Intended Uses:

For the protection of steel from corrosion on areas including flare stacks, chimneys, exhausts, vents and pipework, at temperatures up to 540°C (1004°F).
Where maximum corrosion protection is required, application should be over a zinc silicate primer
(e.g. Interzinc 22).

Surface preparation:

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 Sa2Ѕ (ISO 8501-1:2007) or SSPC-SP6. If oxidation has occurred between blasting and application of Intertherm 50, 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 25-50 microns (1-2 mils) is recommended.

Hand or Power Tool Preparation
Any coatings present on the surface must be removed prior to the application of Intertherm 50. Hand or power tool clean to a minimum St3 (ISO 8501-1:2007) or SSPC-SP3.
Note, all scale must be removed and areas which cannot be prepared adequately by chipping or needle gun should be spot blasted to a minimum standard of Sa2Ѕ (ISO 8501-1:2007) or SSPC-SP6. Typically this would apply to C or D grade rusting in this standard.

Primed Surfaces
Intertherm 50 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 blast cleaned to Sa2Ѕ (ISO 8501-1:2007) or SSPC-SP6.

Aluminium Metal Spray
Metal sprayed surfaces should be fresh, clean and free from moisture, or surface contamination.

Application:

This material is a one component coating and should always be mixed thoroughly with a power agitator before application.

Mix Ratio:

Not applicable.

Systems compatibility:

This specialist coating is only compatible with a very limited number of products.
Suitable primers are:
Interzinc 22

Suitable topcoats are:
Intertherm 50
For other suitable primers, consult International Protective Coatings.

Storage:

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.

Safety Data Sheets: 

INTERTHERM 50 ALUMINIUM
INTERTHERM 50 BLACK