International Interzinc 109

International Interzinc 109 is formulated as a high performance anti-corrosive primer to form part of a coating system to provide corrosion protection to steel substrates in a wide range of industrial situations.

Best Uses

International Interzinc 109 is a two component, metallic zinc rich epoxy primer formulated to provide fast drying, rapid handling properties and excellent abrasion resistance.

Suitable for various industries including offshore structures, cranes, petrochemical refineries, chemical plants, pulp and paper plants and bridges.

Application

All surfaces to be coated should be clean, dry and free from contamination. Prior to paint application all 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 Interzinc 109, 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.

Shop Primed Steel
Interzinc 109 is suitable for application to steelwork freshly coated with zinc silicate shop primers. If the zinc shop primer shows extensive or widely scattered breakdown, or excessive zinc corrosion products, overall sweep blasting will be necessary. Other types of shop primer are not suitable for overcoating and will require complete removal by abrasive blast cleaning. Weld seams and damaged areas should be blast cleaned to Sa2½ (ISO 8501-1:2007) or SSPCSP6.

Apply using airless or air spray as per data sheet instructions.

Compatibility

Interzinc 109 is designed for use over correctly prepared blasted steel, but can be applied over approved preconstruction primers.

Recommended topcoats are:

• Intergard 400
• Intergard 410
• Intergard 475HS
• Intergard 540

For other suitable primers/topcoats, consult our technical team.