Copper and Brass Corrosion Inhibitor copper, brass, and bronze play an important role in industrial equipment because they offer good conductivity, heat transfer, machinability, and resistance to many working fluids. Even so, these metals can still stain, tarnish, or corrode when they meet moisture, salts, aggressive chemicals, or contaminated lubricants.

In Qatar, equipment often works under high temperatures and humid coastal conditions. Metalworking fluids may also remain in service for long periods, while hydraulic oils and lubricants can collect moisture or process contaminants. These conditions may gradually affect copper tubes, brass fittings, bronze components, bearings, valves, and precision parts.

G-29 is a liquid Copper and Brass Corrosion Inhibitor developed for use in industrial fluids. It is an alkanolamine salt of Toly triazole and is mainly used in metalworking-fluid formulations. It can also protect copper, brass, bronze, ferrous metals, and other compatible non-ferrous metals. The product dissolves in oil and can work in suitable oil-in-water emulsions.

Nassguard supplies G-29 in Doha and across Qatar for metalworking fluids, lubricating oils, hydraulic fluids, steam-turbine oils, and other industrial formulations requiring yellow-metal protection.

What is G-29?

G-29 is a concentrated liquid inhibitor made for copper, brass, bronze, and related metal surfaces.

Unlike powdered triazole additives that require separate dissolving, G-29 comes as a ready liquid concentrate. This makes it easier to introduce into oils, emulsions, lubricants, and metalworking formulations.

The active chemistry reacts with copper-containing surfaces and helps create a protective barrier. That barrier reduces contact between the metal and substances that may trigger oxidation, staining, or tarnish.

G-29 also helps protect mixed-metal systems. Metalworking equipment may contain steel, copper, brass, and bronze parts in the same circuit. A fluid that protects only one metal may leave other components vulnerable. G-29 supports both yellow metals and compatible ferrous surfaces.

The product is oil-soluble, yet formulators can also use it in suitable oil-in-water emulsions. This gives it value in cutting fluids, lubricating oils, hydraulic systems, and turbine applications.

Uses of G-29 Copper and Brass Corrosion Inhibitor

• Metalworking-fluid formulations
• Cutting and grinding fluids
• Lubricating oils
• Hydraulic fluids
• Steam-turbine lubricating oils
• Oil-in-water emulsions
• Copper and brass component protection
• Bronze-bearing protection
• Industrial machinery lubricants
• Precision-machining fluids
• Compressor lubricants
• Circulating-oil systems
• Gear and bearing lubricants
• Temporary process fluids
• Mixed-metal industrial systems
• Fluid concentrates for metalworking
• Maintenance oils
• Industrial oil formulations
• Yellow-metal protection additives
• Ferrous and non-ferrous fluid systems

Key Features of Copper and Brass Corrosion Inhibitor

• Developed for copper and brass protection
• Suitable for bronze components
• Supports compatible ferrous metals
• Supplied as a liquid concentrate
• Based on tolyltriazole chemistry
• Uses an alkanolamine salt formulation
• Oil-soluble
• Suitable for oil-in-water emulsions
• Designed mainly for metalworking fluids
• Useful in lubricating oils
• Suitable for hydraulic-fluid formulations
• Can be used in turbine oils
• Helps reduce tarnish and staining
• Supports mixed-metal systems
• Works at relatively low concentration
• Easy to blend into compatible fluids
• High non-volatile content
• Available in industrial packaging
• Suitable for repeated production batches
• Useful for fluid formulators and maintenance teams

How Does G-29 Work?

Copper and brass can react with oxygen, moisture, acids, sulphur compounds, and salts present in an industrial fluid. The result may appear as dark staining, surface deposits, green corrosion products, or loss of the original finish.

G-29 introduces tolyltriazole-based inhibitor chemistry into the fluid. Once the treated oil or emulsion reaches the metal, the inhibitor associates with the copper-containing surface and helps form a protective layer.

This layer slows the reactions that cause oxidation and tarnishing. It also helps protect parts when the fluid contains small amounts of moisture or contamination.

The final result depends on several operating factors:

• G-29 concentration
• Base-oil chemistry
• Water content
• Emulsion stability
• Fluid pH
• Operating temperature
• Metal composition
• Chloride contamination
• Exposure time
• Other additives in the formulation

A small blending and compatibility trial should take place before full production use. Formulators should check fluid clarity, stability, corrosion protection, foaming, residue, and compatibility with seals or coatings.

Applications Across Qatar and Doha

Metalworking Workshops-Machining companies can add G-29 to compatible cutting, grinding, and forming fluids where copper, brass, bronze, or mixed-metal parts require added protection.

Oil and Gas Maintenance-Workshops serving oil and gas facilities may use copper alloys in valves, fittings, instruments, bearings, and specialised components. Suitable lubricants and process fluids can help limit corrosion during maintenance and operation.

