Jotun Hardtop HB

Part A and B: UN1263 (Class: 3, Pk Grp: III)
A hard wearing top coat for use in aggressive atmospheric exposure. Network Rail/Railtrack approved. Highways Approved Item No.169.
Available in 5 Litres and 20 Litres
From £82.26 £68.55
In stock
Only %1 left
Product Description

Jotun Hardtop HB is a 2 component polyurethane topcoat for marine and industrial structures in highly atmospheric conditions.

BBA Approval Logo

This product is part of the Network Rail/Railtrack RT98 Systems M20, M21, M24, N2 and N9

Jotun Hardtop HB is a two component chemically curing matt polyurethane topcoat. It is available in most BS4800, RAL and Jotun house colours and has been formulated to provide a highly anti-corrosive and durable top coat finish.

Best Uses

Jotun Hardtop is recommended for marine structures, bridges and industrial structures, as well as boats, ships and yachts. When being used as a deck coating the addition of an anti-slip aggregate can be made, to provide a slip resistant finish. Conforms to the Highways Agency item No.169.


Jotun Hardtop HB is a highly efficient and protective paint coating, designed for application using an airless spray gun. The theoretical coverage for Jotun Hardtop HB is 8.3 square metres per litre. You may use a paint brush for strip coatings or when applying to small areas only (care must be taken to achieve the specified dry film thickness).

Surface and Environment

Jotun Hardtop HB is a high build product which is ideal for areas such as coastal environments and offshore applications, where the paint is subject to extreme and aggressive environmental conditions.

Technical Details


  • This product is part of the Network Rail/Railtrack RT98 Systems M20, M21, M24, N2 and N9
  • Certificate numbers XM92/M20-148, XM92/M21-114, XM92/M24-124, XM92/M24-125, XN90/N2-063 and XN90/N9-066
  • Highways Agency Item 169
  • BBA HAPAS certified for the corrosion protection of structural steelwork in highway applications
  • Low Flame Spread in accordance with EU Directive for Marine Equipment. Approved in accordance with parts 5 and 2 of Annex 1 of IMO 2010 FTP Code, or Parts 5 and 2 of Annex 1 of IMO FTPC when in compliance with IMO 2010 FTP Code Ch. 8

Technical Info

Components: Two Part
Type: Chemically curing aliphatic acrylic polyurethane coating
Finish: Matt
Stock Colours: Just tints
Tintable: Yes, to RAL and BS Colours. Please note, bespoke tints are non refundable / exchangable.
VOC Content: 459.0g per litre
Volume Solids: 50%
Suitable Substrates: Compatible coated surfaces
Application Method: Airless Spray or Brush
Theoretical Coverage: 8.3 - 5m2 per litre
Wet Film Thickness (WFT): 120 - 200 microns
Dry Film Thickness (DFT): 60 - 100 microns
Induction Time: -
Pot Life: 4 hours at 23°C
Touch Dry: 4 hours at 10°C
Overcoatable: 12 hours at 10°C
Fully Cured: 10 days at 10°C
Cleaner / Thinner: Jotun Thinner No. 10
Shelf Life: 48 months
Packaging: Available in 5 Litres and 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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