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Interthane 990

A two pack, acrylic polyurethane finish giving excellent durability and long term recoatability.

Intended uses

As a cosmetic finish on above water areas. Suitable for use on topsides, external superstructure, external decks and boottops. For use at Newbuilding, Maintenance & Repair or On Board Maintenance.

color PHB000-White, PHY999-Black ; and a wide range of colours.
Finish/Sheen High Gloss
Part B (Curing Agent) PHA046
Volume Solids 57% ±3% (ISO 3233:1998)
Mix Ratio 6.00 volume(s) Part A to 1 volume(s) Part B
Typical Film Thickness 50 microns dry (88 microns wet)
Theoretical Coverage 11.40 m2/litre at 50 microns dft, allow appropriate loss factors
Method of Application Airless Spray, Brush, Conventional Spray, Roller
Flash Point Part A 34°C; Part B 49°C; Mixed 35°C
Induction Period None required

Drying Information

Substrate Temperature
-5°C 5°C 25°C 35°C
Touch Dry [ISO 1517:73] 8 hrs 5 hrs 1.5 hrs 60 mins
Hard Dry [ISO 9117:90] 60 hrs 24 hrs 6 hrs 4 hrs
Pot Life 26 hrs 12 hrs 2 hrs 60 mins

Overcoating Data

seeLimitations
Overcoated By Substrate Temperature
-5°C 5°C 25°C 35°C
Min Max Min Max Min Max Min Max
Interthane 990 60 hrs ext 24 hrs ext 6 hrs ext 4 hrs ext

Note

Drying and overcoating times quoted are measured at 50 microns dry, at higher film thickness times will be increased.

Regulatory data

VOC

420 g/lt as supplied (EPA Method 24) 341 g/kg of liquid paint as supplied. EU Solvent Emissions Directive (Council Directive 1999/13/EC)

MIL SPEC

MIL-PRF-24667B, Type I, II, III & VIII Composition G MIL-PRF-24667B, Type I, V, VII & VIII, Composition L for colour marking puposes only

Certification

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

  • Fire Resistance - Surface Spread of Flame (WFR) - (IMO Resolution A653 (16))
  • Fire Resistance - MSC61(67) Smoke & Toxicity (WFR)
  • NORSOK M-501, Rev 4, system no.1 (NITN)
  • Fire Resistance - Marine Equipment Directive compliant

System and compatibility

Interthane 990 must be applied over a recommended primer system, which will vary depending upon the vessel area. Direct application is acceptable over the following marine anticorrosives:

  • Intershield 300
  • Intergard 400
  • Intergard 400
  • Interbond 201 Temperate
  • Interbond 501
  • Intergard 264 (U.S.A.)

A tiecoat of Intergard 263, Intergard 267 or Intergard 269 may be required if Interthane 990 is to be applied over other epoxy primers and may also be used to extend the maximum overcoating interval when Interthane 990 is to be applied over those primers listed above. Interprime 198 may also be used as a primer for Interthane 990. 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/MAJOR REFURBISHMENT

Interthane 990 should always be applied over a recommended primer coating scheme. The primer surface should be dry and free from all contamination, and Interthane 990 must be applied within the overcoating intervals specified (consult the relevant product data sheet). For boottop areas the overcoating intervals for primers are reduced. Consult International Paint. Areas of breakdown, damage etc. should be prepared to the specified standard (eg. Sa21⁄2 (ISO 8501-1:2007)) and primed prior to the application of Interthane 990.

REPAIR/OBM

Interthane 990 should always be applied over a recommended primer coating scheme. The primer surface should be dry and free from all contamination, and Interthane 990 must be applied within the overcoating intervals specified (consult the relevant product data sheet). For boottop areas the overcoating intervals for primers are reduced. Consult International Paint. Areas of breakdown, damage etc. should be prepared to the specified standard (eg. Sa21⁄2 (ISO 8501-1:2007)) and primed prior to the application of Interthane 990. Interthane 990 may be applied directly over aged Interthane 990 following thorough fresh water washing and degreasing provided the coating to be overcoated is in an intact and tightly adherent condition. Loose or flaking coatings should be removed back to a firm edge and Interthane 990 or an appropriate primer should be used to repair the area before application of the full coat. This product may be applied directly over most generic types of paint that have been aged for at least 3 months. It is advisable that a small trial be carried out before applying a full coat. Consult your International Paint representative for specific recommendations.

APPLICATION

Mixing

Material is supplied in 2 containers as a unit. Always mix a complete unit in the proportions supplied. (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.

Thinner

Not recommended. Use International GTA056, GTA713, GTA733 only in exceptional circumstances. DO NOT USE ANY OTHER THINNER. DO NOT thin more than allowed by local environmental legislation

Airless Spray

Recommended Tip Range 0.33-0.45 mm (13-18 thou) Total output fluid pressure at spray tip not less than 155 kg/cm2 (2200 p.s.i.)

Conventional Spray

Use suitable proprietary equipment. Thinning may be required.

Brush

Suitable.

Roller

Suitable.

Cleaner

International GTA056/GTA713/GTA733

Work Stoppages and Cleanup

Do not allow material to remain in hoses, gun or spray equipment. Thoroughly flush all equipment with International GTA056/GTA713/GTA733. 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 GTA056/GTA713/GTA733. 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

This product is not recommended for use in permanantly immersed conditions. Interthane 990 may be used on boottop areas at reduced overcoating intervals over appropriate primers. Consult International Paint. For brush and roller application, and in some colours, two coats of Interthane 990 may be required to give uniform coverage, especially when applying Interthane 990 over dark undercoats and when using certain lead-free bright finish colours such as yellows and oranges. Best practice is to use a colour compatible intermediate or anticorrosive coating under Interthane 990. Interthane 990 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. Low temperature, high relative humidity and condensation occurring during or immediately after application may result in a matt finish and an inferior film. Premature exposure to ponding water will cause colour change, especially in dark colours and at low temperatures. 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 Part A Part B
Vol Pack Vol Pack
20 lt 17.14 lt 20 lt 2.86 lt 5 lt
5 US gal 5 US gal 5 US gal 1 US gal 1 US gal
1 US gal 1 US gal 1 US gal 1 US gal 1 US gal

Unit shipping weight

Unit size Unit Weight
20 lt 26.59 Kg
5 US gal 54.7 lb
1 US gal 13.7 lb

Storage

Shelf Life Part A - 24 months minimum at 25°C. Part B - 12 months minimum at 25°C Subject to reinspection thereafter. Store in dry, shaded conditions away from sources of heat and ignition.
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