International Intershield 300HS

Part A: UN1263 (Class: 3, Pk Grp: III), Part B: UN3469 (Class: 3.8, Pk Grp: III)
A high solids, abrasion resistant, aluminium pure epoxy primer. Provides excellent long term anti-corrosive protection and low temperature capability.
Available in 18 Litres
From £368.40 £307.00
In stock
Only %1 left
Product Description

International Intershield 300HS is a high solids, abrasion resistant, aluminium pure epoxy primer coating providing excellent long term anti-corrosive protection and low temperature capability.

Best Uses

International Intershield 300HS is formulated 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. For use for new construction and maintenance.


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 (eg AS2 or AS3) may be acceptable.

Apply using airless spray, brush or roller.


Intershield 300HS will normally be applied to correctly prepared steel substrates.

Suitable topcoats are:

For advice on overcoating using Intersleek systems, please contact our technical team for more details.

Technical Details
Components: Two Pack
Type: Aluminium Pure Epoxy
Finish: Matt
Stock Colours: Bronze, Aluminium
Tintable: No
VOC Content: 152 g/Kg
Volume Solids: 78%
Suitable Substrates: Bare Steel or Shop Primer
Application Method: Airless Spray, Roller, Brushy
Theoretical Coverage: 4.90 m2 per litre at 160 microns DFT
Wet Film Thickness (WFT): 205 microns
Dry Film Thickness (DFT): 160 microns
Induction Time: -
Pot Life:
  • 120 minutes at -5°C
  • 60 minutes at 25°C
Touch Dry: 10 hours at -5°C
Overcoatable: Between 28 hours and 21 days at -5°C
Hard Dry: 28 hours at -5°C
Cleaner / Thinner: Thin if necessary with International GTA220. Clean up with either International GTA822 or GTA220.
Shelf Life: 12 months at 25°C (77°F). Subject to re-inspection thereafter.
Packaging: Available in 18 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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