Water-Based Anticorrosive Primer for Metals – Non-Flammable

DESCRIPTION OF THE ANTICORROSIVE PRIMER

It is a water-soluble, air-drying, single-component, non-phosphate-containing, lead- and chromate-free anticorrosive primer. Due to its fire resistance, it is classified as nonflammable according to  UNE-EN 13501-1.

Ideal for protecting metal surfaces against corrosion, offering excellent adhesion and compatibility with multiple types of finishes.

FIELDS OF APPLICATION OF WATER-BASED PRIMER

It is compatible with any finishing paint, making it the ideal primer and pretreatment for all types of metal elements. It offers excellent adhesion to steel, light metals, aluminum, and galvanized steel.

Excellent repaintability with one- or two-component water-soluble finishes, as well as with one-component synthetic enamels, although in the latter case care must be taken to ensure that the applied primer film has completely evaporated the water (24 hours of air drying).

When repainting with two-component solvent-based enamels, whose volatile system is considerably more aggressive, we recommend applying them only by spraying. If brushing or rolling is essential, which are more dangerous for the integrity of the primer film, wait 48 hours or force dry for 1 hour at 80°C and apply without applying much pressure, going over the coating as little as possible.

What is this primer for?

• Long-lasting anti-corrosion protection for STEEL, ALUMINUM, LIGHT METALS and GALVANIZED METALS.

• It works as an ideal base coat before applying any topcoat:

  • Water-soluble (1 or 2 components)

  • One-component synthetic enamels

  • Two-component enamels (with precautions indicated)

TECHNICAL CHARACTERISTICS OF THE PRIMER FOR PAINTING METALS

Presentation: Ready for use

Color: RAL 7037 (other colors can be manufactured upon request, please consult)

Matte finish

Specific weight: 1.38 +- 0.05

Recommended dry thickness: 20 microns per coat

% solids by volume: 44.7% +- 1%

Theoretical yield: 22.4 m2/Lto = 16.2 m2 7 kg

Touch dry: 15 min at 20ºC and 60% humidity

Application: Brush, roller or spray gun

VOC supply: 100 gr/lt

Diluent: Deionized water

APPLICATION METHOD AND USE OF PRIMER FOR PAINTING ALUMINUM AND STEEL

🔧 Surface preparation:

• Apply on clean and degreased metal surfaces.

• Preparation equivalent to Sa 2.5 , according to ISO 8501-1.
  👉 Buy metal degreaser here.

🎨 Application methods:

• Brush: Dilute with 0–5% deionized water. Avoid re-brushing.

• Roller: Not recommended. If necessary, use undiluted with a short-pile roller.
  👉 Buy a professional short-pile roller
  👉 Buy a budget roller

• Spray gun: Thin to viscosity 40–50" (Ford cup no. 4). Nozzle: 1.2–1.8 mm. Pressure: 2.5–4 kg/cm².

• Immersion: Dilute to viscosity 20–25". Control extraction speed.

• Airless spray: Do not thin. Nozzle: 0.011"–0.015". Pressure: 180–200 kg/cm².

Ideal application conditions:

• Ambient temperature: >10°C

• Relative humidity: <80%

• Substrate temperature: >3°C above dew point

• Drying can be accelerated with forced ventilation or oven (60–80°C)

DRY FILM CHARACTERISTICS OF THE PRIMER FOR PAINTING GALVANIZED STEEL

 ADHERENCE: Very good on all metal surfaces

FLEXIBILITY: 3 mm on tapered mandrel

THERMAL RESISTANCE: Withstands 80ºC without compromising its properties.

REACTION TO FIRE: Classified BS1D0, according to Euroclasses, UNE-EN 13501-1

Ready to protect your metal structures with a professional and safe product?
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Practical example of use

This primer is ideal for protecting exterior steel railings exposed to the elements.
All you need is:

1. Clean the surface with a degreaser.

2. Apply an even coat of primer with a brush or spray gun.

3. Wait 24 hours for air drying.

4. Apply your decorative finish (enamel or final paint).

👉 Result: excellent adhesion, anti-corrosion protection and a long-lasting professional finish.

Other cases such as:

• Metal doors and gates

• Metal structures in new construction

• Industrial bodies

• Exterior pipes

PRECAUTIONS WHEN APPLYING ANTICORROSIVE PRIMER FOR METALS

Ensure good ventilation of the premises and have a good extraction system.

Use an activated carbon mask, safety glasses, and protective gloves during application.

We guarantee the quality of our products in accordance with our general terms and conditions of sale and delivery.

Our technical advice for use, expressed verbally, in writing, or through tests, is offered in accordance with our current knowledge and experience. They constitute simple guidelines, which do not engage our responsibility, nor do they relieve you from the need to verify for yourselves that the products we supply correspond to the procedures and objectives sought by you, by carrying out your own controls and tests. The application and use of the products are beyond our control and, consequently, depend exclusively on your personal responsibility, and we cannot be held responsible for results different from those reflected herein. Our safety recommendations do not prevent you from determining your own measures, adapted to the conditions of your facilities. We reserve the right to modify the information contained herein, without prior notice, according to technological developments.