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COATGUARD 724

COATGUARD 724

ACID RESISTANT COATING

COATGUARD 724 is a two-component acid-resistant epoxy topcoat engineered to withstand strong acids and corrosive chemical exposure. It provides exceptional durability and chemical protection for both horizontal (flooring) and vertical (tank lining) surfaces in industrial environments.

For floor applications, it is used as a topcoat over an epoxy midcoat system. For tank linings, it can be directly applied over a compatible epoxy primer.

Product Overview

COATGUARD 724 delivers superior resistance to acid attack and mechanical stress in highly corrosive settings. Ideal for chemical plants, waste treatment facilities, laboratories, and containment areas.

Key Features and Benefits:

  • Outstanding Acid Resistance: Formulated to resist sulfuric acid, hydrochloric acid, nitric acid, and other corrosive agents.

  • Durable Finish: Offers high abrasion and impact resistance for long-term protection.

  • Smooth, Non-Porous Surface: Prevents absorption and facilitates easy cleaning.

  • Dual Application Use: Effective for both industrial flooring and tank linings.

  • Strong Substrate Bonding: Excellent adhesion to epoxy primers and midcoats.

  • Reliable Protection: Ideal for aggressive chemical processing environments.

Technical Data

PROPERTIES

Property
 Value
Color
Any Color.
Flash Point (Pensky-Martens Closed Cup)
32°C , 40°C
Calculated Volume Solid
65% ± 2%
Recommended Film Thickness
 3-4mils , 75–100 microns DFT / Coat
Calculated Coverage per Gallon
22m²/gal at 75 microns
Pot Life
60 minutes at 24°C
Application Temperature
20°C – 35°C (surface must be 3°C above dew point)
Mix Ratio
1:1 by volume (Part A : Part B)
Shelf Life
12 months (unopened, stored properly, mixed thoroughly before use)
Viscosity (ASTM D4212)
25sec
Adhesion (ASTM D3359-02)
4B – less than 5%
Storage Conditions
Store in cool, dry area between 4–43°C, away from sunlight and moisture.
Packaging
Gallon Kit (3.785 liters) , Pail (4 and 5 Gallons)
Temperature Resistance (Cured)
Up to 93°C sustained, 121°C intermitted
Drying Time (Touch)
60 minutes at 25°C
Drying Time (Recoat)
3–4 hours at 25°C
Drying Time (Dry Hard)
24 hours
Drying Time (Final Cure)
5-7 days

 

CHEMICAL RESISTANCE GUIDE

Chemical Type
 Splash & Spillage
Fumes
Acids
Good
Very Good
Alkalies
Good
Excellent
Solvents
Good
Excellent
Fuels
Good
Excellent
Oils
Very Good
Excellent
Salts
Excellent
Excellent
Water
Excellent
Excellent

❗LIMITATIONS: Not recommended for concrete less than one month, any unsound substrate, and substrate with moisture content exceeding 3% as per ASTM D4263, non-hardening sealants and caulking, form- release agents containing wax or oil. Silicone-coated surfaces, expansion joint, soluble stains, asphalt surfaces and areas where water seepage exists.

Application Guide

Surface Preparation

A. Concrete Substrates

  1. Remove Existing Coatings

    • Strip all old coatings using paint stripper or PCD (polycrystalline diamond) tools.

  2. Surface Profiling

    • Mechanically grind the surface using 25-grit diamond tooling to achieve a Concrete Surface Profile (CSP) of 2–3 for maximum adhesion.

  3. Cleaning

    • Vacuum thoroughly and wash with a neutral pH cleaner to remove dust, grease, and contaminants.

    • Allow the surface to dry completely.

  4. Moisture Check

    • Ensure substrate moisture content is less than 4%. Avoid applying over damp or moisture-vapor-transmitting surfaces.

B. Metal Substrates

  1. Rust and Coating Removal

    • Abrasive blast to SSPC-SP10 / NACE No. 2 (Near-White Metal) standard.

    • If blasting is unavailable, power tool clean to SSPC-SP11 standard.

  2. Surface Profile

    • Achieve a profile of 40–75 microns (1.5–3.0 mils).

  3. Cleaning

    • Wipe surfaces with solvent degreaser (e.g., xylene or acetone).

