Liquid Corrosion Inhibitor Additive water-based coatings are widely used because they are practical to apply and easier to work with than many traditional solvent systems. Still, corrosion can become a problem when the coating comes into contact with steel, aluminium, or galvanized surfaces.

M-118 Liquid Additive helps coating manufacturers deal with this issue from inside the formulation. It is a Liquid Corrosion Inhibitor Additive developed for waterborne coatings, adhesives, waxes, and related products. Manufacturers can blend it into an existing formulation to improve resistance against humidity, salt exposure, flash rust, and corrosion around scratches.

For businesses searching for a Liquid Corrosion Inhibitor Additive in Qatar, M-118 can support coating production, metal finishing, industrial maintenance, adhesive manufacturing, and temporary protection applications. Nassguard supplies M-118 Liquid Additive to customers throughout Doha and Qatar.

What is M-118 Liquid Additive?

M-118 is a waterborne corrosion inhibitor containing a combination of organic and inorganic corrosion-control ingredients. These ingredients work together to improve protection on several industrial metals. According to the product data, M-118 can protect:

• Carbon steel
• Stainless steel
• Aluminium
• Galvanized steel

The manufacturer does not recommend M-118 for copper or copper alloys. Unlike a stand-alone protective coating, M-118 becomes part of the coating, adhesive, wax, or temporary protective formulation. That makes it particularly useful for manufacturers who already have a working waterborne product but want to improve corrosion resistance without completely rebuilding the formulation.

How M-118 Works?

Corrosion does not always start on a large exposed surface. It may begin around a scratch, at an edge, inside a paint container, or underneath a small defect in the coating. M-118 helps address several of these weak points. The additive improves the coating’s resistance to moisture and salt exposure while also helping control flash rust and in-can corrosion. It also reduces scribe creep, which refers to corrosion spreading away from a scratch or intentionally cut line in a coating. Because manufacturers can post-add M-118 after pigment addition, they may also find it useful when improving an existing formulation rather than developing a new coating from zero.

Uses of M-118 Liquid Additive

• Waterborne paints
• Water-based protective coatings
• Waterborne waxes
• Corrosion-protective solutions
• Latex-based adhesives
• Temporary protective coatings
• Industrial maintenance paints
• Metal primers
• Machinery coatings
• Fabricated steel coatings
• Aluminium coatings
• Galvanized steel coatings
• Industrial repair coatings
• Protective wax systems
• Equipment finishes
• General metal-protection formulations

Key Features of M-118 Liquid Additive

Improves Salt Spray Resistance: Salt exposure can quickly accelerate corrosion, especially on poorly protected steel or aluminium. M-118 helps improve salt spray resistance in compatible waterborne coatings. This can make it useful for industrial and coastal applications where painted metal may face airborne salts or aggressive storage conditions.

Better Humidity Resistance: Moisture can attack a coated surface even when the metal never comes into direct contact with rainwater. High humidity alone may create enough moisture to start corrosion. M-118 improves humidity resistance, helping coating formulators strengthen performance in damp or moisture-prone environments.

Helps Prevent Flash Rust: Waterborne coatings can sometimes trigger rapid surface rust on steel shortly after application. This problem is commonly called flash rusting. M-118 helps suppress this early corrosion, making it useful for water-based coatings applied directly to suitable metal surfaces.

Reduces Scribe Creep: A scratch can become a starting point for under-film corrosion. Once moisture reaches exposed metal, rust may begin spreading sideways beneath the coating. M-118 helps reduce this scribe creep and therefore supports better corrosion control around damaged areas.

Controls In-Can Corrosion: The metal package holding a water-based coating can also face corrosion. M-118 helps eliminate or reduce in-can corrosion, according to the manufacturer’s technical data. This feature becomes useful for manufacturers who store waterborne coatings in metal containers.

High-Solids Formulation: M-118 contains approximately 64–67% solids by weight. Its high-solids formulation allows manufacturers to add corrosion protection without introducing an unnecessarily large amount of liquid carrier into the coating system.

Post-Addition Is Possible: M-118 does not necessarily need to enter the formulation at the beginning. The manufacturer states that formulators can blend it into a coating after pigment addition. This flexibility may help companies improve existing products through testing rather than redesigning the complete manufacturing process.

Applications Across Qatar and Doha

Applications in Qatar

Industrial coatings in Qatar often face demanding operating conditions.

Humidity, coastal air, temperature changes, and industrial exposure can increase corrosion risk on fabricated steel, equipment, machinery, aluminium components, and galvanized structures.

M-118 can support businesses involved in:

• Oil and gas maintenance
• Petrochemical facilities
• Steel fabrication
• Aluminium fabrication
• Industrial painting
• Machinery maintenance
• Equipment manufacturing
• Protective coating production
• Adhesive manufacturing
• HVAC equipment
• Marine-support work
• General industrial maintenance

A waterborne coating used on fabricated steel provides a good example.

The coating may initially appear sound, but a scratch or edge defect can expose bare steel. M-118 helps strengthen corrosion resistance around these vulnerable areas.

Applications in Doha

Companies in Doha use water-based coatings for machinery, equipment, fabricated metal, industrial maintenance, architectural metalwork, and repair projects.

M-118 can suit coating manufacturers that want stronger protection without moving away from waterborne technology.

For example, a company producing an acrylic or latex-based industrial coating may want better salt spray and humidity performance.

