International Interline 850

Part A: UN1263 (Class: 3, Pk Grp: III). Part B: UN3469 (Class: 3.8, Pk Grp: III)
A two component, chemically resistant, high solids, high build epoxy phenolic tank and pipe lining.
Available in 20 Litres
From £572.40 £477.00
In stock
Only %1 left
Product Description

International Interline 850 is a two component, chemically resistant, high solids, high build epoxy phenolic tank and pipe lining.

Best Uses

International Interline 850 is formulated to provide corrosion protection for the internals of steel storage tanks and pipes containing a range of products, including crude oil, unleaded gasoline blends, MTBE, jet fuels, caustic solutions, potable water and a selected range of aromatic and aliphatic solvents.

International Interline 850 is also suitable for potable water tank applications.


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. Where necessary, remove weld spatter and smooth weld seams and sharp edges. Oil or grease should be removed in accordance with SSPC-SP1 solvent cleaning.

This product must only be applied to surfaces prepared by abrasive blast cleaning to Sa2½ (ISO 8501-1:2007) or SSPC SP10. A sharp, angular surface profile of 50-75 microns (2-3 mils) is recommended. Interline 850 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.
Where local VOC regulations allow, surfaces may be primed with Interline 850 (thinned 10-15% GTA420) to 40 microns (1.5 mils) dry film thickness before oxidation occurs. Alternatively, the blast standard can be maintained by use of dehumidification. Areas of breakdown, damage, weld seams etc., should be prepared to the specified standard (e.g. Sa2½ (ISO 8501-1:2007) or SSPC-SP10 or power tool cleaned to Pt3 (JSRA SPSS:1984) or SSPC-SP11).

Concrete Substrates
Interline 850 is also suitable for application to concrete in certain conditions; please see Product Application Guidelines for further information.

Technical Details


This material is recommended for the storage of aviation fuel. It is also suitable for storage of unleaded gasoline.

This product has the following specification approvals:

  • US Military Specification MIL-PRF-4556F (Buff and White colours only)
  • DEF STAN 80-97 Annexe G for the lining of bulk aviation fuel tanks
  • Spanish Norma INTA 164402-A
  • Norwegian National Institute of Public Health for Use in Potable Water Tanks on Offshore Installations
  • Certified to AS/NZS 4020:2005 for tanks greater than 42,000 mm2/litre. Minimum capacity 6 litres, minimum internal pipe diameter 10 cm
  • NATO Approval No. 8010-99-690-8481 (20 Litres)
  • Norsok M-501 System 3A

Technical Info

Components: Two Part
Type: Phenolic Tank and Pipe Liner
Stock Colours: White, Grey
Tintable: No
VOC Content: 143.0g per Litre
Volume Solids: 76%
Suitable Substrates: For pipe and tank lining
Application Method: Brush, Roller, Air Atomised Spray or Airless Spray
Theoretical Coverage: 6.08m2 per litre at 125 microns
Wet Film Thickness (WFT): 132 - 197 microns
Dry Film Thickness (DFT): 100 - 150 microns
Induction Time: -
Pot Life: 2 hours at 15°C
Touch Dry: 8 hours at 15°C
Overcoatable: Between 20 hours and 30 days at 15°C
Hard Dry: 20 hours at 15°C
Cleaner / Thinner: Thin with International GTA220 (or International GTA415). Clean up with International GTA853 or International GTA415
Shelf Life: 12 months minimum at 25°C
Packaging: Available in 20 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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