    • Prime immediately to avoid flash rusting.

Mixing Instructions

  • Mix Part A and Part B as per specifications (refer to product label or TDS).

  • Use pre-measured kits for easy and accurate mixing:

    • 1:1 Kit – Both cans (e.g., 1 gallon each) are half-filled. Pour Part B into Part A and mix directly.

    • 1:3 Kit – One gallon of Part A is 2/3 full; pour entire quart of Part B into it and mix thoroughly.

  • Mix mechanically at low speed for 2–3 minutes until uniform.

Paint Application Instructions

  1. Mask Off Unpainted Areas

    • Use painter’s tape or masking film to protect baseboards, drains, equipment edges, and adjacent surfaces.

    • Cover nearby areas with plastic sheets to prevent accidental splatter.

  2. Plan Your Exit

    • Always start painting from the side opposite the exit to avoid painting yourself into a corner.

  3. Application Methods

    • Apply using a roller, brush, or airless spray.

    • Work in small, manageable sections and maintain a wet edge to prevent visible lap marks (streaks or uneven buildup from overlapping dried sections).

    • Do not stop mid-way in large open areas—finish full passes to maintain uniformity.

  4. Environmental Conditions

    • Ensure application is within recommended temperature and humidity ranges (refer to TDS).

  5. Ventilation & PPE

    • Ensure proper airflow. Wear gloves, goggles, and respirators during application.

Recoat Window

  • Minimum: 8 hours at 25°C

  • Maximum: 24 hours

  • If exceeded, lightly sand or abrade surface before recoating.

System Use

For Flooring Applications:

  1. Primer: Coatguard 110 Epoxy Primer
    – Seals and penetrates the concrete substrate for improved adhesion.

  2. Midcoat: Coatguard 114 Epoxy Mastic Midcoat
    – Used to build up film thickness and correct surface irregularities. Apply 2–3 coats depending on floor texture.

  3. Topcoat: COATGUARD 724
    – Final acid-resistant coating, applied in 2 coats for superior chemical protection.

For Tank Lining Applications:

  1. Primer: Coatguard 110 Epoxy Primer
    – Promotes adhesion and acts as a base for chemical protection.

  2. Topcoat: COATGUARD 724
    – Apply 2 coats directly over the primer for excellent acid resistance in vertical or confined areas.

Related products

Product Overview

COATGUARD 724 delivers superior resistance to acid attack and mechanical stress in highly corrosive settings. Ideal for chemical plants, waste treatment facilities, laboratories, and containment areas.

Key Features and Benefits:

  • Outstanding Acid Resistance: Formulated to resist sulfuric acid, hydrochloric acid, nitric acid, and other corrosive agents.

  • Durable Finish: Offers high abrasion and impact resistance for long-term protection.

  • Smooth, Non-Porous Surface: Prevents absorption and facilitates easy cleaning.

  • Dual Application Use: Effective for both industrial flooring and tank linings.

  • Strong Substrate Bonding: Excellent adhesion to epoxy primers and midcoats.

  • Reliable Protection: Ideal for aggressive chemical processing environments.

Technical Data

PROPERTIES

Property
 Value
Color
Any Color.
Flash Point (Pensky-Martens Closed Cup)
32°C , 40°C
Calculated Volume Solid
65% ± 2%
Recommended Film Thickness
 3-4mils , 75–100 microns DFT / Coat
Calculated Coverage per Gallon
22m²/gal at 75 microns
Pot Life
60 minutes at 24°C
Application Temperature
20°C – 35°C (surface must be 3°C above dew point)
Mix Ratio
1:1 by volume (Part A : Part B)
Shelf Life
12 months (unopened, stored properly, mixed thoroughly before use)
Viscosity (ASTM D4212)
25sec
Adhesion (ASTM D3359-02)
4B – less than 5%
Storage Conditions
Store in cool, dry area between 4–43°C, away from sunlight and moisture.
Packaging
Gallon Kit (3.785 liters) , Pail (4 and 5 Gallons)
Temperature Resistance (Cured)
Up to 93°C sustained, 121°C intermitted
Drying Time (Touch)
60 minutes at 25°C
Drying Time (Recoat)
3–4 hours at 25°C
Drying Time (Dry Hard)
24 hours
Drying Time (Final Cure)
5-7 days

