Application Scenarios
PP‑350 is widely used in manufacturing cleaning workflows for ferrous‑metal protection. Typical scenarios include:
‑ Inter‑process & post‑cleaning rust prevention for automotive components
‑ Short‑term rust‑protection for machined parts
‑ Rust prevention for standard fasteners, molds and hardware tools
‑ Corrosion protection for bearings, metal sheets and tubes
‑ Cleaning and rust‑protection for central‑system machine tools
‑ Cleaning and rust‑protection for standalone machines and contaminated machine‑tool zones
‑ Auxiliary use as rust‑performance booster together with cleaners
Supports immersion, spraying and brushing; simple‑operation without complex equipment.
VI. Product Advantages
1. Efficient rust‑protection
Excellent anti‑rust performance. Protection duration adjustable from days to weeks via dilution ratio and storage environment, matching inter‑process protection demands flexibly.
2. Eco‑friendly & safe
Water‑diluted formula; non‑toxic, non‑irritating, non‑flammable & non‑explosive. Eliminates health and fire risks associated with solvent‑based rust preventives.
3. Cost‑effective usage
Dilutable proportionally according to target service life. Lower total cost versus rust‑preventive‑oil solutions and simplifies process steps.
4. Simple operation
Multiple application options: immersion, spraying, brushing. No specialized hardware required for easy on‑site deployment.
5. Transparent protective film
Forms invisible transparent film on metal surfaces without altering geometry or visual appearance, convenient for inspection and follow‑up machining.
6. Easy‑to‑remove film
Residues are removable by plain water or alkaline cleaners for most parts, compatible with downstream electroplating, welding and assembly operations.
7. Extended rust‑protection as booster
When used together with cleaners, it greatly prolongs post‑cleaning rust‑protection time and reduces rework caused by rusting.
8. Broad application scope
Suitable for automotive components, machined parts, standard fasteners, molds, hardware tools, bearings, metal sheets, tubes and many other metal articles.












