Painting of metal surfaces with anti‑corrosive epoxy primer
RELATED MATERIALS
• EPOXYCOAT‑AC – two‑component anti‑corrosive epoxy coating
I. NATURE OF THE PROBLEM – REQUIREMENTS
Protection of metal surfaces made of iron or steel from oxidization or corrosion.
II. SOLUTION
EPOXYCOAT‑AC antirust epoxy primer provides active anti‑corrosive and anti‑rust protection for iron and steel surfaces that will later be coated with EPOXYCOAT or DUROFLOOR epoxy systems. It is extremely hard and resistant to friction and shows high resistance to diluted acids, alkalis, petroleum products, some solvents, water and sea water. EPOXYCOAT‑AC can also be used as the final coating when its reddish‑brown or grey colour is acceptable. Typical uses include protection of silos, steel bridges, iron roofs, pipes and fences.
III. APPLICATION
Substrate preparation
1. The substrate must be dry, stable and free of anything that would hinder bonding such as dust, loose particles, grease, rust or any kind of corrosion.
2. Depending on the nature of the substrate, it should be prepared by brushing, rubbing down, sand‑blasting etc. and then thoroughly cleaned from dust.
Application of EPOXYCOAT‑AC
1. Components A (resin) and B (hardener) are packed separately with the correct mixing proportion by weight. The entire quantity of component B is added into component A and mixed for about 5 minutes with a low‑speed mixer (~300 rpm), stirring near the sides and bottom of the container for uniform dispersion of the hardener.
2. To prime the surface, apply two coats of EPOXYCOAT‑AC with a brush, roller or spray gun. Apply the second coat once the first one is dry but within 24 hours. Consumption: approx. 150‑200 g/m² per coat.
3. Within the next 24 hours, after the primer is completely dry, apply the chosen EPOXYCOAT or DUROFLOOR system. If EPOXYCOAT‑AC is to be used as the final finish, apply two additional coats, with the second coat following once the first is dry but within 24 hours.
IV. REMARKS
• EPOXYCOAT‑AC contains solvents, so good ventilation is necessary in closed rooms.
• The working time of epoxy systems decreases as ambient temperature rises.
• Bonding between successive layers may be severely affected by moisture or dirt.
• Fresh epoxy layers should be protected from moisture for 4–6 hours after application. Moisture can whiten the surface or make it sticky and disturb hardening. Faded or sticky layers should be removed by grinding or milling and re‑laid.
• If the interval between successive coats is longer than predicted or if old floors are to be re‑coated, the surface must be thoroughly cleaned and ground before application of the new layer.
• Always read and follow the safety instructions on the product labels.
RELATED MATERIALS
• EPOXYCOAT‑AC – two‑component anti‑corrosive epoxy coating
I. NATURE OF THE PROBLEM – REQUIREMENTS
Protection of metal surfaces made of iron or steel from oxidization or corrosion.
II. SOLUTION
EPOXYCOAT‑AC antirust epoxy primer provides active anti‑corrosive and anti‑rust protection for iron and steel surfaces that will later be coated with EPOXYCOAT or DUROFLOOR epoxy systems. It is extremely hard and resistant to friction and shows high resistance to diluted acids, alkalis, petroleum products, some solvents, water and sea water. EPOXYCOAT‑AC can also be used as the final coating when its reddish‑brown or grey colour is acceptable. Typical uses include protection of silos, steel bridges, iron roofs, pipes and fences.
III. APPLICATION
Substrate preparation
1. The substrate must be dry, stable and free of anything that would hinder bonding such as dust, loose particles, grease, rust or any kind of corrosion.
2. Depending on the nature of the substrate, it should be prepared by brushing, rubbing down, sand‑blasting etc. and then thoroughly cleaned from dust.
Application of EPOXYCOAT‑AC
1. Components A (resin) and B (hardener) are packed separately with the correct mixing proportion by weight. The entire quantity of component B is added into component A and mixed for about 5 minutes with a low‑speed mixer (~300 rpm), stirring near the sides and bottom of the container for uniform dispersion of the hardener.
2. To prime the surface, apply two coats of EPOXYCOAT‑AC with a brush, roller or spray gun. Apply the second coat once the first one is dry but within 24 hours. Consumption: approx. 150‑200 g/m² per coat.
3. Within the next 24 hours, after the primer is completely dry, apply the chosen EPOXYCOAT or DUROFLOOR system. If EPOXYCOAT‑AC is to be used as the final finish, apply two additional coats, with the second coat following once the first is dry but within 24 hours.
IV. REMARKS
• EPOXYCOAT‑AC contains solvents, so good ventilation is necessary in closed rooms.
• The working time of epoxy systems decreases as ambient temperature rises.
• Bonding between successive layers may be severely affected by moisture or dirt.
• Fresh epoxy layers should be protected from moisture for 4–6 hours after application. Moisture can whiten the surface or make it sticky and disturb hardening. Faded or sticky layers should be removed by grinding or milling and re‑laid.
• If the interval between successive coats is longer than predicted or if old floors are to be re‑coated, the surface must be thoroughly cleaned and ground before application of the new layer.
• Always read and follow the safety instructions on the product labels.
