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Interline 974

A solvent free, two pack, pure epoxy anticorrosive.


As an anticorrosive in potable and distilled water tanks or dry, confined spaces. For use at Newbuilding or Maintenance & Repair.

color THA100-White
Finish/Sheen Gloss (ISO 2813:1978)
Part B (Curing Agent) THA101
Volume Solids 100% ±2% (ISO 3233:1998)
Mix Ratio 2 volume(s) Part A to 1 volume(s) Part B
Typical Film Thickness 150 microns dry (150 microns wet)
Theoretical Coverage 6.67 m2/litre at 150 microns dft, allow appropriate loss factors
Method of Application Airless Spray, Brush, Roller
Flash Point Part A 101°C; Part B 101°C; Mixed 101°C
Induction Period Not required

Drying Information

  Substrate Temperature
  10°C 15°C 25°C 35°C
Touch Dry [ISO 1517:73] 14 hrs 12 hrs 8 hrs 6 hrs
Hard Dry [ISO 9117:90] 24 hrs 18 hrs 11 hrs 8 hrs
Pot Life

2 hrs

90 mins 40 mins 25 mins

Overcoating Data

Overcoated By Substrate Temperature
  10°C 15°C 25°C 35°C
  Min Max Min Max Min Max Min Max
Interline 974 48 hrs 28 days 40 hrs 28 days 24 hrs 28 days 20 hrs 28 days



30 g/lt as supplied (EPA Method 24) 108 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 material has the following certification:

  • Fire Resistance - Marine Equipment Directive compliant

  • Fire Resistance - Surface Spread of Flame (WFR) - (IMO Resolution A653 (16))

  • Fire Resistance - MSC61(67) Smoke & Toxicity (WFR)

  • Potable Water - Carriage of Potable Water (WRC) (BS6920:Part 1)

  • Potable Water - Carriage of Potable Water (Folkehelseinstituttet, Norway)

Potable Water Certification issued by external bodies is dependent upon formulation and/or manufacturing site. Based on this, products supplied in different territories may not be approved to all of the standards listed above. Consult your International Paint representative for details.


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


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. Abrasive blast clean to Sa21⁄2 (ISO 8501-1:2007). If oxidation has occurred between blasting and application of Interline 974, 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. For approved shop primer, grit sweep to AS2 or AS3 International Paint Sweep Blast Standards.


Abrasive blast clean to Sa21⁄2 (ISO 8501-1:2007). If oxidation has occurred between blasting and application of Interline 974, the surface should be reblasted to the specified visual standard.


Consult your International Paint representative for specific recommendations.



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) Agitate Curing Agent (Part B) with a power agitator.(3) Combine entire contents of Curing Agent (Part B) with Base (Part A) and mix thoroughly with power agitator.


Not recommended.

Airless Spray

Recommended Tip Range 0.53-0.66 mm (21-26 thou) Total output fluid pressure at spray tip not less than 210 kg/cm2 (2990 p.s.i.)

Conventional Spray

Application by conventional spray is not recommended.


For stripe coat and touch-up of small areas only.


For stripe coat and touch-up of small areas only.


International GTA822

Work Stoppages and Cleanup

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


Airless spray pump power ratio should be 45:1 minimum. Drying times and overcoating intervals may alter due to on-site factors such as tank configuration or ventilation rates etc. Optimum performance is achieved when Interline 974 is applied over blasted steel. This product will not cure adequately below 7°C. For maximum performance ambient curing temperature should be above 10°C. Humidity control is required during application. 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.


Unit Size Part A Part B
  Vol Pack Vol Pack
20 lt 13.33 lt 20 lt 6.67 lt 10 lt


Unit Size Unit Weight
20 lt 33.47 Kg


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