Jotun Jotamastic 90 Two Part Kit

Two-Part Surface Tolerant Epoxy Coating for Corrosion Protection & Industrial Maintenance

Jotun Jotamastic 90 Two Part Kit is a high build surface tolerant epoxy coating designed for long term corrosion protection in demanding industrial, marine, and offshore environments.
Supplied as a complete two-part kit containing Part A and Part B, Jotamastic 90 is suitable for maintenance coating systems where durable protection and strong adhesion are required, even on less than ideally prepared steel surfaces.

Engineered for professional use, this epoxy mastic coating can be applied as a primer, intermediate, or finish coat within complete protective coating systems. Jotamastic 90 provides reliable performance for steel structures, industrial equipment, marine assets, and maintenance projects exposed to harsh operating conditions.

Available Sizes

• 5L Kit
• 20L Kit

Recommended Thinner

Jotun Jotamastic 90 requires Jotun Thinner No.17 when thinning is necessary for application.

• Specifically formulated for epoxy coating systems
• Suitable for spray, brush, and roller application
• Helps maintain coating performance and finish quality
• Suitable for equipment cleaning after use

Important: Always follow the Jotun technical data sheet for thinning ratios. Do not substitute with No.7 or No.10 thinners as incorrect thinner selection may affect curing, adhesion, and long-term coating performance.

Features & Benefits

Key Features

• Two-part epoxy mastic coating system
• Surface tolerant formulation
• Available in 5L and 20L kits
• High build coating capability
• Suitable for multiple coating system roles
• Compatible with spray, brush, and roller application

Key Benefits

• Provides long term corrosion protection
• Adheres to less than ideally prepared surfaces
• Reduces the need for extensive surface preparation
• Suitable for primer, intermediate, or finish coat use
• Performs in harsh marine and industrial environments
• Supports maintenance and asset protection applications

Technical Specs

• Product Type: Two-part epoxy mastic coating
• Brand: Jotun
• Product Name: Jotamastic 90
• Available Sizes: 5L Kit, 20L Kit
• Application Method: Spray, brush, or roller
• Recommended Thinner: Jotun Thinner No.17
• Suitable Substrates: Steel and industrial surfaces

How It Works

• Part A and Part B are mixed before application
• Applied to prepared steel or industrial surfaces
• Builds a high performance protective coating layer
• Cures into a durable barrier against corrosion and environmental exposure

Key Applications

• Steel structure maintenance and repair
• Marine and offshore environments
• Industrial plant and equipment protection
• Corrosion protection in harsh operating conditions
• Maintenance coating systems
• Asset preservation and refurbishment projects

Jotun Jotamastic 90 Two Part Kit FAQs

Q1: What is Jotun Jotamastic 90 Two Part Kit used for?
A: Jotun Jotamastic 90 Two Part Kit is used for corrosion protection of steel structures, industrial equipment, and marine assets in demanding environments.

Q2: What thinner should be used with Jotun Jotamastic 90 Two Part Kit?
A: Jotun Jotamastic 90 Two Part Kit requires Jotun Thinner No.17 when thinning is necessary.

Q3: Can Jotun Jotamastic 90 Two Part Kit be applied to less prepared surfaces?
A: Yes, Jotun Jotamastic 90 Two Part Kit is designed with a surface tolerant formulation suitable for maintenance applications.

Q4: Can Jotun Jotamastic 90 Two Part Kit be used as a complete coating system?
A: Jotun Jotamastic 90 Two Part Kit can function as a primer, intermediate, or finish coat depending on the coating system design.

Q5: What application methods are suitable for Jotun Jotamastic 90 Two Part Kit?
A: Jotun Jotamastic 90 Two Part Kit can be applied by spray, brush, or roller.

Q6: What kit sizes are available for Jotun Jotamastic 90 Two Part Kit?
A: Jotun Jotamastic 90 Two Part Kit is available in 5L and 20L kits.