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InterShield 300

A light coloured, abrasion resistant, aluminium pure epoxy coating giving excellent long term anticorrosive protection and low temperature application capability.


A universal primer which can be applied directly to mechanically prepared shop primer or suitably prepared bare steel. Suitable for use with controlled cathodic protection. For use at Newbuilding or Maintenance & Repair.

color ENA300-Bronze, ENA301-Aluminium
Finish/Sheen Not applicable
Part B (Curing Agent) ENA303
Volume Solids 60% ±2% (ISO 3233:1998)
Mix Ratio 2.50 volume(s) Part A to 1 volume(s) Part B
Typical Film Thickness 150 microns dry (250 microns wet)
Theoretical Coverage 4.00 m²/litre at 150 microns dft, allow appropriate loss factors
Method of Application Airless Spray, Brush, Roller
Flash Point

Part A 28°C; Part B 26°C; Mixed 28°C

Induction Period Not required

Drying Information

  Substrate Temperature
  -5°C 5°C 25°C 35°C
Touch Dry [ISO 9117/3:2010] 7 hrs 5 hrs 3 hrs 2 hrs
Hard Dry [ISO 9117-1:2009] 10 hrs 8 hrs 6 hrs 3 hrs
Pot Life 6 hrs 6 hrs 150 mins 60 mins
See Limitations section when Intershield 300 is used as part of an Intersleek scheme.

Overcoating Data

see limitations

Overcoated By Substrate Temperature
5°C 25°C 35°C
  Min Max Min Max Min Max Min Max
Interfine 691 10 hrs 3 days 8 hrs 3 days 6 hrs 3 days 3 hrs 3 days
Interfine 979 - - 8 hrs 7 days 6 hrs 7 days 3 hrs 7 days
Intergard 263 14 hrs 14 days 9 hrs 14 days 7 hrs 14 days 4 hrs 14 days
Intergard 269 14 hrs 6 mths 9 hrs 6 mths 7 hrs 6 mths 4 hrs 3 mths
Intergard 282 14 hrs 14 days 9 hrs 14 days 7 hrs 14 days 4 hrs 14 days
Intergard 740 14 hrs 14 days 9 hrs 7 days 7 hrs 4 days 4 hrs 4 days
Intershield 300
Immersed Areas
14 hrs 14 days 9 hrs 14 days 7 hrs 14 days 4 hrs 14 days
Intershield 300
Non Immersed Areas
14 hrs 6 mths 9 hrs 6 mths 7 hrs 6 mths 4 hrs 3 mths
Intersleek 717 - - 9 hrs 14 days 7 hrs 14 days 4 hrs 14 days
Intersleek 731 - - - - 4 hrs 10 hrs 3 hrs 8 hrs
Intersleek 737 - - 7 hrs 24 hrs 5 hrs 9 hrs 3 hrs 7 hrs
Interthane 990 14 hrs 5 days 9 hrs 5 days 7 hrs 3 days 4 hrs 2 days


When overcoating with Intersleek 386, refer to the Intersleek 737 data.
Intershield 300 may be overcoated with Intersleek 737 at 0°C, the minimum interval being 12 hours and the maximum 30 hours. Intershield 300 may be overcoated with Intersleek 731 above 15°C. At 15°C, the minimum interval being 5 hours and the maximum being 13 hours.
When overcoating with Interbond 201 or Interbond 501, refer to the Intergard 740 data.
Interthane 990 may be used on boottop areas at reduced overcoating intervals. Consult International Paint.
Interfine 691 is currently only available in Europe.
When overcoating with Interfine 878, refer to the Interfine 979 data.



VOC 386 g/lt as supplied (EPA Method 24) 318 g/kg of liquid paint as supplied. EU Solvent Emissions Directive (Council Directive 1999/13/EC)


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.



When used as part of an approved scheme, this product has the following certification:
• Food Contact - Carriage of Grain (NOHA)
• Tank Coatings - Recognised Corrosion Control Coating (LR)
• Tank Coatings - B1 Classification of Ballast Tank Coatings (DNV/Marintek tested)
• Tank Coatings - Ballast Tank type approval (GL)
• Tank Coatings - NORSOK M-501, Rev 3, system 7 (Marintek)
• Fire Resistance - MSC61(67) Smoke & Toxicity (WFR)
• Fire Resistance - Surface Spread of Flame (WFR) - (IMO Resolution A653 (16))
• Fire Resistance - Marine Equipment Directive compliant
• Food Contact - FDA Compliant: Dry Foodstuffs


Consult your International Paint representative for the system best suited for the surfaces to be protected. When using in cargo holds, consult the Intershield 300 Cargo Hold Application Guidelines.


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.


Where necessary, remove weld spatter and smooth weld seams and sharp edges. Weld seams and areas of shop primer damage or breakdown should be blast cleaned to Sa2½ (ISO 8501-1:2007) or power tooled to Pt3 (JSRA SPSS:1984).
Intact, approved, shop primers must be clean, dry and free from soluble salts and any other surface contaminants. Unapproved shop primers will require complete removal by blast cleaning to Sa2½ (ISO 8501-1:2007). In some cases sweep blasting to a defined International Paint standard (eg AS2 or AS3) may be acceptable. Consult your International Paint representative for specific recommendations.


Abrasive blast clean to minimum Sa2 (ISO 8501-1:2007) or International Paint Hydroblasting Standard HB2M. If oxidation has occurred between blasting and application of Intershield 300, 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.


Consult International Paint.


For tank coating and application of Intersleek systems, consult International Paint for the detailed coating procedures that should be followed.




Material is supplied in two containers as a unit. Always mix a complete unit in the proportions supplied. Once the
unit has been mixed it must be used within the working pot life specified.
(1) Agitate Base (Part A) with a power agitator.
(2) Combine entire contents of Curing Agent (Part B) with Base (Part A) and mix thoroughly with power agitator.


Use International GTA220 only in exceptional circumstances. DO NOT thin more than allowed by local
environmental legislation.

Airless Spray

Tip Range 0.66-0.79 mm (26-31 thou)
Total output fluid pressure at spray tip not less than 211 kg/cm² (3000 p.s.i.)


Application by brush is recommended for small areas only. Multiple coats may be required to achieve specified film thickness.


Application by roller is recommended for small areas only. Multiple coats will be required to achieve specified film thickness.


International GTA822/GTA220


Work Stoppages and Cleanup

Do not allow material to remain in hoses, gun or spray equipment. Thoroughly flush all equipment with International GTA822/GTA220. 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 GTA822/GTA220. 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.


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."


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.


Intershield 300 should be high pressure fresh water washed and/or solvent washed prior to overcoating, where necessary, to ensure removal of any surface contamination that has accumulated. Suitable for use on tanker decks subject to Classification Society Regulations. Intershield 300 may be applied at substrate temperatures down to -15°C. Before applications are made below -5°C consult your local IP representative for further detail of application procedure. When Intershield 300 is to be overcoated with Intersleek 737, Intersleek 386 or Intersleek 731 the following maximum pot lives must be observed:

+ 0°C - 160 minutes
+15°C - 105 minutes
+25°C - 75 minutes
+35°C - 45 minutes

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.


Unit Size Part A Part B
  Vol Pack Vol Pack
17.5 lt 12.5 lt 20 lt 5 lt 5 lt

For availability of other unit sizes consult International Paint


Unit Size Unit Weight
17.5 lt 23.4 Kg


Shelf Life 12 months at 25°C. Subject to re-inspection thereafter. Store in dry, shaded conditions away from sources of heat and ignition.