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  • Free shipping over £295+VAT

  • 50 years in the industry

  • No1 UK Paint Provider

  • 4.4/5 out of 290 reviews

Hardeners & Additives

(20 products)

We supply a comprehensive range of hardeners and additives from leading brands like Jotun and Ultrimax that have been designed with the optimisation of paint and coating performance front and centre of every product. While our range has been curated to meet a range of different paint and coating project needs, all products can be counted on for their durability and efficiency. Used for a range of tasks, our hardeners and additives are used across many different sectors and industries including automotive and industrial manufacturing.

Hardeners and Additives enhance the outcome of any paint job to ensure that your flawless finish lasts for longer. Creating a tougher surface to your paint films, hardeners prevent excess wear and tear on paint jobs.

Completing paint jobs can be slowed up by drying times and down time can dramatically reduce progress and add to the bottom line. Ultrimax’s time-saving additive, the Ultrimax 2K Rocket Paint Accelerator, significantly reduces your drying time without compromising on the quality of your outcome.

Our range includes specialised products that work with your environment, like the Jotun Jotamastic 90 Wintergrade Hardener. An additive that has been specially formulated for working in colder conditions and it ensures that you can count on reliable curing and greater durability. This can be particularly useful for external industrial or marine coatings that require painting to be completed in challenging environments.

Explore Ultrimax’s range of hardeners and additives today to elevate your coating projects.

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Common Questions

Do you offer trade accounts?

Yes, eligible businesses can apply for a trade account, offering perks like discounts, flexible payment terms, and premium services. Apply now.

How long do orders take to be shipped?

Orders placed by 2pm (Monday–Friday) are dispatched the same day. Orders after 2pm will be sent the next working day. Please note, color-matched paints may take longer - contact us for delivery details. The website will indicate any products with extended lead times.

Do you ship overseas?

We currently have a depot in Doncaster which ships orders out to Mainland UK and also a depot in Antrim in Northern Ireland which ships orders out to our Ireland customers. We currently do not ship to any other countries.

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