Manufacturer: Jotun Paints
Jotun Barrier 77 is a two pack, polyamide cured zinc rich epoxy coating with high zinc dust content. It conforms to the compositional requirements of SSPC paint 20, level 2 and provides very good corrosion protection as part of a complete coating system. To be used as primer in atmospheric environments. Suitable for carbon steel, repair of inorganic zinc silicate coating and damaged galvanised steel substrates. This product complies with ASTM D520 type II zinc dust.
The Barrier Range are two-pack zinc rich epoxy primers with a high content of zinc that complies with the compositional requirements for SSPC Paint 20 level 2 and ISO 12944. As a zinc rich primer on blast cleaned steel. Barrier products are used in combination with advanced coating systems to further improve protection against corrosion.
- High zinc dust containing product
|Application Method ||Airless Spray or Brush |
|Surfaces ||Structural Steel / Offshore Environments / Buildings |
|VOC Level ||443g / Litre |
|Coverage ||7.1m² / Litre |
|Touch Dry ||20 Minutes @ 10°C / 4 Minutes @ 40°C |
|Over-Coating ||2 Hours @ 10°C / 40 Minutes @ 40°C |
|Pot life @ 23°C ||24 Hours |
|Maintenance Cycle ||2 Years |
|Thinning & Cleaning ||Jotun No.17 |
|Number of Coats ||2 |
Surface Preparation: All surfaces should be clean, dry and free from contamination. The surface should be assessed and treated in accordance with ISO 8504.
Bare steel: Blast cleaning to min. Sa 2 1⁄2 (ISO 8501-1:1988) or for maintenance UHPWJ to WJ2 (NACE No.5/SSPC-SP 12). Roughness: using abrasives suitable to achieve minimum grade Fine (ISO 8503-2).
Shop primed steel: Clean, dry and undamaged approved shopprimer.
Other surfaces: The coating may be used on other substrates.
Please contact us for more information.
Typical Paint System: Barrier Range 1 x 25 - 90 μm (DFT) followed by subsequent coating(s) by choice e.g. Epoxy, Acrylic or Vinyl.
Other systems may be specified, depending on area of use.
Typical Use: Protective: Suitable for structural steel and piping to be exposed to highly corrosive environments, C5I or C5M (ISO 12944-2). Recommended for offshore environments, refineries, power plants, bridges, buildings, mining equipment and general structural steel. Designed as a primer in coating systems where extended durability is required.
Spray: Use airless spray.
Brush: Recommended for stripe coating and small areas. Care must be taken to achieve the specified dry film thickness.