International Interzinc 52 is formulated as a high performance primer to give maximum protection as part of any anti-corrosive coating system for aggressive environments including those found on offshore structures, petrochemical facilities, pulp and paper plants, bridges and power plants. Interzinc 52 has been designed to provide excellent corrosion resistance in both maintenance and new construction situations.
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 52, 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 40-75 microns (1.6-3.0 mils) is recommended.
Shop Primed Steelwork
Interzinc 52 is suitable for application to unweathered 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 cleaned to a minimum St3 (ISO 8501-1:2007) or SSPC-SP3.
Optimum performance will be achieved with blasting to Sa2½ (ISO 8501-1:2007) or SSPC-SP6; where this is not practical, power tool preparation to SSPC-SP11 is recommended.
Apply using airless or air spray or brush for small areas only.
Interzinc 52 is designed for application to correctly prepared steel. However, it is also possible to apply over approved prefabrication primers. Further details of these can be obtained from our technical team.
Recommended topcoats are:
|Type:||Metallic zinc rich epoxy|
|Stock Colours:||Blue, Grey and Green|
|VOC Content:||152.0g per Litre|
|Suitable Substrates:||For metal surfaces|
|Application Method:||Brush or Airless Spray|
|Theoretical Coverage:||7.87 m2 per litre at 75 microns|
|Wet Film Thickness (WFT):||85 - 127 microns|
|Dry Film Thickness (DFT):||50 - 75 microns|
|Pot Life:||12 hours at 15°C|
|Touch Dry:||90 minutes at 15°C|
|Overcoatable:||After 4 hours at 15°C|
|Hard Dry:||6 hours at 15°C|
|Cleaner / Thinner:||Thinner not normally required but if needed use International GTA220 (or International GTA415). Clean up with International GTA822 (or International GTA415)|
|Shelf Life:||12 months minimum at 25°C (77°F). Subject to re-inspection thereafter. Store in dry, shaded conditions away from sources of heat and ignition.|
|Packaging:||Available in 10 Litres|
The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.
Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.