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Interspeed 340 BQA344, BQA346, BQA347

TBT free, controlled depletion polymer (CDP) self polishing antifouling system.


For direct application over existing antifoulings in good condition. Can be applied over BQA341 where specified. For use at Newbuilding or Maintenance & Repair.

color BQA344-Plum, BQA346-Pink, BQA347-Red
Finish/Sheen Not applicable
Part B (Curing Agent) Not applicable
Volume Solids 60% ±2% (ISO 3233:1998)
Mix Ratio Not applicable
Typical Film Thickness 125 microns dry (208 microns wet)
Theoretical Coverage 4.80 m²/litre at 125 microns dft, allow appropriate loss factors
Method of Application Airless Spray, Brush, Roller
Flash Point

Single Pack 26°C

Drying Information

  Substrate Temperature
  -5°C 5°C 25°C 35°C
Touch Dry [ISO 1517:73] 4 hrs 3.5 hrs 2 hrs 60 mins
Before Flooding 24 hrs 20 hrs 12 hrs 12 hrs


Overcoating data refers to BQA341 followed by BQA344/7.

Overcoating Data

see limitations

Overcoated By Substrate Temperature
5°C 25°C 35°C
  Min Max Min Max Min Max Min Max
Interspeed 340 12 hrs 6 mths 10 hrs 6 mths 6 hrs 6 mths 4 hrs 3 mths


VOC 352 g/lt as supplied (EPA Method 24) 191 g/kg (Top Coat) 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:
Product recognised by the following classification societies as compliant with the International Convention on the
Control of Harmful Anti-fouling Systems on Ships, 2001 (AFS 2001):
• Lloyds Register
• Germanischer Lloyd
• Korean Register of Shipping
• Det Norske Veritas
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.


Dependent on yard procedures. Consult International Paint.


Interspeed 340 should always be applied over a recommended primer coating scheme. The primer surface should be dry and free from all contamination. Interspeed 340 must be applied within the overcoating intervals specified for the primer (consult the relevant primer data sheet). Areas of breakdown, damage etc., should be prepared to the specified standard e.g. Sa2½ (ISO 8501-1:2007)) and primed prior to the application of Interspeed 340.


CDP (Controlled Depletion Polymer) antifoulings can build up a thick leached layer during service which must be removed prior to application of Interspeed 340. To remove this leached layer, treat the entire area by close high pressure fresh water washing using a fan-jet lance held close to the surface (3,000 p.s.i., 211 kg/cm²) as soon as the vessel enters dock and before it dries out. Consult International Paint for alternative methods of surface preparation. Repair corroded areas with the recommended primer coating scheme and apply Interspeed 340 within the overcoating interval specified for the primer (consult the relevant primer data sheet). Ensure that the total area is clean and dry, then overcoat with Interspeed 340.

Consult your International Paint representative for specific recommendations.




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


Not recommended. Use International GTA007 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 176 kg/cm² (2500 p.s.i.)

Conventional Spray

Application by conventional spray is not recommended.


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 may be required to achieve specified film thickness.


International GTA007

Work Stoppages and Cleanup

Thoroughly flush all equipment with GTA007. All unused material should be stored in tightly closed containers. Partially filled containers may show surface skinning and/or a viscosity increase of the material after storage. Material should be filtered prior to use.


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.


If the following maximum recommended exposure times before flooding are exceeded, antifouling performance may be impaired: Interspeed 340 BQA341 - Temperate conditions - 3 months, Tropical conditions - 1 month On immersion, Interspeed 340 BQA341 will darken in colour. On exposure Interspeed 340 may darken in colour, depending upon exposure period and climatic conditions.

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  
  Vol Pack
20 lt 20 lt 20 lt

For availability of other unit sizes consult International Paint


Unit Size Unit Weight
20 lt 41.98 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.