International Intershield 300HS is a high solids, abrasion resistant, aluminium pigmented pure epoxy coating, Intershield 300HS provides excellent long term anticorrosive protection and low temperature cure capability.

Intershield 300HS is a universal primer that can also be used as a ballast tank coating.

International Intershield 300HS is a high solids version of International Intershield 300 - with a proven 21-year track record on over 8,700 projects, International Intershield 300 is the offshore industry benchmark in anticorrosive performance. This unique abrasion resistant, pure epoxy coating, with an aluminium content >9%, offers long term asset protection to offshore structures such as fixed platforms, SPARs, TLPs, semi-submersibles, drillships and FPSOs greatly reducing through-life maintenance costs.

International Intershield 300HS is ideal for new construction and maintenance and repair projects.

Intended Uses:

As 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.

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• Features & Benefits
• Surface Preparation
• Application Notes

Features & Benefits

• High solids, abrasion resistant, aluminium pigmented pure epoxy coating
• High solids version of International Intershield 300
• A universal primer which can be applied directly to mechanically prepared shop primer or suitably prepared bare steel
• Ideal for new construction and maintenance projects
• Unparalleled long-term corrosion and abrasion resistance with cathodic protection
• Can also be used as a ballast tank coating
• Low temperature cure and year-round workability
• Light coloured for easy tank inspections

Surface Preparation

• All surfaces to be coated should be clean, dry and free from contamination
• Prior to paint application, all surfaces should be assessed and treated in accordance with ISO 8504:2000
• Oil or grease should be removed in accordance with SSPC-SP1 solvent cleaning

Abrasive Blast Cleaning:

• For immersion service, Intershield 300HS must be applied to surfaces blast cleaned to Sa2½ (ISO 8501-1:2007) or SSPC-SP10
• However, for atmospheric exposure Intershield 300HS may be applied to surfaces prepared to a minimum of Sa2½ (ISO 8501 1:2007) or SSPC-SP6
• Surface defects revealed by the blast cleaning process should be ground, filled, or treated in the appropriate manner
• A surface profile of 50-75 microns (2-3 mils) is recommended

Ultra-High Pressure Hydroblasting / Abrasive Wet Blasting:

• May be applied to surfaces prepared to Sa2½ (ISO 8501-1:2007) or SSPC-SP6 which have flash rusted to no worse than Grade HB2M (refer to International Hydroblasting Standards) or Grade SB2M (refer to International Slurry Blasting Standards)

Shop Primed Steel:

• Areas of breakdown, damage, weld seam etc. should be prepared to the specified standards (e.g. Sa2½ (ISO8501-1: 2007) or SSPC-SP10 or power tool cleaned to Pt3 (JRSA SPSS:1984) or SSPC-SP11)
• 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) or SSPC-SP10
• In some cases, sweep blasting to a defined International Paint standard (e.g. AS2 or AS3) may be acceptable

Application Notes

• Apply by airless spray only
• Application by other methods, e.g. brush, roller, may require more than one coat and should only be used for small areas or touch-up work
• This product must only be thinned using recommended International thinners.
• The use of alternative thinners (GTA220), particularly those containing ketones, can severely inhibit the curing mechanism of the coating
• Surface temperature must always be a minimum of 3°C (5°F) above dew point
• When applying Intershield 300HS in confined spaces ensure adequate ventilation
• In common with all epoxies Intershield 300HS will chalk and discolour on exterior exposure
• However, these phenomena are not detrimental to anti-corrosive performance
• Where a durable, cosmetic finish with good gloss and colour retention is required, overcoat with recommended topcoats
• Over-application of Intershield 300HS will extend both the minimum overcoating periods and handling times, and may be detrimental to long term overcoating properties
• Intershield 300HS should be high pressure water washed and/or solvent washed prior to overcoating, where necessary, to ensure removal of any surface contamination that has accumulated
• Intershield 300HS may be applied at substrate temperatures between -5°C and -20°C in certain locations worldwide
• However, consideration should be given when overcoating at low temperatures as the remainder of the system may require higher temperatures to achieve full cure

Please see the Product Data Sheet attached above for detailed Application Instructions before use.