Hydraulic Systems-Hydraulic circuits may contain brass connectors, bronze bushes, copper lines, and steel parts. G-29 can support compatible hydraulic-fluid formulations used in these mixed-metal systems.

Power Generation-Steam turbines and auxiliary machinery use lubricating oils that must protect bearings, fittings, and other metal components under continuous operation.

Manufacturing Plants-Factories can include G-29 in metalworking-fluid concentrates used during cutting, drilling, milling, forming, and component production.

Marine Operations-Salt-bearing air and moisture can affect copper and brass parts in marine equipment. G-29 may support compatible lubricants or process fluids used around such components.

Automotive and Equipment Workshops-Repair facilities can use approved fluids containing G-29 when servicing components made from copper alloys, bronze, steel, and other metals.

Lubricant Formulation-Industrial lubricant producers can incorporate the product into suitable oil-based formulations where yellow-metal corrosion control is required.

Turbine Oil Systems-The product can support steam-turbine lubricating oils that contain copper, brass, bronze, or ferrous components in the circulation system.

Industrial Fluid Suppliers-Fluid formulators in Doha can use G-29 to develop products for machining, hydraulic, lubrication, and maintenance applications.

Technical Specifications of Copper and Brass Corrosion Inhibitor

Certifications, Standards and Compliance

The standards below may support the evaluation of copper corrosion and industrial fluid performance. They should not automatically be described as product-specific certification for every G-29 batch.

• ASTM D130 – Copper Strip Corrosion Test
• ASTM D665 – Rust-Preventing Characteristics
• ISO 9001 – Quality Management Systems
• ISO 14001 – Environmental Management Systems

Customers should request the latest Technical Data Sheet, Safety Data Sheet, Certificate of Analysis, and any project-specific test records before approval.

Why Choose G-29 from Nassguard?

• Available in Doha and across Qatar
• Designed for copper and brass protection
• Suitable for bronze components
• Supports compatible ferrous metals
• Useful in metalworking fluids
• Suitable for lubricating oils
• Can be used in hydraulic fluids
• Suitable for steam-turbine oils
• Oil-soluble liquid concentrate
• Works in suitable oil-in-water emulsions
• Effective at low treatment levels
• Easy to blend into approved formulations
• Industrial packaging options available
• Liquid totes and bulk supply available
• Technical documents can be arranged
• Support available for quantity planning
• Suitable for lubricant formulators
• Useful for workshops and factories
• Supports repeat industrial orders
• Delivery available throughout Qatar

Nassguard can help customers review the fluid type, metal combination, package size, estimated consumption, and documentation requirements before ordering.

Frequently Asked Questions

1. What is G-29?
G-29 is a liquid Toly triazole-based inhibitor for copper, brass, bronze, and compatible metals.

2. Which metals does G-29 protect?
It protects copper, brass, bronze, and selected ferrous and non-ferrous metals.

3. Is G-29 oil-soluble?
Yes, G-29 dissolves in suitable oil-based formulations.

4. Can it be used in oil-in-water emulsions?
Yes, it can be used in compatible oil-in-water systems.

5. Is G-29 suitable for metalworking fluids?
Yes, metalworking-fluid formulations are one of its main applications.

6. Can it be added to hydraulic oils?
Yes, it may be used in compatible hydraulic-fluid formulations.

7. Can G-29 be used in turbine oils?
Yes, steam-turbine lubricating oils are listed among its suggested uses.

8. What is the usual concentration?
A common final concentration range is approximately 50–1,000 ppm.

9. What colour is G-29?
It normally appears as a clear to hazy amber liquid.

10. Should G-29 be protected from freezing?
Yes, storage conditions should prevent the product from freezing.

11. What packaging sizes are available?
It is supplied in 19-litre pails, 208-litre drums, liquid totes, and bulk.

12. Where can I buy G-29 in Qatar?
Nassguard supplies G-29 in Doha and throughout Qatar.

Conclusion

Copper, brass, and bronze may still tarnish or corrode when industrial fluids contain water, salts, acids, or process contamination. This can affect the appearance and service life of fittings, bearings, tubes, valves, and precision components.

G-29 provides targeted protection through a liquid tolyltriazole-based formulation. It blends into compatible oils and oil-in-water emulsions, making it useful for metalworking fluids, hydraulic oils, lubricants, and steam-turbine oils.

The product can also support mixed-metal systems containing copper alloys and ferrous components. Its concentrated liquid form simplifies blending and allows formulators to adjust the dosage according to the application.

Nassguard supplies G-29 Copper and Brass Corrosion Inhibitor in Qatar and Doha for lubricant manufacturers, metalworking companies, engineering workshops, power facilities, marine operations, and industrial maintenance applications.