Jotun Hardtop XP


An on-site friendly, glossy polyurethane topcoat for most epoxy systems where a durable, weather-resistant finish is required in a wide range of aggressive atmospheres.

Jotun Hardtop XP is one of the most popular polyurethane topcoats – protecting millions of square metres every year. Another Jotun paint that can be applied by airless spray, brush or roller on a wide range of primers.

  • Now available in 1,700+ colours, including RAL, NCS, BS and Jotun Colours

Please note: Colours are sold in the nearest tin size but actual paint volume per tin may vary up to 10% depending on colour.

Professional use only - from the 24th August 2023, adequate training is required before industrial or professional use of this product.

Should you require training, visit -

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£60.75(ex. VAT)
£72.90 (inc. VAT)
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In Stock and Available for Delivery (See Delivery Options Below)


Professional use only - from the 24th August 2023, adequate training is required before industrial or professional use of this product.

Should you require training, visit -

Jotun Hardtop XP is one of the most popular polyurethane topcoats – protecting millions of square metres every year. It is available worldwide and is a favourite topcoat among painters. Jotun Hardtop XP is extremely versatile and can be applied by airless spray, brush or roller on a wide range of primers. Roller application properties are excellent with good flow and finish.

Low dry spray makes the gloss level predictable and on-site friendly. Jotun Hardtop XP has great gloss and colour retention, and gives a better finish, less spills and lower paint consumption. Jotun Hardtop XP is recommended as a glossy topcoat over most epoxy systems where a durable, weather-resistant finish is required in a wide range of aggressive atmospheres.

Product Information

  • High gloss finish
  • The Number 1 selling polyurethane topcoat for heavy corrosion systems 
  • Excellent colour and gloss retention
  • Excellent application properties
  • Excellent brush and roller application properties
  • VOC compliant and high solids formulation

Approvals and certificates

  • NORSOK System 1, Rev.5
  • Highways Agency Approved - Item No. 168
  • Low flame spread certificate acording to IMO/Solas directive.
  • Grain, Newcastle Ocupational Health
  • Food, Compliant with USA, FDA Title 21, Part 175.300 for dry solids
  • Part of a complete system that is certified to Network Rail Line Specification NR/L3/CIV/039 System M20, M21, M24, M34, N1, N2, N4 and N9 (Cert. No's. XM92/M20-140, M20-179, XM92/M20-149, XM92-163, XM92/M21-093, XM92/M21-147, XM92/M21-139, XM92/M21-150, XM92/M24-141, XM92/M24-142, XM92/M24-143, XM92/M24-144, XM92/M24-145, XM92/M24-146, XM92/M24-126, XM92/M24-158, XM92/M34-005, XM92/M34-006, XN90/N1-075, XN90/N1-061, XN90/N2-076, XN90/N2-078, XN90/N2-056, XN90/N2-064, XN90/N4-077, N4-102, XN90-085, XN90/N9-065, XN90/N9-069) Item 7.3.1.

Additional certificates and approvals may be available on request.

Features & Benefits

  • Very good colour and gloss retention
  • Nice flow properties, thus suitable for large structures
  • Well suited for application with roller and brush

Hardtop XP will form a long lasting corrosion protection system together with primers like Barrier, Resist, Jotamastic, Penguard and Jotacote for a wide range of purposes.

High volume solids
High volume solids compared to traditional polyurethanes result in lower VOC (volatile organic compounds) per litre, making it a modern solution with low environmental impact.

Application properties
Optimised rheology ensures very good application properties with airless spray, brush and roller.

Flow properties
Hardtop XP displays very good flow properties, and is our true all-round polyurethane topcoat for marine and protective structures.

NORSOK pre-qualification
Hardtop Flexi is pre-qualified in several NORSOK systems No. 1.

Product Details

Data sheet

For Use By
Professional Use
Application Method
Brush, Roller, Spray
Fully Tintable
Single, Two or Three Pack
Single, Two or Three Pack
Pack Size
5L, 20L
Brush, Roller, Spray
6.3 to 12.6m²/l
Touch Dry
3.5 hours
UN Number (Activator)
UN Number (Base)
Suitable For Use On
Suitable For Use On
Industrial Structures
Suitable For Use On
Suitable For Use On
Suitable For Use On
Suitable For Use On
Suitable For Use On
Offshore Environments
Suitable For Use On
Power Plants
Suitable For Use On
Application Method
Application Method
Application Method
Product Type
Product Range
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Anthracite Grey
Colour Family

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

questions john on 2022-11-16 08:46:54

What is the mixing ratio

Answer from Rawlins’ Technical Team: 

The mixing ratio by volume is comp A 10:1 part comp B.

questions Luke on 2022-09-09 13:46:12

I have a fibreglass boat with tired gelcoat; spider cracks from dings, chips. Generally needs doing up. I am considering getting the surface prepared using 120 grit paper, wash down with std thinners and then applying Jotun Hardtop XP. It is an off white hull and I want to use a dark red. Apart form maybe needing a few coats, is there any reason why that surface preparation should not be a good substrate for this 2 pack paint ? Also, despite my best efforts, I am expecting brush marks; can this be sanded and polished to get super finishes ? Thanks in advance.

