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Jotun Jotamastic 90 Wg Comp B 1L (Surcharge)

€24.39 Ex. VAT

Buy Jotamastic Comp A Get Comp B for €18.30

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Code JMCB-90-1SC


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Product Information

Jotamastic 90 Standard Comp B – 1L Hardener for Jotamastic 90 Epoxy Coatings

Jotamastic 90 Standard Comp B is the essential curing agent (Part 2) for use with Jotamastic 90 epoxy mastic coatings, designed to activate and complete the two-component system. When mixed with Jotamastic 90 Comp A (available in Grey, Black, Aluminium, and Base 3 tints above), this hardener creates a high-performance, surface-tolerant coating system ideal for Ireland’s toughest marine, industrial, and offshore environments.

Formulated to cure reliably in suboptimal conditions—including damp surfaces and cold climates—Jotamastic 90 offers excellent abrasion resistance, high solids content, and long-lasting corrosion protection. Whether you're applying a primer, mid coat, or finish coat, Component B ensures your epoxy system performs to the highest standard.

⚠️ Please note: This is Component B only. It must be mixed with the appropriate Jotamastic 90 Comp A variant (linked above on this page).

Delivery Info

Next working day in Ireland by Courier if ordered before 1pm.

Click & Collect is available from our Killybegs store. Please allow up to 24 hours for your order to be ready. You will receive an email as soon as your order is ready for collection

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Returns Policy

We are happy to accept items returned to us within 14 days of delivery. 

More Details on our Returns Policy »

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Key Features:

  • Essential Curing Agent: Activates Jotamastic 90 epoxy systems for proper application and performance.

  • High Solids, High Build: Contributes to a thick protective film for enhanced durability.

  • Tintable System: When used with Jotamastic 90 Base 3 Comp A, enables tinting via Jotun’s Multicolor Industry (MCI) system.

  • Surface Tolerant: Performs on marginally prepared substrates across a wide range of materials.

  • Sub-Zero Application: Can be applied in cold environments—ideal for Irish marine and winter projects.

  • Corrosion Resistant: Suitable for use in highly corrosive environments, both atmospheric and immersed.

Mixing Ratio (by volume):

  • Jotamastic 90 Comp A: 3.5 parts

  • Jotamastic 90 Standard Comp B: 1 part

Application Methods:

  • Spray: Use airless spray for large surface areas.

  • Brush: Recommended for stripe coating and detailed areas—ensure full film build.

  • Roller: Suitable for small areas, but not recommended as a primer coat. Care required for film thickness.

✅ Order now for next day delivery anywhere in Ireland – complete your Jotamastic 90 system with the trusted curing agent used by professionals nationwide.

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