Ressi EPO Prime – Protected is a high-performance, two-component anticorrosive epoxy primer
specifically designed for C2 low corrosivity environments as defined in ISO 12944. It is formulated to
protect steel structures and equipment exposed to low levels of humidity and pollution, typically
found in indoor industrial areas and rural outdoor environments.
This primer provides excellent adhesion, moisture resistance, and effective corrosion protection for
mild to moderately exposed steel surfaces. It contains active anticorrosive pigments and barrier-en
hancing additives, ensuring reliable protection and forming a tough, chemically resistant film that
serves as an ideal base for topcoat applications
Ressi EPO Prime – Protected is a high-performance, two-component anticorrosive epoxy primer
specifically designed for C2 low corrosivity environments as defined in ISO 12944. It is formulated to
protect steel structures and equipment exposed to low levels of humidity and pollution, typically
found in indoor industrial areas and rural outdoor environments.
This primer provides excellent adhesion, moisture resistance, and effective corrosion protection for
mild to moderately exposed steel surfaces. It contains active anticorrosive pigments and barrier-en
hancing additives, ensuring reliable protection and forming a tough, chemically resistant film that
serves as an ideal base for topcoat applications
Ressi EPO Prime – Protected is a high-performance, two-component anticorrosive epoxy primer
specifically designed for C2 low corrosivity environments as defined in ISO 12944.
It is formulated to protect steel structures and equipment exposed to low levels of humidity and pollution,
typically found in indoor industrial areas and rural outdoor environments.
This primer provides excellent adhesion, moisture resistance, and effective corrosion protection for mild to
moderately exposed steel surfaces. It contains active anticorrosive pigments and barrier-enhancing additives,
ensuring reliable protection and forming a tough, chemically resistant film that serves as an ideal base for
topcoat applications.
TYPICAL APPLICATION
Indoor structural steel and machinery
Industrial workshops and warehouses
Food processing plants and storage areas
Light fabrication and maintenance coatings
Rural outdoor structures with low pollution exposure
General engineering and OEM applications
ADVANTAGES
Formulated for C2 low corrosivity environments (ISO 12944 compliant)
Excellent adhesion to properly prepared steel surfaces
Provides effective protection against humidity and mild atmospheric exposure
Contains anticorrosive pigments for extended service life
Cures to a hard, durable, chemically resistant film
Compatible with a wide range of epoxy and polyurethane topcoats
Easy to apply by brush, roller, or spray
SURFACE PREPARATION
All surfaces must be clean, dry, and free from oil, grease, rust, and other contaminants.
For optimal results, abrasive blast cleaning to a minimum of Sa 2½ (ISO 8501-1) is recommended.
If blasting is not possible, mechanical cleaning to St 3 standard may be used as an alternative.
Ensure the cleaned surface is free from dust and moisture prior to primer application.
MIXING
Ressi EPO Prime – Protected is supplied in pre-measured two-component kits (Base and Hardener).
Add the entire contents of the Hardener (Part B) to the Base (Part A).
Mix thoroughly using a low-speed mechanical mixer (300–400 rpm) until a uniform blend is achieved.
Avoid air entrapment during mixing.
APPLICATION
Apply the mixed material using airless spray, conventional spray, brush, or roller.
Ensure uniform film thickness and full surface coverage.
Recommended Dry Film Thickness (DFT): 60–70 microns per coat
Apply subsequent coats once the primer is dry to touch and within the specified overcoating interval.
COVERAGE
Approximately 100–120 sq. ft. per kg per coat @ 80–100 microns.
Theoretical coverage values are provided for reference only; actual material consumption may vary depending on
surface profile, porosity, and application conditions.
LIMITATIONS
When temperatures exceed 35°C, working times will be reduced significantly.
During application in cold weather, correct conditioning is essential.
Application should be halted if the ambient or substrate temperature is likely to fall below
10°C.
TECHNICAL PROPERTIES
Property
Value
Appearance
Opaque Liquid
Color
Red
Viscosity (Part A)
600 – 1000
Viscosity (Part B)
100 – 150
Mix Ratio (Part A : Part B)
100 : 33
Mix Viscosity @ 25°C / cPs
200 – 400
Mix Density / g/cc
1.10
Working time
90 – 120 minutes
Tack Free Time
4 – 5 Hours
Over coat time
8 Hours – 12 Hours (Depending upon nature of substrate)
Full Cure
7 days
Adhesion Test (ASTM D 3359)
5B (Pass)
Pencil Hardness (ASTM D 3363)
5H (Pass)
Mandrel Test (ASTM D 522)
12mm (Pass)
Impact Resistance Test (ASTM D 2794)
>60 inch-lb
SHELF LIFE
12 months from the date of manufacture when stored under warehouse conditions in original unopened
packaging. Extreme temperature / humidity may reduce shelf life.
PACK SIZE
Ressi EPO Prime – Protected is available in the following pack sizes:
1 KG:
Part A: 750g
Part B: 250g
5 KG:
Part A: 3.75 KG
Part B: 1.25 KG
20 KG:
Part A: 15 KG
Part B: 5 KG
HEALTH AND SAFETY
The packed material of Ressi EPO Prime – Protected is regarded as non-hazardous for transportation.
Once opened, extreme temperatures may cause the material to be flammable. Do not reuse bags, containers, and
packaging materials. Dispose packaging as per local rules and regulations. Gloves and suitable masks should be
worn during application. Please refer to the product MSDS for further health and safety information.