 

CHEMICAL RESISTANCE GUIDE

Chemical Type
 Splash & Spillage
Fumes
Acids
Good
Very Good
Alkalies
Good
Excellent
Solvents
Good
Excellent
Fuels
Good
Excellent
Oils
Very Good
Excellent
Salts
Excellent
Excellent
Water
Excellent
Excellent

❗LIMITATIONS: Not recommended for concrete less than one month, any unsound substrate, and substrate with moisture content exceeding 3% as per ASTM D4263, non-hardening sealants and caulking, form- release agents containing wax or oil. Silicone-coated surfaces, expansion joint, soluble stains, asphalt surfaces and areas where water seepage exists.

Application Guide

Surface Preparation

A. Concrete Substrates

  1. Remove Existing Coatings

    • Strip all old coatings using paint stripper or PCD (polycrystalline diamond) tools.

  2. Surface Profiling

    • Mechanically grind the surface using 25-grit diamond tooling to achieve a Concrete Surface Profile (CSP) of 2–3 for maximum adhesion.

  3. Cleaning

    • Vacuum thoroughly and wash with a neutral pH cleaner to remove dust, grease, and contaminants.

    • Allow the surface to dry completely.

  4. Moisture Check

    • Ensure substrate moisture content is less than 4%. Avoid applying over damp or moisture-vapor-transmitting surfaces.

B. Metal Substrates

  1. Rust and Coating Removal

    • Abrasive blast to SSPC-SP10 / NACE No. 2 (Near-White Metal) standard.

    • If blasting is unavailable, power tool clean to SSPC-SP11 standard.

  2. Surface Profile

    • Achieve a profile of 40–75 microns (1.5–3.0 mils).

  3. Cleaning

    • Wipe surfaces with solvent degreaser (e.g., xylene or acetone).

    • Prime immediately to avoid flash rusting.

Mixing Instructions

  • Mix Part A and Part B as per specifications (refer to product label or TDS).

  • Use pre-measured kits for easy and accurate mixing:

    • 1:1 Kit – Both cans (e.g., 1 gallon each) are half-filled. Pour Part B into Part A and mix directly.

    • 1:3 Kit – One gallon of Part A is 2/3 full; pour entire quart of Part B into it and mix thoroughly.

  • Mix mechanically at low speed for 2–3 minutes until uniform.

Paint Application Instructions

  1. Mask Off Unpainted Areas

    • Use painter’s tape or masking film to protect baseboards, drains, equipment edges, and adjacent surfaces.

    • Cover nearby areas with plastic sheets to prevent accidental splatter.

  2. Plan Your Exit

    • Always start painting from the side opposite the exit to avoid painting yourself into a corner.

  3. Application Methods

    • Apply using a roller, brush, or airless spray.

    • Work in small, manageable sections and maintain a wet edge to prevent visible lap marks (streaks or uneven buildup from overlapping dried sections).

    • Do not stop mid-way in large open areas—finish full passes to maintain uniformity.

  4. Environmental Conditions

    • Ensure application is within recommended temperature and humidity ranges (refer to TDS).

  5. Ventilation & PPE

    • Ensure proper airflow. Wear gloves, goggles, and respirators during application.

Recoat Window

  • Minimum: 8 hours at 25°C

  • Maximum: 24 hours

  • If exceeded, lightly sand or abrade surface before recoating.

System Use

For Flooring Applications:

  1. Primer: Coatguard 110 Epoxy Primer
    – Seals and penetrates the concrete substrate for improved adhesion.

  2. Midcoat: Coatguard 114 Epoxy Mastic Midcoat
    – Used to build up film thickness and correct surface irregularities. Apply 2–3 coats depending on floor texture.

  3. Topcoat: COATGUARD 724
    – Final acid-resistant coating, applied in 2 coats for superior chemical protection.

For Tank Lining Applications:

  1. Primer: Coatguard 110 Epoxy Primer
    – Promotes adhesion and acts as a base for chemical protection.

  2. Topcoat: COATGUARD 724
    – Apply 2 coats directly over the primer for excellent acid resistance in vertical or confined areas.

Related products

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