Jotamastic 85 by Jotun is a robust, surface-tolerant, two-component epoxy mastic primer engineered for high-performance corrosion protection across a wide range of substrates and environmental conditions. Developed with over 35 years of proven anti-corrosion expertise, Jotamastic 85 is a high solids coating designed to offer reliable and long-lasting protection in both atmospheric and immersed environments.
This versatile primer is suitable for use on carbon steel, galvanised steel, stainless steel, aluminium, and a variety of aged coatings—making it ideal for both new construction and maintenance projects. Its short recoating intervals, easy application, and subzero temperature compatibility allow for efficient and flexible use across industries, climates, and application conditions.
Whether for marine, industrial, or structural steelwork, Jotamastic 85 delivers the durability, ease of use, and surface tolerance needed to protect valuable infrastructure in even the most challenging environments.
Outstanding surface tolerance for minimal prep requirements
High solids formula for enhanced protection
Efficient application with short recoating intervals
Can be applied in subzero temperatures
Suitable for atmospheric and immersed environments
Excellent adhesion on carbon steel, aluminium, galvanized and stainless steel
Ideal for aged coatings and maintenance projects
Long-lasting corrosion protection in tough environments
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