Answer from Rawlins’ Technical Team: 

We would advise any issues with the fibre glass such as cracks and chips should be repaired prior to application.

Instead of washing down with solvents it is preferable to wash with a detergent (Fairy liquid solution) and fresh water wash.

Assuming the fibreglass hull is clean, dry, sound and prepared as detailed in the technical data sheet we would normally recommend to prime first with Jotun Penguard HB followed by  Jotun Hardtop XP.

But if the surface has a light scratch pattern and is very clean, then yes you can apply the Jotun Hardtop XP direct.

We would recommend a minimum of 2 brush or roller  applied coats.

Once the paint is hard dry it can be buffed up between coats, but avoid using polishing compounds.

questions Stefano on 2022-08-02 03:59:16

I'm in the process of spray painting my boat. I've been recommended to use 30% thinner N.10 but I've noticed the paint stays a little "gummy" even after days. Is that normal? Thanks

Answer from Rawlins’ Technical Team: 

Thank you for the enquiry, we have contacted you directly for more information.

questions Magnus AHlberg on 2022-06-25 19:16:40

Hi, I am using the Hardtop Xp as topcoat on my narrowboat (on top of Jotamastic 90) but it dries to fast, which makes really difficult to get an even finish. It is recommended 1:10 on the hardener - should I reduce it? If not, how much thinner can I use (rough %)? I have Jotun Thinner No. 10 available as a thinner. Appreciate advise on this.

Answer from Rawlins’ Technical Team: 

It is not recommend to alter the mixing ratio of Part A to Part B.

The recommended maximum percentage of thinner for Jotun Hardtop XP is 5%, Jotun Thinner No. 10 should be used.

questions Andrew Docherty on 2020-11-30 10:22:55

Can Jotun XP be used on Marina "D" fenders to cover small damage and abrasions marks?

Answer from Rawlins’ Technical Team: 

Thank you for the enquiry, we have contacted you by email for more information.

questions Mike simcox  on 2018-04-30 16:28:35

Hi It says airless spray on hardtop xp? Can it not be sprayed using a normal air compressor ? Along with jotamastic 90 as a primer? Cheers

Answer from Rawlins’ Technical Team: 

Airless spray is preferred for Jotun Hardtop XP but air spray equipment can be used (see Application Guide for details - this can be downloaded from the 'Download' section on the product page). Jotun Jotamastic 90 can only be applied by airless spray.

questions Paul Rafferty on 2016-09-08 15:49:03
Question: Can you please provide a recommended maintenance cycle for the Hardtop XP two pac topcoat applied to Jotun Intumescent paint system in an external environment ? Thanks
Answer from Rawlins’ Technical Team: 

There are several corrosive categories (ISO 12944-5, see table below) we have to consider when offering such advice. In different environments the coatings will have different durability. Applying two coats of Jotun Hardtop XP instead of one would also increase the life expectancy.

We normally suggest that the coating system should be inspected after 5 years and any remedial damage repaired. Equally if damaged in service we would strongly recommend urgent repairs. An undamaged coating system can last for up to 15 years assuming regular maintenance.

Corrosivity Category Building Exterior Building Interior
C1 Very Low --- Heated buildings with clean atmospheres, .g. offices, shops, schools and hotels.
C2 Low Atmospheres with low level pollution. Mostly rural areas. Unheated buildings where condensation may occur, e.g. depots, sports halls.
C3 Medium Urban and industrial atmospheres, moderate sulphur dioxide pollution. Coastal areas with low salinity. Production rooms with high humidity and some air pollution e.g. food processing plants, laundries, breweries, dairies.
C4 High Industrial areas and coastal areas with moderate salinity. Chemical plants, swimming pools, industrial and coastal.
C5-I Very High Industrial Industrial areas with high humidity and aggressive atmospheres. Buildings or areas with almost permanent condensation and with high pollution.
C5-M Very High Marine Coastal and offshore areas with high salinity. Buildings or areas with almost permanent condensation and with high pollution.

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Jotun Hardtop XP is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT

Film Thickness
Total area²
Or enter length and width dimensions:

*All estimates are based on theoretical consumption rates and do not take into account any substrate deviations or wastage

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