International Interzone 762

International Interzone 762 is a high performance anti-corrosive coating for application at new construction where high build and fast cure combine to optimise the throughput of steelwork and minimise production overheads.

Best Uses

International Interzone 762 a two component, styrene free, glass flake reinforced ambient cure polyester / acrylic copolymer coating.

International Interzone 762 is formulated for the protection of steelwork exposed in aggressive environments such as offshore structures, chemical and petrochemical plants, pulp and paper mills and power plants.

Can also be applied as a maintenance coating on site where its fast cure and high build characteristics help to minimise downtime and keep maintenance costs to a minimum.

Application

All surfaces to be coated should be clean, dry and free from contamination. Prior to paint application, all steel surfaces should be assessed and treated in accordance with ISO 8504:2000. Oil or grease should be removed in accordance with SSPC-SP1 Solvent Cleaning.

Abrasive Blast Cleaning
Abrasive blast clean to Sa2½ (ISO 8501-1:2007) or SSPC-SP6. If oxidation has occurred between blasting and application of Interzone 762, the surface should be reblasted to the specified visual standard. Surface defects revealed by the blast cleaning process should be ground, filled, or treated in the appropriate manner. A surface profile of 75-100 microns (3-4 mils) is recommended.

If a holding primer is required for Interzone 762 then only the use of Interline 949 is advised. Alternatively, the blast standard can be maintained by the use of dehumidification.

Shop Primed Steel
Prior to application of Interzone 762, all shop primed steelwork must be re-blasted to a visual standard as outlined above.

Compatibility

Interzone 762 is normally applied to suitably prepared steel, e.g. blast cleaned. If necessary, application over a holding primer is possible, however, this is limited to:

• Interline 949

Recommended cosmetic topcoats for exposed high profile areas are:

• Interfine 629HS
• Intergard 740
• Interthane 990

For other suitable topcoats, consult our technical team.