Are you troubled by these problems related to cleaning the copper materials?
The newly washed copper parts soon oxidized and turned black, dark and discolored.
The traditional cleaning agents either corroded the workpieces or produced excessive foam, making rinsing difficult.
Our product can completely solve these problems!
Case Details
1. Problem (Traditional Copper Alloy Cleaning Industry Pain Points)
Conventional copper cleaning agents bring multiple quality, environmental, safety and production obstacles to copper processing factories, refrigeration equipment, auto parts and electronics manufacturers:
- Ordinary acidic copper cleaners easily cause copper surface oxidation, discoloration, tarnish and dark spots after cleaning, destroying the original metallic luster of brass, red copper and bronze; extra anti-tarnish passivation procedures are required, increasing production steps and labor costs.
- Common degreasers lack targeted copper anti-corrosion components; long-time soaking leads to surface etching and dimensional deviation of precision copper parts, raising product rejection rate.
- High-foam copper cleaners leave invisible residue, watermarks and flux film on tiny gaps of copper terminals, copper pipes and precision connectors, resulting in poor conductivity and defective subsequent welding/assembly processes.
- Many mainstream copper cleaners contain heavy metals, chromate, chloride, phosphorus and nitrite, failing to meet RoHS and global environmental discharge standards, bringing export compliance risks and sewage treatment pressure.
- Single-function cleaners only remove oil stains but cannot eliminate composite contaminants including hand sweat, dust and polishing wax; multiple cleaning tanks need to be configured, occupying workshop space and increasing chemical inventory costs.
- Strong corrosive cleaners cannot be applied to thin-walled copper tubes for air conditioners, solar energy and fire-fighting valves, causing pipeline thinning and hidden leakage risks.
- Non-biodegradable chemical waste liquid generates high sewage treatment operating costs and long-term environmental inspection penalties for manufacturers.
Ruibao RSB-107 Neutral Copper Cleaner is an independently developed eco-friendly water-based cleaning solution. It integrates efficient degreasing and exclusive copper anti-tarnish protection into one single process, fully solving all copper alloy cleaning pain points and realizing residue-free, non-corrosive, eco-friendly mass production cleaning.
2. Material (Product Formula, Physical Parameters & Applicable Copper Substrates)
2.1 Core Raw Material Composition (Official MSDS Document)
RSB-107 is a neutral water-based compound cleaner blended with composite surfactants and special copper corrosion inhibitors:
- Fatty alcohol polyoxyethylene ether (CAS:68131-39-5): 12 ~ 16%
- Alkyl polyol: 6 ~ 8%
- Benzotriazole (copper anti-tarnish agent, CAS:95-14-7): 0.5 ~ 1.0%
- Oleic acid: 2 ~ 4%
- Modified polyethanolamine: 4 ~ 6%
- Deionized water (CAS:7732-18-5): Balanced remainder
Free of heavy metals, phosphorus, chromate, chloride and nitrite; biodegradable neutral formula; classified as non-dangerous goods under EU CLP Regulation (EC) No 1272/2008, non-flammable and explosion-free.
2.2 Applicable Copper Materials & End Products
Copper substrates: Brass, red copper, bronze and all copper alloy workpieces
Covered industrial application scenarios:
- Precision hardware: Copper screws, nuts, pipe joints, precision connectors
- Electronic & electrical products: Copper busbars, terminals, conductive copper sheets, contact pins
- Auto parts: Copper oil pipelines, sensor copper components, brass valve bodies
- Machinery & mold: Copper mold inserts, copper electrodes
- Refrigeration & solar equipment: Thin copper tubes for air conditioners, solar heat exchange pipes
- Fire-fighting equipment: Copper valves and copper fittings
2.3 Physical & Chemical Index Parameters (Tested at 25℃, 3% Aqueous Solution)
| Test Item |
Standard Index |
| Appearance |
Pale yellow transparent liquid |
| Odor |
Odorless |
| Specific Gravity |
1.02 ~ 1.04 |
| Cleaning Power (60℃) |
≥95% |
| pH Value (3% aqueous solution) |
7.0 ~ 8.0 (Neutral) |
| Surface Tension |
≤30 mN/m |
| Corrosiveness |
Non-corrosive to all copper materials |
| Rinsing Performance |
No visible cleaner residue after washing |
| High-Temperature Stability |
Uniform & no stratification after 6h at (60±2)℃ |
| Low-Temperature Stability |
Uniform & no stratification after 24h at (-5±2)℃ |
| Refractive Index |
27.0 ~ 29.0 |
2.4 Product Safety Attributes (MSDS Specification)
Neutral water-based non-flammable product with zero explosion risk; only mild skin degreasing occurs under long-time direct contact; no toxic volatile substances, safe for long-term continuous workshop operation.
