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 £102.14 £85.12
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

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