International Interline 399

Part A: UN1263 (Class: 3, Pk Grp: III), Part B: UN3469 (Class: 3.8, Pk Grp: III)
Suitable for internal lining of storage vessels and process vessels at elevated temperatures up to 130°C.
Available in 20 Litres
From £750.17 £625.14
In stock
Only %1 left
Product Description

International Interline 399 is a high performance, highly cross-linked two component epoxy novolac tank lining, with excellent heat and solvent resistance.

Best Uses

International Interline 399 is suitable for internal lining of storage vessels and process vessels at elevated temperatures up to 130°C (266°F).


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.

Abrasive Blast 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 399 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 399 (thinned 10% International Thinner GTA220) to 40 microns (1.5 mils) dry film thickness before oxidation occurs. Alternatively, the blast standard can be maintained by use of dehumidification.

Material is supplied in two containers as a unit. Always mix a complete unit in the proportions supplied. Once the unit has been mixed it must be used within the working pot life specified. Agitate Base (Part A) with a power agitator. Combine entire contents of Curing Agent (Part B) with Base (Part A) and mix thoroughly with power agitator.

Technical Details


  • Norsok M-501 System 3D
  • Norsok M-501 System 3E

Technical Info

Components: Two Pack
Type: Epoxy Novolac
Stock Colours: White and Grey
Tintable: No
VOC Content: 199 g/L
Volume Solids: 67%
Suitable Substrates: For internal tank linings
Application Method: Airless Spray, Air Spray, Roller, Brush
Theoretical Coverage: 6.70 m2 per litre at 100 microns DFT and stated volume solids
Wet Film Thickness (WFT): 127 - 187 microns
Dry Film Thickness (DFT): 85 - 125 microns
Induction Time: -
Pot Life: 4 hours at 15°C
Touch Dry: 7 hours at 15°C
Overcoatable: Between 24 hours and 8 days at 15°C
Hard Dry: 12 hours at 15°C
Cleaner / Thinner:  
Shelf Life: 12 months minimum at 25°C (77°F). Subject to re-inspection thereafter. Store in dry, shaded conditions away from sources of heat and ignition.
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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