Interzinc 22

Intended uses

As a base coat for a wide range of above water organic coating schemes to greatly enhance corrosion resistance. For use at Newbuilding or Maintenance & Repair.

color	QHA028-Grey
Finish/Sheen	Not applicable
Part B (Curing Agent)	QHA027 (zinc dust)
Volume Solids	63% ±2% (ISO 3233:1998)
Mix Ratio	3.1 volume(s) Part A to 1 volume(s) Part B
Typical Film Thickness	75 microns dry (119 microns wet)
Theoretical Coverage	8.40 m2/litre at 75 microns dft, allow appropriate loss factors
Method of Application	Airless Spray, Brush, Conventional Spray, Roller
Flash Point	Part A 14°C ; Part B Not Applicable ; Mixed 14°C
Induction Period	Not required

Drying Information

	Substrate Temperature
	5°C	15°C	25°C	35°C
Touch Dry [ISO 1517:73]	30 mins	20 mins	10 mins	7 mins
Hard Dry [ISO 9117:90]	3 hrs	90 mins	60 mins	30 mins
Pot Life	12 hrs	8 hrs	4 hrs	2 hrs

Overcoating Data

Overcoated By	Substrate Temperature
	-5°C		5°C		25°C		35°C
	Min	Max	Min	Max	Min	Max	Min	Max
Intergard 269	18 hrs	ext	9 hrs	ext	4.5 hrs	ext	1.5 hrs	ext

Note

Overcoating is dependant upon ambient conditions. Figures have been determined at the quoted temperature and 65% relative humidity. (see Limitations)

Regulatory data

VOC

470 g/lt as supplied (EPA Method 24) 220 g/kg of liquid paint as supplied. EU Solvent Emissions Directive (Council Directive 1999/13/EC)

Note.

VOC values are typical and are provided for guidance purposes only. These may be subject to variation depending on factors such as differences in colour and normal manufacturing tolerances.

CERTIFICATION

When used as part of an approved scheme, this material has the following certification:

• Food Contact - Carriage of Grain (NOHA)

Consult your International Paint representative for details.

System and compatibility

Consult your International Paint representative for the system best suited for the surfaces to be protected.

Surface preparations

Use in accordance with the standard Worldwide Marine Specifications. All surfaces to be coated should be clean, dry and free from contamination. High pressure fresh water wash or fresh water wash, as appropriate, and remove all oil or grease, soluble contaminants and other foreign matter in accordance with SSPC-SP1 solvent cleaning.

NEWBUILDING

Interzinc 22 may be applied over some fresh zinc silicate shop primers. International Paint should be consulted regarding zinc silicate shop primers and the requisite surface preparation prior to their overcoating. 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 Sa21⁄2 (ISO 8501-1:2007).

MAJOR REFURBISHMENT/REPAIR

Abrasive blast clean to Sa21⁄2 (ISO 8501-1:2007). If oxidation has occurred between blasting and application of Interzinc 22, 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 is recommended. Consult your International Paint representative for specific recommendations.

Consult your International Paint representative for specific recommendations.

APPLICATION

Mixing

Interzinc 22 is supplied in 2 parts, a liquid Binder base component (Part A) and a Powder component (Part B). The Powder (Part B) should be slowly added to the liquid Binder (Part A) whilst stirring with a mechanical agitator. DO NOT ADD LIQUID TO POWDER. Material should be filtered prior to application and should be constantly agitated in the pot during spraying. Once the unit has been mixed it should be used within the working pot life specified.

Thinner

Not recommended under normal conditions of use. Use International GTA803 or International GTA415 (USA) in exceptional circumstances or to assist spray application at high termperatures (typically above 28°C). Do not thin more than allowed by local environmental legislation.

Airless Spray

Recommended Tip Range 0.38-0.53 mm (15-21 thou) Total output fluid pressure at spray tip not less than 112 kg/cm2 (1590 p.s.i.)

Conventional Spray

Gun DeVilbiss MBC or JCA with leather packing, Air Cap 704, Fluid Tip E

Brush

Recommended for small areas only.

Roller

Not recommended.

Cleaner

International GTA803/GTA415

Work Stoppages and Cleanup

Do not allow material to remain in hoses, gun or spray equipment. Thoroughly flush all equipment with International GTA803/GTA415. Once units of paint have been mixed they should not be resealed and it is advised that after prolonged stoppages work recommences with freshly mixed units. Clean all equipment immediately after use with International GTA803/GTA415. It is good working practice to periodically flush out spray equipment during the course of the working day. Frequency of cleaning will depend upon amount sprayed, temperature and elapsed time, including any delays. Do not exceed pot life limitations. All surplus materials and empty containers should be disposed of in accordance with appropriate regional regulations/legislation.

Welding

In the event welding or flame cutting is performed on metal coated with this product, dust and fumes will be emitted which will require the use of appropriate personal protective equipment and adequate local exhaust ventilation. In North America do so in accordance with instruction in ANSI/ASC Z49.1 "Safety in Welding and Cutting."

SAFETY

All work involving the application and use of this product should be performed in compliance with all relevant national Health, Safety & Environmental standards and regulations. Prior to use, obtain, consult and follow the Material Safety Data Sheet for this product concerning health and safety information. Read and follow all precautionary notices on the Material Safety Data Sheet and container labels. If you do not fully understand these warnings and instructions or if you can not strictly comply with them, do not use this product. Proper ventilation and protective measures must be provided during application and drying to keep solvent vapour concentrations within safe limits and to protect against toxic or oxygen deficient hazards. Take precautions to avoid skin and eye contact (ie. gloves, goggles, face masks, barrier creams etc.) Actual safety measures are dependant on application methods and work environment.

Limitations

The minimum overcoating interval is dependent on the relative humidity. At relative humidities less than 65% the minimum recoat period may by extended. This should be confirmed by carrying out a solvent rub test. Consult International Paint for details. The maximum overcoating interval is normally indefinite but will be dependent on the weather and environmental conditions. The Interzinc 22 surface must be clean, dry and free from soluble zinc salts and zinc corrosion product. For overcoating procedures consult International Paint. Overcoating information is given for guidance only and is subject to regional variation depending upon local climate and environmental conditions. Consult your local International Paint representative for specific recommendations. Apply in good weather. Temperature of the surface to be coated must be at least 3°C above the dew point. For optimum application properties bring the material to 21-27°C, unless specifically instructed otherwise, prior to mixing and application. Unmixed material (in closed containers) should be maintained in protected storage in accordance with information given in the STORAGE Section of this data sheet. Technical and application data herein is for the purpose of establishing a general guideline of the coating application procedures. Test performance results were obtained in a controlled laboratory environment and International Paint makes no claim that the exhibited published test results, or any other tests, accurately represent results found in all field environments. As application, environmental and design factors can vary significantly, due care should be exercised in the selection, verification of performance and use of the coating. In the overcoating data section 'ext' = extended overcoating period. Please refer to our Marine Painting Guide - Definitions and Abbreviations available on our website.

Unit size

Unit size	Part A		Part B
	Vol	Pack	Vol	Pack
13.78 lt	10.42 lt	15 lt	3.36 lt	20 lt
4.92 US gal	3.72 US gal	5 US gal	1.2 US gal	3 US gal

For availability of other unit sizes consult International Paint

Unit shipping weight

Unit size	Unit Weight
13.78 lt	37.4 lt
4.92 US gal	110.8 lb

Storage

Shelf Life

Low flash storage required. Part A - 6 months at 25°C Part B - 12 months at 25°C Subject to reinspection thereafter. Store in dry, shaded conditions away from sources of heat and ignition.