Jotun Jotamastic 90 is a two-pack epoxy mastic coating that is a surface tolerant, abrasion-resistant, high solids and high build. This product is tintable in a wide range of colours and is specially designed for areas where optimum surface preparation is not possible or desired. Provides long-lasting protection in environments with high corrosivity and can be used as a primer, mid-coat, finish coat or as single coat system in atmospheric and immersed environments.
Jotun Jotamastic 90 is suitable for properly prepared carbon steel, galvanised steel, stainless steel, aluminium, concrete and a range of aged coating surfaces. It can be applied at sub-zero surface temperatures.
General: Primarily designed for maintenance and repair.
Marine: Outside hulls, exterior and interior areas.
Protective: Recommended for offshore environments, including splash zones, refineries, power plants, bridges, buildings, mining equipment and general structural steel.
Due to the high surface tolerance of Jotamastic 90, it can be applied onto very poorly prepared surfaces. This means that where other coatings will fail and not adhere properly to the surface, Jotamastic 90 can be applied and it will still provide very good protection.
If applying the jotamastic 90 by spray application, use an airless spray system. Brush and roller can be used but take care to achieve the correct film thickness. It isn't recommended to use a roller when applying the first primer coat.