Adding M-118 can provide a practical way to improve corrosion resistance while keeping the existing coating system largely unchanged.

Nassguard supplies M-118 Liquid Additive to coating manufacturers, maintenance companies, fabricators, and industrial customers across Doha and Qatar.

Technical Specifications of M-118 Liquid Additive

Specification	Details
Product Name	M-118 Liquid Additive
Product Type	Liquid Corrosion Inhibitor Additive
Base	Waterborne
Appearance	Cream-colored paste
Main Applications	Coatings, adhesives, waxes and related formulations
Metals Protected	Carbon steel, stainless steel, aluminium and galvanized steel
Copper Compatibility	Not recommended for copper or copper alloys
Recommended Addition	Approx. 1–4% by weight
Current Website Recommendation	Approx. 2–4%
VOC	Approx. 1.7–1.8 lb/gal
Metric VOC	Approx. 0.20–0.22 kg/L
pH	Approx. 8.3–9.0
Weight per Gallon	Approx. 12.3–13.3 lb/gal
Density	Approx. 1.47–1.59 kg/L
Weight Solids	Approx. 64–67%
Volume Solids	Approx. 45–47%
Solvent	PnB – Propylene Glycol n-Butyl Ether
Packaging	189 L product packed in 208 L drums

The official M-118 technical sheet lists a cream-colored paste, pH of 8.3–9.0, weight solids of 64–67%, volume solids of 45–47%, and density of approximately 1.47–1.59 kg/L.

The same sheet gives a working range of 1–4% by weight, while the manufacturer’s current coating-additive page recommends 2–4%.

How to Add M-118 to a Coating?

M-118 can enter the formulation after pigment addition.

This gives formulators more flexibility during production.

Manufacturers should begin with a controlled trial rather than immediately using the highest loading.

Important factors include:

• Base coating chemistry
• Pigment system
• Metal substrate
• Film thickness
• Salt exposure
• Humidity
• Drying conditions
• Adhesion
• Required corrosion resistance

The manufacturer also recommends evaluating performance in the actual formulation before commercial production.

Certifications, Standards and Compliance

M-118 works as an ingredient inside a finished coating, wax, adhesive, or protective system.

Therefore, manufacturers normally test the final formulation against relevant corrosion and coating standards rather than treating M-118 itself as certified to every standard listed below.

• ASTM B117 – Salt Spray Corrosion Testing
•  D2247 – Humidity Resistance of Coatings
•  D1654 – Evaluation of Coated Specimens After Corrosive Exposure
• G85 – Modified Salt Spray Testing
• ASTM D1735 – Water Fog Resistance of Coatings

These standards provide useful references for evaluating corrosion resistance and finished coating performance. They should not be described as individual certifications held by M-118 unless specific reports or certificates confirm that status.

Why Choose M-118 Liquid Additive from Nassguard?

• Available throughout Doha and Qatar
• Designed for waterborne formulations
• Suitable for water-based paints
• Useful in waterborne waxes
• Suitable for latex-based adhesives
• Supports temporary protective coatings
• Protects carbon steel
• Supports stainless-steel protection
• Suitable for aluminium
• Protects galvanized steel
• Improves salt spray resistance
• Improves humidity resistance
• Helps control flash rust
• Reduces scribe creep
• Helps prevent in-can corrosion
• High-solids formulation
• Can be post-added after pigment addition
• Available for industrial coating and adhesive manufacturers

Nassguard supplies M-118 to companies looking for a dependable Liquid Corrosion Inhibitor Additive in Doha and Qatar for waterborne coatings, adhesives, waxes, and temporary corrosion-protection formulations.

Frequently Asked Questions

1. What is M-118 Liquid Additive?

M-118 is a waterborne corrosion inhibitor additive for compatible coatings, adhesives, waxes, and related materials.

2. Which metals does M-118 protect?

M-118 protects carbon steel, stainless steel, aluminium, and galvanized steel.

3. Can I use M-118 on copper?

No, the manufacturer does not recommend M-118 for copper or copper alloys.

4. What is the recommended M-118 dosage?

The technical sheet recommends approximately 1–4% by total formulation weight.

5. Does M-118 help prevent flash rust?

Yes, M-118 helps control flash rust in compatible waterborne formulations.

6. Can M-118 reduce in-can corrosion?

Yes, the manufacturer lists control of in-can corrosion as one of its key features.

7. Where can I buy M-118 Liquid Additive in Qatar?

Nassguard supplies M-118 Liquid Additive to customers throughout Doha and Qatar.

Conclusion

Waterborne coatings can perform well, but metal corrosion still needs careful control. Salt exposure, humidity, scratches, flash rust, and corrosion inside metal containers can all affect the performance of a coating system.

M-118 gives formulators a practical way to address several of these problems with one additive. It works in waterborne paints, waxes, latex-based adhesives, and temporary protective coatings. The product supports carbon steel, stainless steel, aluminium, and galvanized steel while improving salt spray and humidity resistance. It also helps reduce scribe creep, flash rust, and in-can corrosion.

Its ability to enter a formulation after pigment addition gives manufacturers another advantage when improving an existing product. For businesses searching for a Liquid Corrosion Inhibitor Additive in Qatar and Doha, Nassguard supplies M-118 for industrial coatings, maintenance paints, adhesives, waxes, metal fabrication, machinery protection, and related corrosion-control applications.