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Interline 104

A two pack, FDA compliant zinc ethyl silicate tank coating.


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 QHA126-Grey
Finish/Sheen Not applicable
Part B (Curing Agent) QHA125
Volume Solids 52% ±2% (ISO 3233:1998)
Mix Ratio 2.83 volume(s) Part A to 1 volume(s) Part B
Typical Film Thickness 100 microns dry (192 microns wet)
Theoretical Coverage 5.20 m2/litre at 100 microns dft, allow appropriate loss factors
Method of Application Airless Spray, Brush, Conventional Spray, Roller
Flash Point Part A 32°C; Part B 15°C; Mixed 21°C
Induction Period Not required

Drying Information

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


See Limitations section when Intershield 300 is used as part of an Intersleek scheme.

Overcoating Data

see limitations
Overcoated By Substrate Temperature
  5°C 10°C 25°C 35°C
  Min Max Min Max Min Max Min Max
Interline 104 24 hrs 10 days 24 hrs 10 days 24 hrs 10 days 24 hrs 8 days


618 g/lt as supplied (EPA Method 24)
258 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:

• Food Contact - FDA Compliant: Liquid and Dry Foodstuffs

Consult your International Paint representative for details.


Consult your International Paint representative for the system best suited for the surfaces to be protected. When using in cargo tanks, consult the Interline 104 Cargo Tank Application Procedures.


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.
This product must only be applied to surfaces prepared by abrasive blast cleaning to Sa21⁄2 (ISO 8501-1:2007). A sharp, angular surface profile of 30-50 microns is recommended.


Abrasive blast clean to Sa21⁄2 (ISO 8501-1:2007).
Interline 104 must be applied before oxidation of the steel occurs. If oxidation does occur the entire oxidised area should be reblasted to the standard specified above.
Surface defects revealed by the blast cleaning process, should be ground, filled, or treated in the appropriate manner.
A sharp, angular surface profile of 30-50 microns is recommended.


Consult International Paint.



Interline 104 is supplied in 2 parts, a paste component (Part A) and a liquid binder component (Part B). The binder (Part B) should be slowly added to the paste (Part A) whilst stirring with a mechanical agitator. DO NOT ADD PASTE TO LIQUID. Material should be sieved 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. This is a low viscosity material and agitation is required during application to ensure homogeneity is maintained.


Recommended only for conventional spray application.

Airless Spray

Tip Range 0.46-0.61 mm (18-24 thou)
Total output fluid pressure at spray tip not less than 112 - 141 kg/cm2 (1590 - 2010 p.s.i.)

Conventional Spray

Use suitable proprietary equipment. Thinning may be required.


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


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


International GTA803

Work Stoppages and Cleanup

Do not allow material to remain in hoses, gun or spray equipment. Thoroughly flush all equipment with International GTA803. 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. 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, relative humidity 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.


International Paint should be consulted to confirm that the tank coating is suitable for the range of cargoes to be carried.
The drying times and overcoating intervals may alter due to various on-site factors such as humidity, tank configuration, ventilation rates, etc.

Consult the detailed coating application procedures for the time interval required between coating completion and cargo loading.
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
10 lt 7.39 lt 10 lt 2.61 lt 5 lt


Unit Size Unit Weight
10 lt 25.11 Kg


Shelf Life

Part A - 12 months minimum from date of manufacture when maintained in protected storage at temperatures up to 25°C.
Part B - 4 months minimum from date of manufacture when maintained in protected storage at 25°C.
Subject to reinspection thereafter. Store in dry, shaded conditions away from sources of heat and ignition.