3. Soil (Composite Contaminants Fully Removed in One Step)
RSB-107 features strong penetration and emulsifying capacity to strip all mixed dirt on copper alloy surfaces:
- Machining cutting fluid, drawing oil, stamping oil and anti-rust grease
- Fingerprints, hand sweat residues and organic perspiration stains
- Workshop dust, metal powder and particulate sediment
- Welding flux residue, polishing wax residual film
- Light oxide layer and surface dark spots formed during processing
4. Cleaning Process (Standard Mass Production Operation Flow)
4.1 Optional Cleaning Equipment
- Ultrasonic cleaning (best effect for tiny precision copper terminals and connectors)
- Hot soaking tank with bubbling circulation or workpiece shaking agitation
- Manual scrubbing (for small-batch complex copper fittings)
- Spray washing (for large copper pipe and valve parts)
4.2 Standard Process Parameters
- Dilution Concentration: Prepare 5% ~ 10% aqueous solution with RSB-107 stock liquid
- Optimal Operating Temperature: 50℃ ~ 60℃ for maximum cleaning efficiency
- Standard Cleaning Duration: 5 ~ 10 mins (adjust based on dirt thickness and workpiece wall thickness)
4.3 Complete Post-Cleaning Workflow
Copper workpiece soaking / ultrasonic cleaning → deionized water full rinsing → air blow drying / oven drying → sealed packaging & storage / follow-up welding, electroplating and assembly
4.4 Tank Liquid & Daily Operation Management Rules
- Place copper workpieces separately without overlapping to ensure full contact with cleaning fluid;
- Regularly supplement RSB-107 stock liquid according to on-site cleaning performance; replace the entire tank liquid if degreasing capacity cannot recover after replenishment;
- Operators must wear work uniforms and acid-alkali resistant latex gloves to avoid prolonged skin contact;
- Store separately from strong acid, strong alkali and strong oxidants; avoid direct sunlight and high-temperature storage environments.
5. Test Standard (Physical, Environmental & Production Compliance Criteria)
- Physical Index Test Standard: 3% aqueous solution tested under constant temperature 25℃, fully meet appearance, specific gravity, pH and stability indicators specified in MSDS & product manual;
- Copper Anti-Corrosion Standard: No discoloration, tarnish, oxidation or surface etching on brass, red copper and bronze after complete cleaning cycle; original copper luster fully retained;
- Residue & Rinsing Standard: No visible watermarks, flux film or chemical residue after deionized water rinsing; no negative impact on electrical conductivity and welding performance;
- Ecological Environmental Standard: Phosphorus-free, heavy metal-free, chloride-free and nitrite-free biodegradable formula, fully comply with RoHS and industrial wastewater discharge regulations;
- Safety Classification Standard: Non-dangerous goods, non-flammable, low occupational health hazard for workers;
- Wastewater Disposal Standard: Cleaning waste liquid must be pre-treated by factories to meet local industrial emission standards before drainage, or delivered to qualified environmental protection institutions for centralized disposal.
6. Result
- Ultra-High Cleaning Efficiency: Detergency ≥95% at 50–60℃, rapidly remove oil, sweat, dust and wax composite dirt within 5–10 minutes, shorten production cycle and boost workshop throughput;
- Exclusive Copper Anti-Tarnish Protection: Built-in benzotriazole special copper protective factors form a thin anti-discoloration film during cleaning; one-step cleaning & anti-tarnish treatment eliminates extra passivation processes;
- Low-Foam Residue-Free Formula: Ultra-low surface tension ensures easy full rinsing without hidden residues in tiny gaps, completely avoid poor conductivity and welding defects of electronic copper parts;
- Universal Compatibility for All Copper Alloys: Safe for thin-walled copper pipes, precision copper electrodes and large brass valves without etching or dimensional loss, covering all copper processing industries;
- Eco-Friendly Low-Risk Formula: Free of all restricted hazardous substances, fully biodegradable waste liquid reduces sewage treatment facility load and eliminates export environmental compliance inspection risks;
- Safe Workshop Production: Neutral non-flammable water-based formula removes fire hazards of acidic and solvent cleaners, lower skin irritation risk for frontline workers;
- Stable Long-Term Tank Service Life: Excellent high & low temperature stability without stratification; extend bath service life via regular stock liquid supplement and cut overall cleaning material consumption cost.
7. Buyer Takeaway
- All-in-One Copper Cleaning Solution: One cleaner adapts to precision hardware, electronics, auto parts, refrigeration and mold industries, unify chemical procurement and reduce inventory management costs;
- Greatly Reduce Product Defect Rate: Non-corrosive anti-tarnish protection keeps copper surface bright; zero residue avoids electrical and welding failures, cut rework and scrap loss;
- Simplify Production Workflow: Integrate degreasing and anti-discoloration functions to cancel independent passivation tanks, save workshop space and labor operating time;
- Safe for Thin-Wall & Precision Copper Parts: Neutral mild formula prevents copper pipe thinning and precision component dimensional deviation, reduce after-sales product leakage and failure complaints;
- Eliminate Global Export Compliance Risks: RoHS compliant formula without heavy metals, phosphorus and nitrite, pass overseas factory environmental audits smoothly;
- Lower Long-Term Environmental Governance Cost: Biodegradable waste liquid reduces factory sewage treatment operating expenses, avoid heavy fines for exceeding pollutant emission limits;
- Stable Storage & Complete Supply Specifications: 25kg / 200kg sealed plastic drums; 2-year shelf life under sealed, cool, dry and ventilated storage; standardized transportation with anti-sun, anti-rain and anti-high temperature protection.
MSDS Safety Emergency Operation Guide
- Skin Contact: Immediately take off contaminated work clothes, rinse skin thoroughly with plenty of clean water; avoid long-time contact to prevent skin dryness and degreasing; seek medical help if persistent discomfort occurs;
- Eye Splashing: Flush eyes with clean water or normal saline for 5 minutes, remove contact lenses before washing; consult doctors if eye redness and pain do not subside;
- Inhalation Exposure: Move the victim to well-ventilated fresh air area and keep unobstructed breathing;
- Accidental Ingestion: Induce vomiting, rinse mouth and send to hospital for professional medical treatment immediately;
- Fire Fighting Measures: The product itself is non-combustible; use foam or CO₂ fire extinguishers for burning plastic packaging barrels, prohibit the use of 1211 fire extinguishers; stand on the upwind side during fire disposal;
- Liquid Leakage Handling: Collect spilled cleaning fluid into sealed containers to prevent inflow into sewers and drainage ditches; never mix contaminated waste liquid with unused original stock liquid.
Storage & Transportation Specifications
- Packaging Specifications: 25kg plastic drum, 200kg plastic drum
- Shelf Life: 2 years under sealed, cool, dry and ventilated storage conditions
- Storage Requirements: Tightly seal bucket lids, store separately from strong acid, strong alkali and strong oxidants; avoid long-term direct sunlight and high temperature environment;
- Transportation Rules: Handle with care to prevent packaging barrel damage; shield products from sun exposure, rain and high temperature during transit;
- Waste Packaging Disposal: Dispose empty plastic drums in accordance with national and local environmental protection laws, prohibit random stacking and dumping.